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192-666: STS-96 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Discovery , and the first shuttle flight to dock at the International Space Station. It was Discovery's 26th flight. The shuttle carried the Spacehab module in the payload, filled with cargo for station outfitting. STS-96 launched from Kennedy Space Center , Florida, on 27 May 1999 at 06:49:42 AM EDT and returned to Kennedy on 6 June 1999, 2:02:43 AM EDT. STS-96

384-505: A Bachelor of Laws and passed the bar examination in Maryland . He started a law practice in downtown Baltimore, but was not successful, and took a job as an insurance investigator . A year later, Agnew moved to Schreiber's, a supermarket chain , where his role was store detective. He remained there for four years, a period briefly interrupted in 1951 by a recall to the Army after the outbreak of

576-419: A diner . A passionate self-educator, Agnew maintained a lifelong interest in philosophy; one family member recalled that "if he wasn't reading something to improve his mind, he wouldn't read." Around 1908, he moved to Baltimore, where he purchased a restaurant. Here he met William Pollard, who was the city's federal meat inspector . The two became friends; Pollard and his wife Margaret were regular customers of

768-403: A favorite son , uncommitted to any of the main candidates. At the convention, held August 5–8, Agnew abandoned his favorite son status, placing Nixon's name in nomination. Nixon narrowly secured the nomination on the first ballot. In the discussions that followed about a running mate, Nixon kept his counsel while various party factions thought they could influence his choice: Strom Thurmond ,

960-993: A spaceplane to a runway landing, usually to the Shuttle Landing Facility at KSC, Florida, or to Rogers Dry Lake in Edwards Air Force Base , California. If the landing occurred at Edwards, the orbiter was flown back to the KSC atop the Shuttle Carrier Aircraft (SCA), a specially modified Boeing 747 designed to carry the shuttle above it. The first orbiter, Enterprise , was built in 1976 and used in Approach and Landing Tests (ALT), but had no orbital capability. Four fully operational orbiters were initially built: Columbia , Challenger , Discovery , and Atlantis . Of these, two were lost in mission accidents: Challenger in 1986 and Columbia in 2003 , with

1152-409: A Japanese-American reporter as "the fat Jap", and appeared to dismiss poor socio-economic conditions by stating that "if you've seen one slum you've seen them all." He attacked Humphrey as soft on communism, an appeaser like Britain's prewar prime minister Neville Chamberlain . Agnew was mocked by his Democratic opponents; a Humphrey commercial displayed the message "Agnew for Vice President?" against

1344-487: A NASA engineer who had worked to design the Mercury capsule, patented a design for a two-stage fully recoverable system with a straight-winged orbiter mounted on a larger straight-winged booster. The Air Force Flight Dynamics Laboratory argued that a straight-wing design would not be able to withstand the high thermal and aerodynamic stresses during reentry, and would not provide the required cross-range capability. Additionally,

1536-460: A career in politics, he should become a Republican . There were already many ambitious young Democrats in Baltimore and its suburbs, whereas competent, personable Republicans were scarcer. Agnew took Barrett's advice; on moving with family to the suburb of Lutherville in 1947, Agnew registered as a Republican, though he did not immediately become involved in politics. In 1947, Agnew graduated with

1728-484: A chemistry major. After a few months, he found the pressure of the academic work increasingly stressful, and was distracted by the family's continuing financial problems and worries about the international situation, in which war seemed likely. In 1939 he decided that his future lay in law rather than chemistry, left Johns Hopkins and began night classes at the University of Baltimore School of Law. To support himself, he took

1920-470: A convention marred by violent demonstrations, had nominated Vice President Hubert Humphrey and Maine Senator Edmund Muskie as their standard-bearers. The segregationist former Governor of Alabama , George Wallace , ran as a third-party candidate and was expected to do well in the Deep South . Nixon, mindful of the restrictions he had labored under as Dwight Eisenhower 's running mate in 1952 and 1956,

2112-465: A county where the population was 97 percent white. His relations with the increasingly militant civil rights movement were sometimes troubled. In a number of desegregation disputes involving private property, Agnew appeared to prioritize law and order, showing a particular aversion to any kind of demonstration. His reaction to the 16th Street Baptist Church bombing in Alabama, in which four children died,

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2304-497: A crewed spaceflight engineer on both STS-51-C and STS-51-J to serve as a military representative for a National Reconnaissance Office payload. A Space Shuttle crew typically had seven astronauts, with STS-61-A flying with eight. The crew compartment comprised three decks and was the pressurized, habitable area on all Space Shuttle missions. The flight deck consisted of two seats for the commander and pilot, as well as an additional two to four seats for crew members. The mid-deck

2496-695: A day job as an insurance clerk with the Maryland Casualty Company at their Rotunda building on 40th Street in Roland Park . During the three years Agnew spent at the company he rose to the position of assistant underwriter. At the office, he met a young filing clerk, Elinor Judefind , known as "Judy". She had grown up in the same part of the city as Agnew, but the two had not previously met. They began dating, became engaged, and were married in Baltimore on May 27, 1942. They had four children; Pamela Lee, James Rand, Susan Scott, and Elinor Kimberly. By

2688-572: A foreign policy matter in a cabinet meeting, an angry Nixon sent Bob Haldeman to warn Agnew to keep his opinions to himself. Nixon complained that Agnew had no idea how the vice presidency worked, but did not meet with Agnew to share his own experience of the office. Herb Klein , director of communications in the Nixon White House, later wrote that Agnew had allowed himself to be pushed around by senior aides such as Haldeman and John Mitchell, and that Nixon's "inconsistent" treatment of Agnew had left

2880-459: A future reusable shuttle: Class I would have a reusable orbiter mounted on expendable boosters, Class II would use multiple expendable rocket engines and a single propellant tank (stage-and-a-half), and Class III would have both a reusable orbiter and a reusable booster. In September 1969, the Space Task Group, under the leadership of U.S. Vice President Spiro Agnew , issued a report calling for

3072-576: A glider. Its three-part fuselage provided support for the crew compartment, cargo bay, flight surfaces, and engines. The rear of the orbiter contained the Space Shuttle Main Engines (SSME), which provided thrust during launch, as well as the Orbital Maneuvering System (OMS), which allowed the orbiter to achieve, alter, and exit its orbit once in space. Its double- delta wings were 18 m (60 ft) long, and were swept 81° at

3264-617: A meeting, Agnew closed the college and ordered more than 200 arrests. Following the assassination of Martin Luther King Jr. on April 4, 1968, there was widespread rioting and disorder across the US. The trouble reached Baltimore on April 6, and for the next three days and nights the city burned. Agnew declared a state of emergency and called out the National Guard . When order was restored there were six dead, more than 4,000 were under arrest,

3456-449: A member of the House of Delegates and served as Maryland Secretary of State under Agnew. Arthur Sohmer , Agnew's long-time campaign manager, became his political advisor, and Herb Thompson , a former journalist, became press secretary. Agnew was sworn in along with Nixon on January 20, 1969; as was customary, he sat down immediately after being sworn in, and did not make a speech. Soon after

3648-456: A minority of Americans opposed the war. Nixon speechwriter Pat Buchanan penned a speech in response, to be delivered by Agnew on November 13 in Des Moines, Iowa . The White House worked to assure the maximum exposure for Agnew's speech, and the networks covered it live, making it a nationwide address, a rarity for vice presidents. According to Witcover, "Agnew made the most of it". Historically,

3840-477: A mobile platform for astronauts conducting an EVA. The RMS was built by the Canadian company Spar Aerospace and was controlled by an astronaut inside the orbiter's flight deck using their windows and closed-circuit television. The RMS allowed for six degrees of freedom and had six joints located at three points along the arm. The original RMS could deploy or retrieve payloads up to 29,000 kg (65,000 lb), which

4032-536: A more conciliatory tone, in line with Nixon's own speeches after taking office. Still, he urged a firm line against violence, stating in a speech in Honolulu on May 2, 1969, that "we have a new breed of self-appointed vigilantes arising—the counterdemonstrators—taking the law into their own hands because officials fail to call law enforcement authorities. We have a vast faceless majority of the American public in quiet fury over

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4224-569: A narrow popular vote plurality – 500,000 out of a total of 73 million votes cast. The Electoral College result was more decisive: Nixon 301, Humphrey 191 and Wallace 46. The Republicans narrowly lost Maryland, but Agnew was credited by pollster Louis Harris with helping his party to victory in several border and Upper South states that might easily have fallen to Wallace—South Carolina, North Carolina, Virginia, Tennessee and Kentucky—and with bolstering Nixon's support in suburbs nationally. Had Nixon lost those five states, he would have had only

4416-528: A partial-pressure version of the high-altitude pressure suits with a helmet. In 1994, the LES was replaced by the full-pressure Advanced Crew Escape Suit (ACES), which improved the safety of the astronauts in an emergency situation. Columbia originally had modified SR-71 zero-zero ejection seats installed for the ALT and first four missions, but these were disabled after STS-4 and removed after STS-9 . The flight deck

4608-517: A partially reusable system would be the most cost-effective solution. The head of the NASA Office of Manned Space Flight, George Mueller , announced the plan for a reusable shuttle on August 10, 1968. NASA issued a request for proposal (RFP) for designs of the Integral Launch and Reentry Vehicle (ILRV) on October 30, 1968. Rather than award a contract based upon initial proposals, NASA announced

