The North American X-10 (originally designated RTV-A-5 ) is an unmanned technology demonstrator developed by North American Aviation . It was a subscale reusable design that included many of the design features of the SM-64 Navaho missile. The X-10 was similar to the development of the Bell X-9 Shrike project, which was based on features of the GAM-63 RASCAL .
47-583: X10 may refer to: North American X-10 , an unmanned technology demonstrator for advanced missile technologies SL X10 , a Swedish suburban train X10 industry standard , communication over wired power line or wireless used for home automation X10 Wireless Technology , a vendor of home automation products X-10, a code name for the Metallurgical Project X-10 Graphite Reactor , one of
94-435: A pilots' assister that used a pneumatically spun gyroscope to move the flight controls. The autopilot was further developed, to include, for example, improved control algorithms and hydraulic servomechanisms. Adding more instruments, such as radio-navigation aids, made it possible to fly at night and in bad weather. In 1947, a U.S. Air Force C-53 made a transatlantic flight, including takeoff and landing, completely under
141-414: A Microsoft conference demonstrating Xbox 360 games/technologies for 2010 on 11 February 2010 X Window System , 10th protocol version from 1986 to 1988 [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to
188-448: A desert runway. General characteristics Performance Related development Autopilot An autopilot is a system used to control the path of a vehicle without requiring constant manual control by a human operator. Autopilots do not replace human operators. Instead, the autopilot assists the operator's control of the vehicle, allowing the operator to focus on broader aspects of operations (for example, monitoring
235-576: A distance of 400 mi (644 km), and reached an altitude of 41,000 feet (12,000 m). These were performance levels superior to nearly all manned turbojet aircraft (the exception being the YF-104 Starfighter ). In 1955 the program moved to Cape Canaveral, Florida , to complete the test program. Here a new set of six X-10 vehicles completed the testing of the N-6 inertial navigation system at supersonic speeds, reach 49,000 feet (15,000 m) altitude,
282-428: A fail passive requirement. CAT IIIa -This category permits pilots to land with a decision height as low as 50 feet (15 m) and a RVR of 200 metres (660 ft). It needs a fail-passive autopilot. There must be only a 10 probability of landing outside the prescribed area. CAT IIIb – As IIIa but with the addition of automatic roll out after touchdown incorporated with the pilot taking control some distance along
329-438: A flight into taxi , takeoff, climb, cruise (level flight), descent, approach, and landing phases. Autopilots that automate all of these flight phases except taxi and takeoff exist. An autopilot-controlled approach to landing on a runway and controlling the aircraft on rollout (i.e. keeping it on the centre of the runway) is known as an Autoland, where the autopilot utilizes an Instrument Landing System (ILS) Cat IIIc approach, which
376-429: A gyroscope or a pair of accelerometers), a computer/amplifier and an actuator. The sensor detects when the aircraft begins the yawing part of Dutch roll. A computer processes the signal from the sensor to determine the rudder deflection required to damp the motion. The computer tells the actuator to move the rudder in the opposite direction to the motion since the rudder has to oppose the motion to reduce it. The Dutch roll
423-427: A required performance factor, therefore the amount of error or actual performance factor must be monitored in order to fly those particular routes. The longer the flight, the more error accumulates within the system. Radio aids such as DME, DME updates, and GPS may be used to correct the aircraft position. An option midway between fully automated flight and manual flying is Control Wheel Steering ( CWS ). Although it
470-440: A series yaw damper is clutched to the rudder control quadrant, and will result in pedal movement when the rudder moves. Some aircraft have stability augmentation systems that will stabilize the aircraft in more than a single axis. The Boeing B-52 , for example, requires both pitch and yaw SAS in order to provide a stable bombing platform. Many helicopters have pitch, roll and yaw SAS systems. Pitch and roll SAS systems operate much
517-569: A total flight distance of 627 mi (1,009 km) and a peak speed of Mach 2.05. Of all the X-10s built, only one survived the test program: serial 51-9307, the first X-10 to fly. Of the other four aircraft that flew at Edwards AFB, one exploded on takeoff, one was lost in flight, and the remaining two were destroyed in landing accidents. As for the vehicles flown at Cape Canaveral, three were expended in planned dive-in flights against Grand Bahama Island , and two were lost in landing accidents. In 1958,
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#1732854780478564-474: A wing leveller with limited pitch oscillation-correcting ability; or it may receive inputs from on-board radio navigation systems to provide true automatic flight guidance once the aircraft has taken off until shortly before landing; or its capabilities may lie somewhere between these two extremes. A three-axis autopilot adds control in the yaw axis and is not required in many small aircraft. Autopilots in modern complex aircraft are three-axis and generally divide