4800-459: A perennially unsuccessful candidate for office. Mahoney's candidacy split his party, provoking a third-party candidate, Comptroller of Baltimore City Hyman A. Pressman. In Montgomery County , the state's wealthiest area, a "Democrats for Agnew" organization flourished, and liberals statewide flocked to the Agnew standard. Mahoney, a fierce opponent of integrated housing, exploited racial tensions with

4992-541: A phased approach for the Space Shuttle contracting and development; Phase A was a request for studies completed by competing aerospace companies, Phase B was a competition between two contractors for a specific contract, Phase C involved designing the details of the spacecraft components, and Phase D was the production of the spacecraft. In December 1968, NASA created the Space Shuttle Task Group to determine

5184-481: A port-side hatch that the crew used for entry and exit while on Earth. The airlock is a structure installed to allow movement between two spaces with different gas components, conditions, or pressures. Continuing on the mid-deck structure, each orbiter was originally installed with an internal airlock in the mid-deck. The internal airlock was installed as an external airlock in the payload bay on Discovery , Atlantis , and Endeavour to improve docking with Mir and

5376-509: A range of social and community activities. Historian William Manchester summed up Agnew in those days: "His favorite musician was Lawrence Welk . His leisure interests were all midcult : watching the Baltimore Colts on television, listening to Mantovani , and reading the sort of prose the Reader's Digest liked to condense. He was a lover of order and an almost compulsive conformist." In

5568-737: A replacement officer. After briefly serving as a rifle platoon leader, Agnew commanded the battalion's service company. The battalion became part of Combat Command "B" of the 10th Armored Division , which saw action in the Battle of the Bulge , including the Siege of Bastogne —in all, "thirty-nine days in the hole of the doughnut", as one of Agnew's men put it. Thereafter, the 54th Battalion fought its way into Germany, seeing action at Mannheim , Heidelberg , and Crailsheim , before reaching Garmisch-Partenkirchen in Bavaria as

5760-665: A result of an O-ring failing at low temperature, the SRBs were redesigned to provide a constant seal regardless of the ambient temperature. The Space Shuttle's operations were supported by vehicles and infrastructure that facilitated its transportation, construction, and crew access. The crawler-transporters carried the MLP and the Space Shuttle from the VAB to the launch site. The Shuttle Carrier Aircraft (SCA) were two modified Boeing 747s that could carry an orbiter on its back. The original SCA (N905NA)

5952-486: A roadside stall, while the youthful Spiro helped the family's budget with part-time jobs, delivering groceries and distributing leaflets. As he grew up, Spiro was increasingly influenced by his peers, and began to distance himself from his Greek background. He refused his father's offer to pay for Greek language lessons, and preferred to be known by a nickname, "Ted". In February 1937, Agnew entered Johns Hopkins University at their new Homewood campus in north Baltimore as

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6144-661: A second orbiter. Later that month, Rockwell began converting STA-099 to OV-099, later named Challenger . On January 29, 1979, NASA ordered two additional orbiters, OV-103 and OV-104, which were named Discovery and Atlantis . Construction of OV-105, later named Endeavour , began in February 1982, but NASA decided to limit the Space Shuttle fleet to four orbiters in 1983. After the loss of Challenger , NASA resumed production of Endeavour in September 1987. After it arrived at Edwards AFB, Enterprise underwent flight testing with

6336-536: A senator, he took lessons in Senate procedures from the Parliamentarian and from a Republican committee staffer. He lunched with small groups of senators, and was initially successful in building good relations. Although silenced on foreign policy matters, he attended White House staff meetings and spoke on urban affairs; when Nixon was present, he often presented the perspective of the governors. Agnew earned praise from

6528-645: A separate central processing unit (CPU) and input/output processor (IOP), and non-volatile solid-state memory . From 1991 to 1993, the orbiter vehicles were upgraded to the AP-101S, which improved the memory and processing capabilities, and reduced the volume and weight of the computers by combining the CPU and IOP into a single unit. Four of the GPCs were loaded with the Primary Avionics Software System (PASS), which

6720-503: A series of speeches attacking their political opponents. In New Orleans on October 19, Agnew blamed liberal elites for condoning violence by demonstrators: "a spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals". The following day, in Jackson, Mississippi , Agnew told a Republican dinner, "for too long the South has been

6912-422: A single felony charge of tax evasion and resigned from office. Nixon replaced him with House Republican leader Gerald Ford . Agnew spent the remainder of his life quietly, rarely making public appearances and blaming Zionists for forcing him out of office. He wrote a novel and a memoir, both of which defended his actions. Agnew died at home in 1996 at age 77 of undiagnosed acute leukemia . Spiro Agnew's father

7104-536: A soundtrack of prolonged hysterical laughter that degenerated into a painful cough, before a final message: "This would be funny if it weren't so serious..." Agnew's comments outraged many, but Nixon did not rein him in; such right-wing populism had a strong appeal in the Southern states and was an effective counter to Wallace. Agnew's rhetoric was also popular in some Northern areas, and helped to galvanize "white backlash" into something less racially defined, more attuned to

7296-410: A speech. After STS-4, NASA declared its Space Transportation System (STS) operational. The Space Shuttle was the first operational orbital spacecraft designed for reuse . Each Space Shuttle orbiter was designed for a projected lifespan of 100 launches or ten years of operational life, although this was later extended. At launch, it consisted of the orbiter , which contained the crew and payload,

7488-508: A suitcase of money." Agnew was also criticized over his part-ownership of land close to the site of a planned, but never-built second bridge over Chesapeake Bay . Opponents claimed a conflict of interest, since some of Agnew's partners in the venture were simultaneously involved in business deals with the county. Agnew denied any conflict or impropriety, saying that the property involved was outside Baltimore County and his jurisdiction. Nevertheless, he sold his interest. Agnew's term as governor

7680-569: A suite at the Sheraton Hotel in Washington formerly occupied by Johnson while vice president. Only one of their children, Kim, the youngest daughter, moved there with them, the others remaining in Maryland. During the transition, Agnew hired a staff, choosing several aides who had worked with him as county executive and as governor. He hired Charles Stanley Blair as chief of staff; Blair had been

7872-692: A total of 135 missions from 1981 to 2011. They launched from the Kennedy Space Center (KSC) in Florida . Operational missions launched numerous satellites , interplanetary probes , and the Hubble Space Telescope (HST), conducted science experiments in orbit, participated in the Shuttle- Mir program with Russia, and participated in the construction and servicing of the International Space Station (ISS). The Space Shuttle fleet's total mission time

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8064-505: A total of 14 astronauts killed. A fifth operational (and sixth in total) orbiter, Endeavour , was built in 1991 to replace Challenger . The three surviving operational vehicles were retired from service following Atlantis ' s final flight on July 21, 2011. The U.S. relied on the Russian Soyuz spacecraft to transport astronauts to the ISS from the last Shuttle flight until the launch of

8256-510: A tradition of playing music to astronauts during the Gemini program , which was first used to wake up a flight crew during Apollo 15 . Each track is specially chosen, often by their families, and usually has a special meaning to an individual member of the crew, or is applicable to their daily activities. Space Shuttle The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by

8448-428: A two-part drag parachute system to slow the orbiter after landing. The orbiter used retractable landing gear with a nose landing gear and two main landing gear, each containing two tires. The main landing gear contained two brake assemblies each, and the nose landing gear contained an electro-hydraulic steering mechanism. The Space Shuttle crew varied per mission. They underwent rigorous testing and training to meet

8640-452: Is cooled by 1,080 interior lines carrying liquid hydrogen and is thermally protected by insulative and ablative material. The RS-25 engines had several improvements to enhance reliability and power. During the development program, Rocketdyne determined that the engine was capable of safe reliable operation at 104% of the originally specified thrust. To keep the engine thrust values consistent with previous documentation and software, NASA kept

8832-446: Is not the centuries of racism and deprivation that have built to an explosive crescendo, but ... that lawbreaking has become a socially acceptable and occasionally stylish form of dissent". In March 1968, when faced with a student boycott at Bowie State College , a historically black institution , Agnew again blamed outside agitators and refused to negotiate with the students. When a student committee came to Annapolis and demanded

9024-508: The Columbia disaster . Beginning with STS-114 , the orbiter vehicles were equipped with the wing leading edge impact detection system to alert the crew to any potential damage. The entire underside of the orbiter vehicle, as well as the other hottest surfaces, were protected with tiles of high-temperature reusable surface insulation, made of borosilicate glass -coated silica fibers that trapped heat in air pockets and redirected it out. Areas on

9216-617: The 1968 Liberty Bowl , and to New York to attend the wedding of Nixon's daughter Julie to David Eisenhower . Agnew was a fan of the Baltimore Colts; in January, he was the guest of team owner Carroll Rosenbloom at Super Bowl III , and watched Joe Namath and the New York Jets upset the Colts, 16–7. There was as yet no official residence for the vice president, and Spiro and Judy Agnew secured

9408-749: The Crew Dragon Demo-2 mission in May 2020. In the late 1930s, the German government launched the " Amerikabomber " project, and Eugen Sanger 's idea, together with mathematician Irene Bredt , was a winged rocket called the Silbervogel (German for "silver bird"). During the 1950s, the United States Air Force proposed using a reusable piloted glider to perform military operations such as reconnaissance, satellite attack, and air-to-ground weapons employment. In

9600-558: The ISS , along with the Orbiter Docking System . The airlock module can be fitted in the mid-bay, or connected to it but in the payload bay. With an internal cylindrical volume of 1.60 metres (5 feet 3 inches) diameter and 2.11 metres (6 feet 11 inches) in length, it can hold two suited astronauts. It has two D-shaped hatchways 1.02 m (40 in) long (diameter), and 0.91 m (36 in) wide. The orbiter

9792-574: The Korean War . Agnew resigned from Schreiber's in 1952, and resumed his legal practice, specializing in labor law . In 1955, Barrett was appointed a judge in Towson , the county seat of Baltimore. Agnew moved his office there; at the same time, he moved his family from Lutherville to Loch Raven . There, he led a typical suburban lifestyle, serving as president of the local school district's Parent-Teacher Association , joining Kiwanis , and participating in

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9984-592: The Martin Marietta X-24B . The program tested aerodynamic characteristics that would later be incorporated in design of the Space Shuttle, including unpowered landing from a high altitude and speed. On September 24, 1966, as the Apollo space program neared its design completion, NASA and the Air Force released a joint study concluding that a new vehicle was required to satisfy their respective future demands and that

10176-543: The Shuttle Carrier Aircraft , a Boeing 747 that had been modified to carry the orbiter. In February 1977, Enterprise began the Approach and Landing Tests (ALT) and underwent captive flights, where it remained attached to the Shuttle Carrier Aircraft for the duration of the flight. On August 12, 1977, Enterprise conducted its first glide test, where it detached from the Shuttle Carrier Aircraft and landed at Edwards AFB. After four additional flights, Enterprise

10368-619: The Tracking and Data Relay Satellite System and the Spacecraft Tracking and Data Acquisition Network ground stations to communicate with the orbiter throughout its orbit. Additionally, the orbiter deployed a high-bandwidth K u  band radio out of the cargo bay, which could also be utilized as a rendezvous radar. The orbiter was also equipped with two UHF radios for communications with air traffic control and astronauts conducting EVA. The Space Shuttle's fly-by-wire control system

10560-529: The external tank (ET), and the two solid rocket boosters (SRBs). Responsibility for the Space Shuttle components was spread among multiple NASA field centers. The KSC was responsible for launch, landing, and turnaround operations for equatorial orbits (the only orbit profile actually used in the program). The U.S. Air Force at the Vandenberg Air Force Base was responsible for launch, landing, and turnaround operations for polar orbits (though this

10752-573: The law and order stance he had taken in the wake of civil unrest that year appealed to aides such as Pat Buchanan . Agnew made a number of gaffes during the campaign , but his rhetoric pleased many Republicans, and he may have made the difference in several key states. Nixon and Agnew defeated the Democratic ticket of incumbent vice president Hubert Humphrey and his running mate, Senator Edmund Muskie , and American Independent Party candidates George Wallace and Curtis LeMay . As vice president, Agnew

10944-484: The qualification requirements for their roles. The crew was divided into three categories: Pilots, Mission Specialists, and Payload Specialists. Pilots were further divided into two roles: Space Shuttle Commanders and Space Shuttle Pilots. The test flights only had two members each, the commander and pilot, who were both qualified pilots that could fly and land the orbiter. The on-orbit operations, such as experiments, payload deployment, and EVAs, were conducted primarily by

11136-804: The "ORU Transfer Device" (OTD), a U.S. built crane. Other payloads on STS-96 were the Student Tracked Atmospheric Research Satellite for Heuristic International Networking Equipment ( STARSHINE ), the Shuttle Vibration Forces Experiment (SVF) and the Orbiter Integrated Vehicle Health Monitoring – HEDS Technology Demonstration (IVHM HTD). The STARSHINE satellite consists of an inert, 483 millimetres (19.0 in) hollow sphere covered by 1,000 evenly distributed, flat, polished mirrors, each 1 inch in diameter. The payload consists of

11328-511: The "Rockefeller for President" citizens' committee. When in a televised speech on March 21, 1968, Rockefeller shocked his supporters with an apparently unequivocal withdrawal from the race, Agnew was dismayed and humiliated; despite his very public role in the Rockefeller campaign, he had received no advance warning of the decision. He took this as a personal insult and as a blow to his credibility. Within days of Rockefeller's announcement, Agnew

11520-457: The 1950s, Agnew volunteered for the congressional campaigns of U.S. Representative James Devereux . Agnew made his first bid for political office in 1956, when he sought to be a Republican candidate for Baltimore County Council. He was turned down by local party leaders, but nevertheless campaigned vigorously for the Republican ticket. The election resulted in an unexpected Republican majority on

11712-664: The 1966 election, his record had won him the endorsement of Roy Wilkins , leader of the National Association for the Advancement of Colored People (NAACP). In mid-1967, racial tension was rising nationally, fueled by black discontent and an increasingly assertive civil rights leadership. Several cities exploded in violence, and there were riots in Cambridge, Maryland , after an incendiary speech there on July 24, 1967, by radical student leader H. Rap Brown . Agnew's principal concern

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11904-445: The 2195 aluminum-lithium alloy, which was 40% stronger and 10% less dense than its predecessor, 2219 aluminum-lithium alloy. The SLWT weighed 3,400 kg (7,500 lb) less than the LWT, which allowed the Space Shuttle to deliver heavy elements to ISS's high inclination orbit. The Solid Rocket Boosters (SRB) provided 71.4% of the Space Shuttle's thrust during liftoff and ascent, and were

12096-452: The Air Force required a larger payload capacity than Faget's design allowed. In January 1971, NASA and Air Force leadership decided that a reusable delta-wing orbiter mounted on an expendable propellant tank would be the optimal design for the Space Shuttle. After they established the need for a reusable, heavy-lift spacecraft, NASA and the Air Force determined the design requirements of their respective services. The Air Force expected to use

12288-690: The Democratic primary. By contrast with his elderly opponent, Agnew was able to campaign as a "White Knight" promising change; his program included an anti-discrimination bill requiring public amenities such as parks, bars and restaurants be open to all races, policies that neither Birmingham nor any Maryland Democrat could have introduced at that time without angering supporters. In the November election, despite an intervention by Vice President Lyndon B. Johnson on Birmingham's behalf, Agnew beat his opponent by 78,487 votes to 60,993. When Symington lost to Democrat Clarence Long in his congressional race, Agnew became

12480-518: The ET. The SRBs were jettisoned before the vehicle reached orbit, while the main engines continued to operate, and the ET was jettisoned after main engine cutoff and just before orbit insertion , which used the orbiter's two Orbital Maneuvering System (OMS) engines. At the conclusion of the mission, the orbiter fired its OMS to deorbit and reenter the atmosphere . The orbiter was protected during reentry by its thermal protection system tiles, and it glided as

12672-669: The IMU, INS, and TACAN systems, which first flew on STS-118 in August 2007. While in orbit, the crew primarily communicated using one of four S band radios, which provided both voice and data communications. Two of the ;band radios were phase modulation transceivers , and could transmit and receive information. The other two S band radios were frequency modulation transmitters and were used to transmit data to NASA. As S band radios can operate only within their line of sight , NASA used

12864-419: The IMUs while in orbit. The star trackers are deployed while in orbit, and can automatically or manually align on a star. In 1991, NASA began upgrading the inertial measurement units with an inertial navigation system (INS), which provided more accurate location information. In 1993, NASA flew a GPS receiver for the first time aboard STS-51 . In 1997, Honeywell began developing an integrated GPS/INS to replace

13056-405: The KSC. The Space Shuttle was prepared for launch primarily in the VAB at the KSC. The SRBs were assembled and attached to the external tank on the MLP. The orbiter vehicle was prepared at the Orbiter Processing Facility (OPF) and transferred to the VAB, where a crane was used to rotate it to the vertical orientation and mate it to the external tank. Once the entire stack was assembled, the MLP

13248-482: The Maryland governor as a possible running mate. As Agnew continued to meet with Nixon and with the candidate's senior aides, there was a growing impression that he was moving into the Nixon camp. At the same time, Agnew denied any political ambitions beyond serving his full four-year term as governor. As Nixon prepared for the August 1968 Republican National Convention in Miami Beach , he discussed possible running mates with his staff. Among these were Ronald Reagan ,

13440-447: The Nixon camp such as Pat Buchanan, and also impressed Nixon. When on April 30 Rockefeller re-entered the race, Agnew's reaction was cool. He commended the governor as potentially a "formidable candidate" but did not commit his support: "A lot of things have happened since his withdrawal ... I think I've got to take another look at this situation". In mid-May, Nixon, interviewed by David Broder of The Washington Post , mentioned

13632-403: The November 1960 elections, Agnew decided to seek election to the county circuit court , against the local tradition that sitting judges seeking re-election were not opposed. He was unsuccessful, finishing last of five candidates. This failed attempt raised his profile, and he was regarded by his Democratic opponents as a Republican on the rise. The 1960 elections saw the Democrats win control of

13824-524: The RS-25 experienced multiple nozzle failures, as well as broken turbine blades. Despite the problems during testing, NASA ordered the nine RS-25 engines needed for its three orbiters under construction in May 1978. NASA experienced significant delays in the development of the Space Shuttle's thermal protection system . Previous NASA spacecraft had used ablative heat shields, but those could not be reused. NASA chose to use ceramic tiles for thermal protection, as