611-433: Is a reference to American inventor George De Beeson (1897 - 1965), who patented an autopilot in the 1930s, while others claim that Royal Air Force pilots coined the term during World War II to symbolize that their aircraft technically belonged to King George VI . In the early days of aviation, aircraft required the continuous attention of a pilot to fly safely. As aircraft range increased, allowing flights of many hours,
658-585: Is always in CWS mode. The major difference is that in this system the limitations of the aircraft are guarded by the flight control computer , and the pilot cannot steer the aircraft past these limits. The hardware of an autopilot varies between implementations, but is generally designed with redundancy and reliability as foremost considerations. For example, the Rockwell Collins AFDS-770 Autopilot Flight Director System used on
705-451: Is becoming less used as a stand-alone option in modern airliners, CWS is still a function on many aircraft today. Generally, an autopilot that is CWS equipped has three positions: off, CWS, and CMD. In CMD (Command) mode the autopilot has full control of the aircraft, and receives its input from either the heading/altitude setting, radio and navaids, or the FMS (Flight Management System). In CWS mode,
752-411: Is damped and the aircraft becomes stable about the yaw axis. Because Dutch roll is an instability that is inherent in all swept-wing aircraft, most swept-wing aircraft need some sort of yaw damper. There are two types of yaw damper: the series yaw damper and the parallel yaw damper. The actuator of a parallel yaw damper will move the rudder independently of the pilot's rudder pedals while the actuator of
799-481: Is generally considered unlikely that different engineering teams will make the same mistakes. As the software becomes more expensive and complex, design diversity is becoming less common because fewer engineering companies can afford it. The flight control computers on the Space Shuttle used this design: there were five computers, four of which redundantly ran identical software, and a fifth backup running software that
846-414: Is generally made mandatory by international aviation regulations. There are three levels of control in autopilots for smaller aircraft. A single-axis autopilot controls an aircraft in the roll axis only; such autopilots are also known colloquially as "wing levellers", reflecting their single capability. A two-axis autopilot controls an aircraft in the pitch axis as well as roll, and may be little more than
893-692: Is located at the National Museum of the United States Air Force in Dayton, Ohio . This was the first X-10 to fly. The aircraft was delivered to the Air Force Museum in 1957, upon completion of the program. It is displayed in the museum's Research & Development Hangar. The 1960s series Men Into Space used footage of the X-10 and SM-64 Navaho tests at Edwards AFB to depict spacecraft landings on
940-451: Is needed: at least fail-passive but it needs to be fail-operational for landing without decision height or for RVR below 100 metres (330 ft). CAT IIIc – As IIIb but without decision height or visibility minimums, also known as "zero-zero". Not yet implemented as it would require the pilots to taxi in zero-zero visibility. An aircraft that is capable of landing in a CAT IIIb that is equipped with autobrake would be able to fully stop on
987-461: Is used when the visibility is zero. These approaches are available at many major airports' runways today, especially at airports subject to adverse weather phenomena such as fog . The aircraft can typically stop on their own, but will require the disengagement of the autopilot in order to exit the runway and taxi to the gate. An autopilot is often an integral component of a Flight Management System . Modern autopilots use computer software to control
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#17328547804781034-410: Is usually a set of extra hardware and software that deals with pre-programming the model's flight. A flight director (FD) is a very important component when it comes to flying an aircraft. It is considered a crucial component within an aircraft's avionics system. The primary function of the flight director is to provide visual guidance to which ever pilot is hand-flying the airplane. Hand-flying or not,
1081-631: The Boeing 777 uses triplicated FCP-2002 microprocessors which have been formally verified and are fabricated in a radiation-resistant process. Software and hardware in an autopilot are tightly controlled, and extensive test procedures are put in place. Some autopilots also use design diversity. In this safety feature, critical software processes will not only run on separate computers, and possibly even using different architectures, but each computer will run software created by different engineering teams, often being programmed in different programming languages. It