14016-465: The Republican Party to help secure the re-election of Nixon and Agnew in 1972, and that Agnew's rhetoric "could have served as the blueprint for the culture wars of the next twenty-to-thirty years, including the claim that Democrats were soft on crime, unpatriotic, and favored flag burning rather than flag waving". The attendees at the speeches were enthusiastic, but other Republicans, especially from

14208-615: The Rev. Sidney Daniels, rebuked the governor: "Talk to us like we are ladies and gentlemen", he said, before walking out. Others followed him; the remnant was treated to further accusations as Agnew rejected all socio-economic explanations for the disturbances. Many white suburbanites applauded Agnew's speech: over 90 percent of the 9,000 responses by phone, letter or telegram supported him, and he won tributes from leading Republican conservatives such as Jack Williams , governor of Arizona, and former senator William Knowland of California. To members of

14400-505: The SRBs provided structural support for the orbiter vehicle and ET, as they were the only system that was connected to the mobile launcher platform (MLP). At the time of launch, the SRBs were armed at T−5 minutes, and could only be electrically ignited once the RS-25 engines had ignited and were without issue. They each provided 12,500 kN (2,800,000 lbf) of thrust, which was later improved to 13,300 kN (3,000,000 lbf) beginning on STS-8 . After expending their fuel,

14592-558: The SRBs were jettisoned approximately two minutes after launch at an altitude of approximately 46 km (150,000 ft). Following separation, they deployed drogue and main parachutes, landed in the ocean, and were recovered by the crews aboard the ships MV Freedom Star and MV Liberty Star . Once they were returned to Cape Canaveral, they were cleaned and disassembled. The rocket motor, igniter, and nozzle were then shipped to Thiokol to be refurbished and reused on subsequent flights. The SRBs underwent several redesigns throughout

14784-518: The STARSHINE satellite, integrated with the Pallet Ejection System (PES), then mounted inside a lidless carrier. The HH equipment consists of one HH Lightweight Avionics Plate (LAP), then mounted inside a lidless carrier. Additional HH equipment consists of one Hitchhiker Ejection System Electronics (HESE), one 5.0 cubic-foot (142 L) HH canister, and one Adapter Beam Assembly (ABA). The purpose of

14976-399: The Space Shuttle through ascent, orbit, and reentry, but could not support an entire mission. The five GPCs were separated in three separate bays within the mid-deck to provide redundancy in the event of a cooling fan failure. After achieving orbit, the crew would switch some of the GPCs functions from guidance, navigation, and control (GNC) to systems management (SM) and payload (PL) to support

15168-519: The Space Shuttle to launch large satellites, and required it to be capable of lifting 29,000 kg (65,000 lb) to an eastward LEO or 18,000 kg (40,000 lb) into a polar orbit . The satellite designs also required that the Space Shuttle have a 4.6 by 18 m (15 by 60 ft) payload bay. NASA evaluated the F-1 and J-2 engines from the Saturn rockets , and determined that they were insufficient for

15360-578: The Spacelab module through a 2.7 or 5.8 m (8.72 or 18.88 ft) tunnel that connected to the airlock. The Spacelab equipment was primarily stored in pallets, which provided storage for both experiments as well as computer and power equipment. Spacelab hardware was flown on 28 missions through 1999 and studied subjects including astronomy, microgravity, radar, and life sciences. Spacelab hardware also supported missions such as Hubble Space Telescope (HST) servicing and space station resupply. The Spacelab module

15552-580: The U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program . Its official program name was Space Transportation System (STS), taken from the 1969 plan led by U.S. Vice President Spiro Agnew for a system of reusable spacecraft where it was the only item funded for development. The first ( STS-1 ) of four orbital test flights occurred in 1981, leading to operational flights ( STS-5 ) beginning in 1982. Five complete Space Shuttle orbiter vehicles were built and flown on

15744-567: The aft seating location, and also controlled the data on the HUD. In 1998, Atlantis was upgraded with the Multifunction Electronic Display System (MEDS), which was a glass cockpit upgrade to the flight instruments that replaced the eight MCDS display units with 11 multifunction colored digital screens. MEDS was flown for the first time in May 2000 on STS-101 , and the other orbiter vehicles were upgraded to it. The aft section of

15936-401: The associated propellant tanks. The AJ10 engines used monomethylhydrazine (MMH) oxidized by dinitrogen tetroxide (N 2 O 4 ). The pods carried a maximum of 2,140 kg (4,718 lb) of MMH and 3,526 kg (7,773 lb) of N 2 O 4 . The OMS engines were used after main engine cut-off (MECO) for orbital insertion. Throughout the flight, they were used for orbit changes, as well as

16128-582: The black community the April 11 meeting was a turning point. Having previously welcomed Agnew's stance on civil rights, they now felt betrayed, one state senator observing: "He has sold us out ... he thinks like George Wallace , he talks like George Wallace". At least until the April 1968 disturbances, Agnew's image was that of a liberal Republican. Since 1964 he had supported the presidential ambitions of Governor Nelson Rockefeller of New York, and early in 1968, with that year's elections looming, he became chairman of

16320-664: The boredom and lack of a role he had sometimes experienced in that office. Nixon initially gave Agnew an office in the West Wing of the White House, a first for a vice president, although in December 1969 it was given to deputy assistant Alexander Butterfield and Agnew had to move to an office in the Executive Office Building . When they stood before the press after the meeting, Nixon pledged that Agnew would not have to undertake

16512-549: The built-in hold at T−9 minutes, the countdown was automatically controlled by the Ground Launch Sequencer (GLS) at the LCC, which stopped the countdown if it sensed a critical problem with any of the Space Shuttle's onboard systems. At T−3 minutes 45 seconds, the engines began conducting gimbal tests, which were concluded at T−2 minutes 15 seconds. The ground Launch Processing System handed off

16704-461: The bulk of the ET, and was 29 m (96.7 ft) tall. The orbiter vehicle was attached to the ET at two umbilical plates, which contained five propellant and two electrical umbilicals, and forward and aft structural attachments. The exterior of the ET was covered in orange spray-on foam to allow it to survive the heat of ascent. The ET provided propellant to the Space Shuttle Main Engines from liftoff until main engine cutoff. The ET separated from

16896-468: The campaign, it emerged that Agnew had failed to report three alleged attempts to bribe him that had been made on behalf of the slot-machine industry, involving sums of $ 20,000, $ 75,000, and $ 200,000, if he would promise not to veto legislation keeping the machines legal in Southern Maryland . He justified his silence on the grounds that no actual offer had been made: "Nobody sat down in front of me with

17088-466: The ceremonial roles usually undertaken by the holders of the vice presidency, but would have "new duties beyond what any vice president has previously assumed". Nixon told the press that he planned to make full use of Agnew's experience as county executive and as governor in dealing with matters of federal-state relations and in urban affairs. Nixon established transition headquarters in New York, but Agnew

17280-554: The cities, complained to the Republican National Committee that Agnew's attacks were overbroad. In the wake of these remarks, Nixon delivered his Silent Majority speech on November 3, 1969, calling on "the great silent majority of my fellow Americans" to support the administration's policy in Vietnam. The speech was well received by the public, but less so by the press, who strongly attacked Nixon's allegations that only

17472-439: The conservative Governor of California ; and the more liberal Mayor of New York City , John Lindsay . Nixon felt that these high-profile names could split the party, with Lindsay in particular unacceptable to Southern conservatives, and looked for a less divisive figure. He did not indicate a preferred choice, and Agnew's name was not raised at this stage. Agnew was intending to go to the convention with his Maryland delegation as

17664-413: The consideration of other candidates was little more than a charade. On August 8, after a final meeting of advisers and party leaders, Nixon declared that Agnew was his choice, and shortly afterwards announced his decision to the press. Delegates formally nominated Agnew for the vice presidency later that day, before adjourning. In his acceptance speech, Agnew told the convention he had "a deep sense of

17856-489: The contract to build the orbiter to North American Rockwell. In August 1973, the external tank contract to Martin Marietta , and in November the solid-rocket booster contract to Morton Thiokol . On June 4, 1974, Rockwell began construction on the first orbiter, OV-101, dubbed Constitution, later to be renamed Enterprise . Enterprise was designed as a test vehicle, and did not include engines or heat shielding. Construction

18048-477: The control to the orbiter vehicle's GPCs at T−31 seconds. At T−16 seconds, the GPCs armed the SRBs, the sound suppression system (SPS) began to drench the MLP and SRB trenches with 1,100,000 L (300,000 U.S. gal) of water to protect the orbiter vehicle from damage by acoustical energy and rocket exhaust reflected from the flame trench and MLP during lift-off. At T−10 seconds, hydrogen igniters were activated under each engine bell to quell

18240-463: The council, and in recognition for his party work, Agnew was appointed for a one-year term to the county Zoning Board of Appeals at a salary of $ 3,600 per year. This quasi-judicial post provided an important supplement to his legal practice, and Agnew welcomed the prestige connected with the appointment. In April 1958, he was reappointed to the Board for a full three-year term and became its chairman. In

18432-586: The county council, and one of their first actions was to remove Agnew from the Zoning Appeals Board. According to Agnew's biographer, Jules Witcover , "The publicity generated by the Democrats' crude dismissal of Agnew cast him as the honest servant wronged by the machine." Seeking to capitalize on this mood, Agnew asked to be nominated as the Republican candidate in the 1962 U.S. congressional elections, in Maryland's 2nd congressional district . The party chose

18624-419: The county's Democrats had healed their rift. Instead, in 1966 he sought the Republican nomination for governor, and with the backing of party leaders won the April primary by a wide margin. In the Democratic party, three candidates—a moderate, a liberal, and an outright segregationist—battled for their party's gubernatorial nomination, which to general surprise was won by the segregationist George P. Mahoney,

18816-421: The deorbit burn prior to reentry. Each OMS engine produced 27,080 N (6,087 lbf) of thrust, and the entire system could provide 305 m/s (1,000 ft/s) of velocity change . The orbiter was protected from heat during reentry by the thermal protection system (TPS), a thermal soaking protective layer around the orbiter. In contrast with previous US spacecraft, which had used ablative heat shields,

19008-507: The development of a space shuttle to bring people and cargo to low Earth orbit (LEO), as well as a space tug for transfers between orbits and the Moon, and a reusable nuclear upper stage for deep space travel. After the release of the Space Shuttle Task Group report, many aerospace engineers favored the Class III, fully reusable design because of perceived savings in hardware costs. Max Faget ,

19200-650: The ease of refurbishing them for reuse after they landed in the ocean. In January 1972, President Richard Nixon approved the Shuttle, and NASA decided on its final design in March. The development of the Space Shuttle Main Engine (SSME) remained the responsibility of Rocketdyne, and the contract was issued in July 1971, and updated SSME specifications were submitted to Rocketdyne in that April. That August, NASA awarded

19392-479: The effects of aerodynamic and thermal stresses during launch and reentry. The beginning of the development of the RS-25 Space Shuttle Main Engine was delayed for nine months while Pratt & Whitney challenged the contract that had been issued to Rocketdyne. The first engine was completed in March 1975, after issues with developing the first throttleable, reusable engine. During engine testing,

19584-499: The engines during powered flight and fly the orbiter during unpowered flight. Both seats also had rudder controls, to allow rudder movement in flight and nose-wheel steering on the ground. The orbiter vehicles were originally installed with the Multifunction CRT Display System (MCDS) to display and control flight information. The MCDS displayed the flight information at the commander and pilot seats, as well as at

19776-473: The eventual Orbiter upgrade IVHM. The objective of IVHM was to reduce planned ground processing, streamline problem troubleshooting (unplanned ground processing), enhance visibility into systems operation and improve overall vehicle safety. A copy of Blizzard Entertainment's StarCraft real-time strategy game was also flown aboard STS-96. It resides at Blizzard's headquarters in Irvine, California. NASA began

19968-754: The existing brackets used to attach the 5 ft (1.5 m) standard canister to the side wall GAS adapter beam. The payload was activated automatically by the Orbiter Lift-off vibration and operated for approximately 100 seconds. STS-96 was the second flight of the SVF experiment. The purpose of the Orbiter Integrated Vehicle Health Monitoring- HEDS Technology Demonstration ( IVHM HTD) was to demonstrate competing modern, off-the-shelf sensing technologies in an operational environment to make informed design decisions for

20160-622: The family to a house in the Forest Park northwest section of the city, where Spiro attended Garrison Junior High School and later Forest Park High School . This period of affluence ended with the crash of 1929 , and the restaurant closed. In 1931, the family's savings were wiped out when a local bank failed, forcing them to sell the house and move to a small apartment. Agnew later recalled how his father responded to these misfortunes: "He just shrugged it off and went to work with his hands without complaint." Theodore Agnew sold fruit and vegetables from

20352-565: The family, and a strong influence on his son. When in 1969, after his vice presidential inauguration, Baltimore's Greek community endowed a scholarship in Theodore Agnew's name, Spiro Agnew told the gathering: "I am proud to say that I grew up in the light of my father. My beliefs are his." During the early 1920s, the Agnews prospered. Theodore acquired a larger restaurant, the Piccadilly, and moved

20544-592: The feasibility of reusable boosters. This became the basis for the aerospaceplane , a fully reusable spacecraft that was never developed beyond the initial design phase in 1962–1963. Beginning in the early 1950s, NASA and the Air Force collaborated on developing lifting bodies to test aircraft that primarily generated lift from their fuselages instead of wings, and tested the NASA M2-F1 , Northrop M2-F2 , Northrop M2-F3 , Northrop HL-10 , Martin Marietta X-24A , and

20736-649: The final decision to scrub a launch was announced. In addition to the weather at the launch site, conditions had to be acceptable at one of the Transatlantic Abort Landing sites and the SRB recovery area. The mission crew and the Launch Control Center (LCC) personnel completed systems checks throughout the countdown. Two built-in holds at T−20 minutes and T−9 minutes provided scheduled breaks to address any issues and additional preparation. After

20928-411: The fire department had responded to 1,200 fires, and there had been widespread looting. On April 11, Agnew summoned more than 100 moderate black leaders to the state capitol , where instead of the expected constructive dialogue he delivered a speech roundly castigating them for their failure to control more radical elements, and accused them of a cowardly retreat or even complicity. One of the delegates,

21120-518: The first four Shuttle missions, astronauts wore modified U.S. Air Force high-altitude full-pressure suits, which included a full-pressure helmet during ascent and descent. From the fifth flight, STS-5 , until the loss of Challenger , the crew wore one-piece light blue nomex flight suits and partial-pressure helmets. After the Challenger disaster, the crew members wore the Launch Entry Suit (LES),

21312-483: The first such laws passed south of the Mason–Dixon line . Agnew's attempt to adopt a new state constitution was rejected by the voters in a referendum. For the most part, Agnew remained somewhat aloof from the state legislature, preferring the company of businessmen. Some of these had been associates in his county executive days, such as Lester Matz and Walter Jones, who had been among the first to encourage him to seek

21504-476: The first time NASA performed a crewed first-flight of a spacecraft. On April 12, 1981, the Space Shuttle launched for the first time, and was piloted by John Young and Robert Crippen . During the two-day mission, Young and Crippen tested equipment on board the shuttle, and found several of the ceramic tiles had fallen off the top side of the Columbia . NASA coordinated with the Air Force to use satellites to image

21696-624: The flight deck contained windows looking into the payload bay, as well as an RHC to control the Remote Manipulator System during cargo operations. Additionally, the aft flight deck had monitors for a closed-circuit television to view the cargo bay. The mid-deck contained the crew equipment storage, sleeping area, galley, medical equipment, and hygiene stations for the crew. The crew used modular lockers to store equipment that could be scaled depending on their needs, as well as permanently installed floor compartments. The mid-deck contained

21888-491: The forward separation motors and the parachute systems that were used during recovery. The rocket nozzles could gimbal up to 8° to allow for in-flight adjustments. The rocket motors were each filled with a total 500,000 kg (1,106,640 lb) of solid rocket propellant ( APCP + PBAN ), and joined in the Vehicle Assembly Building (VAB) at KSC. In addition to providing thrust during the first stage of launch,

22080-411: The governorship. Agnew's close ties to the business community were noted by officials in the state capital of Annapolis : "There always seemed to be people around him who were in business." Some suspected that, while not himself corrupt, he "allowed himself to be used by the people around him." Agnew publicly supported civil rights, but deplored the militant tactics used by some black leaders. During

22272-411: The highest-ranking Republican in Maryland. Agnew's four-year term as county executive saw a moderately progressive administration, which included the building of new schools, increases to teachers' salaries, reorganization of the police department, and improvements to the water and sewer systems. His anti-discrimination bill passed, and gave him a reputation as a liberal, but its impact was limited in

22464-472: The improbability of this moment". Agnew was not yet a national figure, and a widespread reaction to the nomination was "Spiro who?" In Atlanta , three pedestrians gave their reactions to the name when interviewed on television: "It's some kind of disease"; "It's some kind of egg"; "He's a Greek that owns that shipbuilding firm." In 1968, the Nixon–Agnew ticket faced two principal opponents. The Democrats, at

22656-605: The inauguration, Nixon appointed Agnew as head of the Office of Intergovernmental Relations , to head government commissions such as the National Space Council and assigned him to work with state governors to bring down crime. It became clear that Agnew would not be in the inner circle of advisors. The new president preferred to deal directly with only a trusted handful, and was annoyed when Agnew tried to call him about matters Nixon deemed trivial. After Agnew shared his opinions on

22848-402: The inner leading edge and 45° at the outer leading edge. Each wing had an inboard and outboard elevon to provide flight control during reentry, along with a flap located between the wings, below the engines to control pitch . The orbiter's vertical stabilizer was swept backwards at 45° and contained a rudder that could split to act as a speed brake . The vertical stabilizer also contained

23040-504: The largest solid-propellant motors ever flown. Each SRB was 45 m (149.2 ft) tall and 3.7 m (12.2 ft) wide, weighed 68,000 kg (150,000 lb), and had a steel exterior approximately 13 mm (.5 in) thick. The SRB's subcomponents were the solid-propellant motor, nose cone, and rocket nozzle. The solid-propellant motor comprised the majority of the SRB's structure. Its casing consisted of 11 steel sections which made up its four main segments. The nose cone housed