1128-509: The RTV-A-5 (Research Test Vehicle, Air Force), or X-10 in 1951. This vehicle was to prove critical flight technology for the design of the Navaho cruise missile. These included proving the basic aerodynamics to Mach 2, flight testing the inertial guidance unit and flight control avionics to the same speed, and validate the recovery system for the next phase in the Navaho program. Preliminary design of
1175-399: The transonic and supersonic environments. It also made the vehicle unstable requiring active computer flight control in the form of an autopilot . Thus, the X-10 is similar to modern military fighters which are flown by the onboard computer and not directly by the pilot. Though the X-10 was receiving directional commands from a radio-command guidance system, these commands were sent through
1222-513: The Apollo program is an early example of a fully digital autopilot system in spacecraft. Not all of the passenger aircraft flying today have an autopilot system. Older and smaller general aviation aircraft especially are still hand-flown, and even small airliners with fewer than twenty seats may also be without an autopilot as they are used on short-duration flights with two pilots. The installation of autopilots in aircraft with more than twenty seats
1269-518: The X-10 was completed in February 1951 and the first vehicle was delivered to Edwards Air Force Base in May 1953. The first flight occurred on 14 October 1953. The X-10 was powered by two Westinghouse J40 turbojet engines with afterburners, and equipped with landing gear for conventional take off and landing. The combination of a delta wing with an all-moving canard gave it extremely good aerodynamics in
1316-461: The aircraft control surfaces to damp unacceptable motions. SAS automatically stabilizes the aircraft in one or more axes. The most common type of SAS is the yaw damper which is used to reduce the Dutch roll tendency of swept-wing aircraft. Some yaw dampers are part of the autopilot system while others are stand-alone systems. Yaw dampers use a sensor to detect how fast the aircraft is rotating (either
1363-537: The aircraft. The software reads the aircraft's current position, and then controls a flight control system to guide the aircraft. In such a system, besides classic flight controls, many autopilots incorporate thrust control capabilities that can control throttles to optimize the airspeed. The autopilot in a modern large aircraft typically reads its position and the aircraft's attitude from an inertial guidance system . Inertial guidance systems accumulate errors over time. They will incorporate error reduction systems such as
1410-548: The carousel system that rotates once a minute so that any errors are dissipated in different directions and have an overall nulling effect. Error in gyroscopes is known as drift. This is due to physical properties within the system, be it mechanical or laser guided, that corrupt positional data. The disagreements between the two are resolved with digital signal processing , most often a six-dimensional Kalman filter . The six dimensions are usually roll, pitch, yaw, altitude , latitude , and longitude . Aircraft may fly routes that have
1457-403: The constant attention led to serious fatigue. An autopilot is designed to perform some of the pilot's tasks. The first aircraft autopilot was developed by Sperry Corporation in 1912. The autopilot connected a gyroscopic heading indicator , and attitude indicator to hydraulically operated elevators and rudder . ( Ailerons were not connected as wing dihedral was counted upon to produce
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1504-512: The control of an autopilot. Bill Lear developed his F-5 automatic pilot, and automatic approach control system, and was awarded the Collier Trophy in 1949. In the early 1920s, the Standard Oil tanker J.A. Moffet became the first ship to use an autopilot. The Piasecki HUP-2 Retriever was the first production helicopter with an autopilot. The lunar module digital autopilot of
1551-532: The controls and visible to onlookers. Elmer Sperry Jr., the son of Lawrence Sperry, and Capt Shiras continued work on the same autopilot after the war, and in 1930, they tested a more compact and reliable autopilot which kept a U.S. Army Air Corps aircraft on a true heading and altitude for three hours. In 1930, the Royal Aircraft Establishment in the United Kingdom developed an autopilot called
1598-464: The flight director is used with all autopilot systems today. When the flight director is turned on, it shows a pink triangle along the middle of the PFD, it can also be called or considered a "crosshair". The FD is the aircraft's computer giving instructions to the pilot hand-flying on how to fly the plane and where to put the attitude indicator. When the pilot hand-flying has aligned their attitude indicator with
1645-490: The intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=X10&oldid=1243647890 " Category : Letter–number combination disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages North American X-10 To facilitate development of the long-range Navaho surface-to-surface cruise missile , North American Aviation (NAA) developed