23232-510: The late 1950s, the Air Force began developing the partially reusable X-20 Dyna-Soar . The Air Force collaborated with NASA on the Dyna-Soar and began training six pilots in June 1961. The rising costs of development and the prioritization of Project Gemini led to the cancellation of the Dyna-Soar program in December 1963. In addition to the Dyna-Soar, the Air Force had conducted a study in 1957 to test

23424-486: The launch pad, the Space Shuttle was used to verify the proper positioning of the launch complex hardware. Enterprise was taken back to California in August 1979, and later served in the development of the SLC-6 at Vandenberg AFB in 1984. On November 24, 1980, Columbia was mated with its external tank and solid-rocket boosters, and was moved to LC-39 on December 29. The first Space Shuttle mission, STS-1 , would be

23616-569: The minimum number of electoral votes needed, 270, and any defection by an elector would have thrown the election to the Democrat-controlled House of Representatives. Immediately after the 1968 election, Agnew was still uncertain what Nixon would expect of him as vice president. He met with Nixon several days after the election in Key Biscayne, Florida . Nixon, vice president himself for eight years under Eisenhower, wanted to spare Agnew

23808-437: The mission specialists who were specifically trained for their intended missions and systems. Early in the Space Shuttle program, NASA flew with payload specialists, who were typically systems specialists who worked for the company paying for the payload's deployment or operations. The final payload specialist, Gregory B. Jarvis , flew on STS-51-L , and future non-pilots were designated as mission specialists. An astronaut flew as

24000-560: The mission was to train international student volunteer observers to visually track this optically reflective spacecraft during morning and evening twilight intervals for several months, calculate its orbit from shared observations, and derive atmospheric density from drag-induced changes in its orbit over time. The Shuttle Vibration Forces (SVF) Experiment provided flight measurements of the vibratory forces acting between an aerospace payload and its mounting structure. The force transducers were incorporated into four custom brackets which replaced

24192-546: The moderate California senator Thomas Kuchel , a candidacy that, Witcover remarks, "died stillborn". After the failure of moderate Pennsylvania Governor William Scranton 's candidacy at the party convention , Agnew gave his reluctant support to Goldwater, but privately opined that the choice of so extremist a candidate had cost the Republicans any chance of victory. As his four-year term as executive neared its end, Agnew knew that his chances of re-election were slim, given that

24384-496: The more experienced J. Fife Symington , but wanted to take advantage of Agnew's local support. He accepted their invitation to run for county executive, the county's chief executive officer; Democrats had held the executive's post and its predecessor, chairman of the board of county commissioners, since 1895. Agnew's chances in 1962 were boosted by a feud in the Democratic ranks, as the retired former county executive, Michael Birmingham, fell out with his successor and defeated him in

24576-549: The news media. Television network executives and commentators responded with outrage. Julian Goodman , president of NBC , stated that Agnew had made an "appeal to prejudice ... it is regrettable that the Vice President of the United States should deny to TV freedom of the press". Frank Stanton , head of CBS , accused Agnew of trying to intimidate the news media, and his news anchor, Walter Cronkite , agreed. The speech

24768-434: The operational mission. The Space Shuttle was not launched if its flight would run from December to January, as its flight software would have required the orbiter vehicle's computers to be reset at the year change. In 2007, NASA engineers devised a solution so Space Shuttle flights could cross the year-end boundary. Space Shuttle missions typically brought a portable general support computer (PGSC) that could integrate with

24960-424: The optimal design for a reusable spacecraft, and issued study contracts to General Dynamics , Lockheed , McDonnell Douglas , and North American Rockwell . In July 1969, the Space Shuttle Task Group issued a report that determined the Shuttle would support short-duration crewed missions and space station, as well as the capabilities to launch, service, and retrieve satellites. The report also created three classes of

25152-436: The orange foam itself was sufficiently protected, and the ET was no longer covered in latex paint beginning on STS-3. A light-weight tank (LWT) was first flown on STS-6, which reduced tank weight by 4,700 kg (10,300 lb). The LWT's weight was reduced by removing components from the hydrogen tank and reducing the thickness of some skin panels. In 1998, a super light-weight ET (SLWT) first flew on STS-91 . The SLWT used

25344-437: The orbiter vehicle 18 seconds after engine cutoff and could be triggered automatically or manually. At the time of separation, the orbiter vehicle retracted its umbilical plates, and the umbilical cords were sealed to prevent excess propellant from venting into the orbiter vehicle. After the bolts attached at the structural attachments were sheared, the ET separated from the orbiter vehicle. At the time of separation, gaseous oxygen

25536-467: The orbiter vehicle and would be removed and replaced in between flights. The RS-25 is a staged-combustion cycle cryogenic engine that used liquid oxygen and hydrogen and had a higher chamber pressure than any previous liquid-fueled rocket. The original main combustion chamber operated at a maximum pressure of 226.5 bar (3,285 psi). The engine nozzle is 287 cm (113 in) tall and has an interior diameter of 229 cm (90.3 in). The nozzle

25728-500: The orbiter vehicle's computers and communication suite, as well as monitor scientific and payload data. Early missions brought the Grid Compass , one of the first laptop computers, as the PGSC, but later missions brought Apple and Intel laptops. The payload bay comprised most of the orbiter vehicle's fuselage , and provided the cargo-carrying space for the Space Shuttle's payloads. It

25920-535: The orbiter vehicle's heat, and were opened upon reaching orbit for heat rejection. The orbiter could be used in conjunction with a variety of add-on components depending on the mission. This included orbital laboratories, boosters for launching payloads farther into space, the Remote Manipulator System (RMS), and optionally the EDO pallet to extend the mission duration. To limit the fuel consumption while

26112-512: The orbiter was docked at the ISS, the Station-to-Shuttle Power Transfer System (SSPTS) was developed to convert and transfer station power to the orbiter. The SSPTS was first used on STS-118, and was installed on Discovery and Endeavour . The Remote Manipulator System (RMS), also known as Canadarm, was a mechanical arm attached to the cargo bay. It could be used to grasp and manipulate payloads, as well as serve as

26304-544: The originally specified thrust at 100%, but had the RS-25 operate at higher thrust. RS-25 upgrade versions were denoted as Block I and Block II. 109% thrust level was achieved with the Block II engines in 2001, which reduced the chamber pressure to 207.5 bars (3,010 psi), as it had a larger throat area. The normal maximum throttle was 104 percent, with 106% or 109% used for mission aborts. The Orbital Maneuvering System (OMS) consisted of two aft-mounted AJ10-190 engines and

26496-605: The other members when he presided over a meeting of the White House Domestic Council in Nixon's absence but, like Nixon during Eisenhower's illnesses, did not sit in the president's chair. Nevertheless, many of the commission assignments Nixon gave Agnew were sinecures , with the vice president only formally the head. The public image of Agnew as an uncompromising critic of the violent protests that had marked 1968 persisted into his vice presidency. At first, he tried to take

26688-438: The party's Northern liberals but played well in the South. John Mitchell , Nixon's campaign manager, was impressed, some other party leaders less so; Senator Thruston Morton described Agnew as an "asshole". Throughout September, Agnew was in the news, generally as a result of what one reporter called his "offensive and sometimes dangerous banality". He used the derogatory term "Polack" to describe Polish-Americans, referred to

26880-486: The press had enjoyed considerable prestige and respect to that point, though some Republicans complained of bias. But in his Des Moines speech, Agnew attacked the media, complaining that immediately after Nixon's speech, "his words and policies were subjected to instant analysis and querulous criticism ... by a small band of network commentators and self-appointed analysts, the majority of whom expressed in one way or another their hostility to what he had to say ... It

27072-405: The program's lifetime. STS-6 and STS-7 used SRBs 2,300 kg (5,000 lb) lighter due to walls that were 0.10 mm (.004 in) thinner, but were determined to be too thin to fly safely. Subsequent flights until STS-26 used cases that were 0.076 mm (.003 in) thinner than the standard-weight cases, which reduced 1,800 kg (4,000 lb). After the Challenger disaster as

27264-400: The propellant for the Space Shuttle Main Engines, and connected the orbiter vehicle with the solid rocket boosters. The ET was 47 m (153.8 ft) tall and 8.4 m (27.6 ft) in diameter, and contained separate tanks for liquid oxygen and liquid hydrogen. The liquid oxygen tank was housed in the nose of the ET, and was 15 m (49.3 ft) tall. The liquid hydrogen tank comprised

27456-422: The punching bag for those who characterize themselves as liberal intellectuals  ... their course is a course that will ultimately weaken and erode the very fiber of America." Denying Republicans had a Southern Strategy , Agnew stressed that the administration and Southern whites had much in common, including the disapproval of the elites. Levy argued that such remarks were designed to attract Southern whites to

27648-461: The requirements of the Space Shuttle; in July 1971, it issued a contract to Rocketdyne to begin development on the RS-25 engine. NASA reviewed 29 potential designs for the Space Shuttle and determined that a design with two side boosters should be used, and the boosters should be reusable to reduce costs. NASA and the Air Force elected to use solid-propellant boosters because of the lower costs and