1692-453: The necessary roll stability.) It permitted the aircraft to fly straight and level on a compass course without a pilot's attention, greatly reducing the pilot's workload. Lawrence Sperry , the son of famous inventor Elmer Sperry , demonstrated it in 1914 at an aviation safety contest held in Paris . Sperry demonstrated the credibility of the invention by flying the aircraft with his hands away from
1739-425: The on-board computer which implemented the commands. Later X-10s included an N-6 inertial navigation system which completely controlled the vehicle through the cruise portion of the flight. At the time it entered service, the X-10 was one of the fastest turbojet-powered aircraft flown. From 1953 to 1955 a total of five X-10s flew 15 flights at Edwards AFB. There it reached a maximum flight speed of Mach 1.84, flew
1786-524: The pilot controls the autopilot through inputs on the yoke or the stick. These inputs are translated to a specific heading and attitude, which the autopilot will then hold until instructed to do otherwise. This provides stability in pitch and roll. Some aircraft employ a form of CWS even in manual mode, such as the MD-11 which uses a constant CWS in roll. In many ways, a modern Airbus fly-by-wire aircraft in Normal Law
1833-405: The pilot. CAT I – This category permits pilots to land with a decision height of 200 feet (61 m) and a forward visibility or Runway Visual Range (RVR) of 550 metres (1,800 ft). Autopilots are not required. CAT II – This category permits pilots to land with a decision height between 200 feet (61 m) and 100 feet (30 m) and a RVR of 300 metres (980 ft). Autopilots have
1880-429: The pink FD crosshairs, that pilot is flying the correct flight path indicated by the aircraft's computers. The Flight Director is there to help you maintain a multitude of things depending on the situation. It can help you with maintaining a vertical speed, a specific altitude, heading, and/or navigational tracking all in one. Flight directors are extremely useful when it comes to instrument approaches when you must maintain
1927-565: The remaining three Cape Canaveral X-10s were selected for use as high speed targets for the BOMARC surface-to-air missile. The plan was to recover and reuse the X-10, not to have them shot down by the BOMARC. None of these vehicles completed their target flight: two were lost when landing and the third suffered a mechanical problem forcing it to be flown into the Atlantic. The sole surviving X-10 s/n GM 19307
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1974-541: The runway but would have no ability to taxi. Fail-passive autopilot: in case of failure, the aircraft stays in a controllable position and the pilot can take control of it to go around or finish landing. It is usually a dual-channel system. Fail-operational autopilot: in case of a failure below alert height, the approach, flare and landing can still be completed automatically. It is usually a triple-channel system or dual-dual system. In radio-controlled modelling , and especially RC aircraft and helicopters , an autopilot
2021-551: The runway. This category permits pilots to land with a decision height less than 50 feet or no decision height and a forward visibility of 250 feet (76 m) in Europe (76 metres, compare this to aircraft size, some of which are now over 70 metres (230 ft) long) or 300 feet (91 m) in the United States. For a landing-without-decision aid, a fail-operational autopilot is needed. For this category some form of runway guidance system
2068-519: The same way as the yaw damper described above; however, instead of damping Dutch roll, they will damp pitch and roll oscillations to improve the overall stability of the aircraft. Instrument-aided landings are defined in categories by the International Civil Aviation Organization , or ICAO. These are dependent upon the required visibility level and the degree to which the landing can be conducted automatically without input by
2115-405: The trajectory, weather and on-board systems). When present, an autopilot is often used in conjunction with an autothrottle , a system for controlling the power delivered by the engines. An autopilot system is sometimes colloquially referred to as "George" (e.g. "we'll let George fly for a while"; "George is flying the plane now". ). The etymology of the nickname is unclear: some claim it
2162-638: The world's first nuclear reactors Sony Ericsson Xperia X10 , a smartphone using the Android operating system X10 (video game), a video game by Warthog Games Limited X Ten, a gene-sequencing machine in the HiSeq series produced by the San Diego–based biotech firm Illumina Fujifilm X10 , a digital compact camera from 2011 Skydio X10 or X10D autonomous drone Computer related [ edit ] X10 programming language Microsoft X10 Event ,
2209-504: Was developed independently. The software on the fifth system provided only the basic functions needed to fly the Shuttle, further reducing any possible commonality with the software running on the four primary systems. A stability augmentation system (SAS) is another type of automatic flight control system; however, instead of maintaining the aircraft required altitude or flight path, the SAS will move
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