27840-562: The restaurant. After Pollard died in April 1917, Agnew and Margaret Pollard began a courtship which led to their marriage on December 12, 1917. Spiro Agnew was born 11 months later, on November 9, 1918. Margaret Pollard, born Margaret Marian Akers in Bristol, Virginia , in 1883, was the youngest in a family of 10 children. As a young adult she moved to Washington, D.C., and found employment in various government offices before marrying Pollard and moving to Baltimore. The Pollards had one son, Roy, who

28032-682: The reusability of the orbiter required a multi-use heat shield. During reentry, the TPS experienced temperatures up to 1,600 °C (3,000 °F), but had to keep the orbiter vehicle's aluminum skin temperature below 180 °C (350 °F). The TPS primarily consisted of four types of tiles. The nose cone and leading edges of the wings experienced temperatures above 1,300 °C (2,300 °F), and were protected by reinforced carbon-carbon tiles (RCC). Thicker RCC tiles were developed and installed in 1998 to prevent damage from micrometeoroid and orbital debris , and were further improved after RCC damage caused in

28224-494: The senator from South Carolina, told a party meeting that he held a veto on the vice presidency. It was evident that Nixon wanted a centrist, though there was little enthusiasm when he first proposed Agnew, and other possibilities were discussed. Agnew was seen as a candidate who could appeal to Rockefeller Republicans, was acceptable to Southern Conservatives, and had a solid law-and-order record. Some party insiders thought that Nixon had privately settled on Agnew early on, and that

28416-529: The shuttle could then be constructed of lightweight aluminum , and the tiles could be individually replaced as needed. Construction began on Columbia on March 27, 1975, and it was delivered to the KSC on March 25, 1979. At the time of its arrival at the KSC, Columbia still had 6,000 of its 30,000 tiles remaining to be installed. However, many of the tiles that had been originally installed had to be replaced, requiring two years of installation before Columbia could fly. On January 5, 1979, NASA commissioned

28608-465: The situation— and with good reason ." On October 14, 1969, the day before the anti-war Moratorium , North Vietnamese premier Pham Van Dong released a letter supporting demonstrations in the United States. Nixon resented this, but on the advice of his aides, thought it best to say nothing, and instead had Agnew give a press conference at the White House, calling upon the Moratorium protesters to disavow

28800-456: The slogan: "Your Home is Your Castle. Protect it!" Agnew painted him as the candidate of the Ku Klux Klan , and said voters must choose "between the bright, pure, courageous flame of righteousness and the fiery cross". In the November election Agnew, helped by 70 percent of the black vote, beat Mahoney by 455,318 votes (49.5 percent) to 373,543, with Pressman taking 90,899 votes. After

28992-445: The stagnant gas inside the cones before ignition. Failure to burn these gases could trip the onboard sensors and create the possibility of an overpressure and explosion of the vehicle during the firing phase. The hydrogen tank's prevalves were opened at T−9.5 seconds in preparation for engine start. Spiro Agnew Spiro Theodore Agnew ( / ˈ s p ɪər oʊ ˈ æ ɡ n juː / ; November 9, 1918 – September 17, 1996)

29184-488: The suburban ethic defined by historian Peter B. Levy as "orderliness, personal responsibility, the sanctity of hard work, the nuclear family, and law and order". In late October, Agnew survived an exposé in The New York Times that questioned his financial dealings in Maryland, with Nixon denouncing the paper for "the lowest kind of gutter politics". In the election on November 5, the Republicans were victorious, with

29376-534: The support of the North Vietnamese. Agnew handled the task well, and Nixon tasked Agnew with attacking the Democrats generally, while remaining above the fray himself. This was analogous to the role Nixon had performed as vice president in the Eisenhower White House; thus Agnew was dubbed "Nixon's Nixon". Agnew had finally found a role in the Nixon administration, one he enjoyed. Nixon had Agnew deliver

29568-702: The time of the marriage, Agnew had been drafted into the United States Army. Shortly after the attack on Pearl Harbor in December 1941, he began basic training at Camp Croft in South Carolina . There, he met people from a variety of backgrounds: "I had led a very sheltered life—I became unsheltered very quickly." Eventually, Agnew was sent to the Officer Candidate School at Fort Knox in Kentucky , and on May 24, 1942—three days before his wedding—he

29760-418: The underside of Columbia , and determined there was no damage. Columbia reentered the atmosphere and landed at Edwards AFB on April 14. NASA conducted three additional test flights with Columbia in 1981 and 1982. On July 4, 1982, STS-4 , flown by Ken Mattingly and Henry Hartsfield , landed on a concrete runway at Edwards AFB. President Ronald Reagan and his wife Nancy met the crew, and delivered

29952-467: The upper parts of the orbiter vehicle were coated in tiles of white low-temperature reusable surface insulation with similar composition, which provided protection for temperatures below 650 °C (1,200 °F). The payload bay doors and parts of the upper wing surfaces were coated in reusable Nomex felt surface insulation or in beta cloth , as the temperature there remained below 370 °C (700 °F). The Space Shuttle external tank (ET) carried

30144-582: The vice president exposed. Agnew's pride had been stung by the negative news coverage of him during the campaign, and he sought to bolster his reputation by assiduous performance of his duties. It had become usual for the vice president to preside over the Senate only if he might be needed to break a tie, but Agnew opened every session for the first two months of his term, and spent more time presiding, in his first year, than any vice president since Alben Barkley , who held that role under Harry S. Truman . The first postwar vice president not to have previously been

30336-744: The war concluded. Agnew returned home for discharge in November 1945, having been awarded the Combat Infantryman Badge and the Bronze Star . On return to civilian life, Agnew resumed his legal studies, and secured a job as a law clerk with the Baltimore firm of Smith and Barrett. Until that time, Agnew had been largely non-political; his nominal allegiance had been to the Democratic Party , following his father's beliefs. The firm's senior partner, Lester Barrett, advised Agnew that if he wanted

30528-512: Was 1,323 days. Space Shuttle components include the Orbiter Vehicle (OV) with three clustered Rocketdyne RS-25 main engines, a pair of recoverable solid rocket boosters (SRBs), and the expendable external tank (ET) containing liquid hydrogen and liquid oxygen . The Space Shuttle was launched vertically , like a conventional rocket, with the two SRBs operating in parallel with the orbiter's three main engines , which were fueled from

30720-479: Was 10 years old when Pollard died. After the marriage to Agnew in 1917 and Spiro's birth the following year, the new family settled in a small apartment at 226 West Madison Street, near downtown Baltimore. In accordance with his mother's wishes, the infant Spiro was baptized as an Episcopalian , rather than into the Greek Orthodox Church of his father. Nevertheless, Theodore was the dominant figure within

30912-462: Was 18 m (60 ft) long and 4.6 m (15 ft) wide, and could accommodate cylindrical payloads up to 4.6 m (15 ft) in diameter. Two payload bay doors hinged on either side of the bay, and provided a relatively airtight seal to protect payloads from heating during launch and reentry. Payloads were secured in the payload bay to the attachment points on the longerons . The payload bay doors served an additional function as radiators for

31104-490: Was Space Shuttle-specific software that provided control through all phases of flight. During ascent, maneuvering, reentry, and landing, the four PASS GPCs functioned identically to produce quadruple redundancy and would error check their results. In case of a software error that would cause erroneous reports from the four PASS GPCs, a fifth GPC ran the Backup Flight System, which used a different program and could control

31296-611: Was a campaign aide for U.S. Representative James Devereux in the 1950s, and was appointed to the Baltimore County Board of Zoning Appeals in 1957. In 1962, he was elected Baltimore county executive . In 1966, Agnew was elected governor of Maryland , defeating his Democratic opponent George P. Mahoney and independent candidate Hyman A. Pressman . At the 1968 Republican National Convention , Richard Nixon asked Agnew to place his name in nomination, and named him as running mate. Agnew's centrist reputation interested Nixon;

31488-680: Was a logistics and resupply mission for the International Space Station carrying the Spacehab Double Module (DM) 13th Spacehab overall (6th dual module use). Space Shuttle Discovery carried to the ISS an Integrated Cargo Carrier (ICC) with parts for the Russian cargo crane STRELA , which was mounted to the exterior of the Russian station segment. Furthermore, the ICC carried the SPACEHAB Oceaneering Space System Box (SHOSS) and

31680-618: Was a modified airport jet bridge that was used to assist astronauts to egress from the orbiter after landing, where they would undergo their post-mission medical checkups. The Astrovan transported astronauts from the crew quarters in the Operations and Checkout Building to the launch pad on launch day. The NASA Railroad comprised three locomotives that transported SRB segments from the Florida East Coast Railway in Titusville to

31872-452: Was being wooed by supporters of the former vice president Richard Nixon, whose campaign for the Republican nomination was well under way. Agnew had no antagonism towards Nixon, and in the wake of Rockefeller's withdrawal had indicated that Nixon might be his "second choice". When the two met in New York on March 29 they found an easy rapport. Agnew's words and actions after the April disturbances in Baltimore delighted conservative members of

32064-501: Was born Theophrastos Anagnostopoulos in about 1877, in the Greek town of Gargalianoi , Messenia . The family may have been involved in olive growing and been impoverished during a crisis in the industry in the 1890s. Anagnostopoulos emigrated to the United States in 1897 (some accounts say 1902) and settled in Schenectady, New York , where he changed his name to Theodore Agnew and opened

32256-414: Was carried for 5.6 km (3.5 mi) to Launch Complex 39 by one of the crawler-transporters . After the Space Shuttle arrived at one of the two launchpads, it would connect to the Fixed and Rotation Service Structures, which provided servicing capabilities, payload insertion, and crew transportation. The crew was transported to the launch pad at T−3 hours and entered the orbiter vehicle, which

32448-565: Was closed at T−2 hours. Liquid oxygen and hydrogen were loaded into the external tank via umbilicals that attached to the orbiter vehicle, which began at T−5 hours 35 minutes. At T−3 hours 45 minutes, the hydrogen fast-fill was complete, followed 15 minutes later by the oxygen tank fill. Both tanks were slowly filled up until the launch as the oxygen and hydrogen evaporated. The launch commit criteria considered precipitation, temperatures, cloud cover, lightning forecast, wind, and humidity. The Space Shuttle

32640-424: Was commissioned as a second lieutenant . After a two-day honeymoon, Agnew returned to Fort Knox. He served there, or at nearby Fort Campbell , for nearly two years in a variety of administrative roles, before being sent to England in March 1944 as part of the pre- D-Day build-up. He remained on standby in Birmingham until late in the year, when he was posted to the 54th Armored Infantry Battalion in France as

32832-512: Was completed on September 17, 1976, and Enterprise was moved to the Edwards Air Force Base to begin testing. Rockwell constructed the Main Propulsion Test Article (MPTA)-098 , which was a structural truss mounted to the ET with three RS-25 engines attached. It was tested at the National Space Technology Laboratory (NSTL) to ensure that the engines could safely run through the launch profile. Rockwell conducted mechanical and thermal stress tests on Structural Test Article (STA)-099 to determine

33024-401: Was determined to give Agnew a much freer rein and to make it clear his running mate had his support. Agnew could also usefully play an "attack dog" role, as Nixon had in 1952. Initially, Agnew played the centrist, pointing to his civil rights record in Maryland. As the campaign developed, he quickly adopted a more belligerent approach, with strong law-and-order rhetoric, a style which alarmed

33216-416: Was entirely reliant on its main computer, the Data Processing System (DPS). The DPS controlled the flight controls and thrusters on the orbiter, as well as the ET and SRBs during launch. The DPS consisted of five general-purpose computers (GPC), two magnetic tape mass memory units (MMUs), and the associated sensors to monitor the Space Shuttle components. The original GPC used was the IBM AP-101B , which used

33408-657: Was equipped with an avionics system to provide information and control during atmospheric flight. Its avionics suite contained three microwave scanning beam landing systems , three gyroscopes , three TACANs , three accelerometers , two radar altimeters , two barometric altimeters , three attitude indicators , two Mach indicators , and two Mode C transponders . During reentry, the crew deployed two air data probes once they were traveling slower than Mach 5. The orbiter had three inertial measuring units (IMU) that it used for guidance and navigation during all phases of flight. The orbiter contains two star trackers to align

33600-469: Was first flown in 1975, and was used for the ALT and ferrying the orbiter from Edwards AFB to the KSC on all missions prior to 1991. A second SCA (N911NA) was acquired in 1988, and was first used to transport Endeavour from the factory to the KSC. Following the retirement of the Space Shuttle, N905NA was put on display at the JSC, and N911NA was put on display at the Joe Davies Heritage Airpark in Palmdale, California . The Crew Transport Vehicle (CTV)

33792-484: Was investigated by the United States Attorney for the District of Maryland on suspicion of criminal conspiracy , bribery, extortion, and tax fraud . Agnew took kickbacks from contractors during his time as Baltimore county executive and governor of Maryland . The payments had continued into his time as vice president, but had nothing to do with the Watergate scandal , in which he was not implicated. After months of maintaining his innocence, Agnew pleaded no contest to

33984-403: Was later improved to 270,000 kg (586,000 lb). The Spacelab module was a European-funded pressurized laboratory that was carried within the payload bay and allowed for scientific research while in orbit. The Spacelab module contained two 2.7 m (9 ft) segments that were mounted in the aft end of the payload bay to maintain the center of gravity during flight. Astronauts entered

34176-406: Was located below the flight deck and was where the galley and crew bunks were set up, as well as three or four crew member seats. The mid-deck contained the airlock, which could support two astronauts on an extravehicular activity (EVA), as well as access to pressurized research modules. An equipment bay was below the mid-deck, which stored environmental control and waste management systems. On

34368-421: Was marked by an agenda which included tax reform, clean water regulations, and the repeal of laws against interracial marriage. Community health programs were expanded, as were higher educational and employment opportunities for those on low incomes. Steps were taken towards ending segregation in schools. Agnew's fair housing legislation was limited, applying only to new projects above a certain size. These were

34560-442: Was moved to the Marshall Space Flight Center (MSFC) on March 13, 1978. Enterprise underwent shake tests in the Mated Vertical Ground Vibration Test, where it was attached to an external tank and solid rocket boosters, and underwent vibrations to simulate the stresses of launch. In April 1979, Enterprise was taken to the KSC, where it was attached to an external tank and solid rocket boosters, and moved to LC-39 . Once installed at

34752-471: Was never used). The Johnson Space Center (JSC) served as the central point for all Shuttle operations and the MSFC was responsible for the main engines, external tank, and solid rocket boosters. The John C. Stennis Space Center handled main engine testing, and the Goddard Space Flight Center managed the global tracking network. The orbiter had design elements and capabilities of both a rocket and an aircraft to allow it to launch vertically and then land as

34944-428: Was not invited to meet with him there until November 27, when the two met for an hour. When Agnew spoke to reporters afterwards, he stated that he felt "exhilarated" with his new responsibilities, but did not explain what those were. During the transition period, Agnew traveled extensively, enjoying his new status. He vacationed on St. Croix , where he played a round of golf with Humphrey and Muskie. He went to Memphis for

35136-422: Was not launched under conditions where it could have been struck by lightning , as its exhaust plume could have triggered lightning by providing a current path to ground after launch, which occurred on Apollo 12 . The NASA Anvil Rule for a Shuttle launch stated that an anvil cloud could not appear within a distance of 19  km (10 nmi). The Shuttle Launch Weather Officer monitored conditions until

35328-415: Was obvious that their minds were made up in advance." Agnew continued, "I am asking whether a form of censorship already exists when the news that forty million Americans receive each night is determined by a handful of men ... and filtered through a handful of commentators who admit their own set of biases". Agnew thus put into words feelings that many Republicans and conservatives had long felt about

35520-444: Was often called upon to attack the administration's enemies. In the years of his vice presidency, Agnew moved to the right, appealing to conservatives who were suspicious of moderate stances taken by Nixon. In the presidential election of 1972 , Nixon and Agnew were re-elected for a second term, defeating Senator George McGovern and his running mate Sargent Shriver in one of the largest landslides in American history. In 1973, Agnew

35712-418: Was tested on STS-2 and STS-3, and the first full mission was on STS-9. Three RS-25 engines, also known as the Space Shuttle Main Engines (SSME), were mounted on the orbiter's aft fuselage in a triangular pattern. The engine nozzles could gimbal ±10.5° in pitch, and ±8.5° in yaw during ascent to change the direction of their thrust to steer the Shuttle. The titanium alloy reusable engines were independent of

35904-399: Was the 39th vice president of the United States , serving from 1969 until his resignation in 1973. He is the second of two vice presidents to resign the position, the first being John C. Calhoun in 1832. Agnew was born in Baltimore to a Greek immigrant father and an American mother. He attended Johns Hopkins University and graduated from the University of Baltimore School of Law . He

36096-444: Was the top level of the crew compartment and contained the flight controls for the orbiter. The commander sat in the front left seat, and the pilot sat in the front right seat, with two to four additional seats set up for additional crew members. The instrument panels contained over 2,100 displays and controls, and the commander and pilot were both equipped with a heads-up display (HUD) and a Rotational Hand Controller (RHC) to gimbal

36288-439: Was to display moral indignation, denounce his opponents' "outrageous distortions", deny any wrongdoing and insist on his personal integrity; tactics which, Cohen and Witcover note, were to be seen again as he defended himself against the corruption allegations that ended his vice presidency. In the 1964 presidential election , Agnew was opposed to the Republican frontrunner, the conservative Barry Goldwater , initially supporting

36480-418: Was to maintain law and order, and he denounced Brown as a professional agitator, saying, "I hope they put him away and throw away the key." When the Kerner Commission , appointed by President Johnson to investigate the causes of the unrest, reported that the principal factor was institutional white racism, Agnew dismissed these findings, blaming the "permissive climate and misguided compassion" and adding: "It

36672-490: Was to refuse to attend a memorial service at a Baltimore church, and to denounce a planned demonstration in support of the victims. As county executive, Agnew was sometimes criticized for being too close to rich and influential businessmen, and was accused of cronyism after bypassing the normal bidding procedures and designating three of his Republican friends as the county's insurance brokers of record, ensuring them large commissions. Agnew's standard reaction to such criticisms

36864-498: Was vented from the nose to cause the ET to tumble, ensuring that it would break up upon reentry. The ET was the only major component of the Space Shuttle system that was not reused, and it would travel along a ballistic trajectory into the Indian or Pacific Ocean. For the first two missions, STS-1 and STS-2 , the ET was covered in 270 kg (595 lb) of white fire-retardant latex paint to provide protection against damage from ultraviolet radiation. Further research determined that

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