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38-425: T700 may refer to: General Electric T700 , a family of turboshaft and turboprop engines Sony Ericsson T700 , a mid-range mobile phone T-700 , a fictional robot from Terminator series Tatra 700 , a Czech car a discontinued Kenworth heavy-duty truck [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with

76-681: A 75,000 hour limit. The existing aircraft have remained relatively active and competitive into the following decade. In late 2008, following a merger between US carriers Northwest Airlines and Delta Air Lines , the latter announced that a new Saab 340 base was being formed in Atlanta , after which the merged airline would replace its inventory of 12 ATR 72s in its regional fleet with 49 former Northwest 340s. During early 2009, Russian operator Polet Airlines conducted talks with American Eagle to lease 25 340s to increase its breadth of regional flights. A stretched, and significantly faster, derivative of

114-451: A Swedish electronics company, develop a suitable radar for an airborne early warning (AEW) system. The corresponding system was soon paired with the 340 as a platform. Several military variants of the type were produced, including the Saab 340 AEW&C , 340AEW-200 & 340AEW-300 , which are AEW and airborne early warning & control (AEW&C) aircraft. During the 2010s, Saab promoted

152-567: A five-stage axial/one-stage centrifugal mixed-flow compressor, an annular combustor with 15 burners; a two-stage compressor turbine, a three-stage power turbine, and max takeoff power of 6,000 shp (4,475 kW). The YT706 engine is based on the CT7-8A engine. Compared with the H-60's primary T700 engine, the T706 has a larger compressor, hot section improvements, and full authority digital engine control. The T706

190-455: A large order for the type, procuring a total of 50 340Bs along with options for an additional 50 aircraft. However, business conditions and demand for turboprop-powered regional airliner transformed dramatically during the 1990s; this can be perhaps best summarized by AMR Eagle's decision in October 1999 to announce its intention to phase out its 340 fleet. Faced with diminished value and demand for

228-404: A new turboshaft engine demonstrator designated the "GE12" in response to US Army interest in a next-generation utility helicopter. The GE12 was designed and conceived by GE's Art Adamson and Art Adinolfi. In 1967, both GE and Pratt & Whitney were awarded contracts to work parallel with each other to design, fabricate, and test the technology. The Army effort led, in the 1970s, to development of

266-615: A presentation on the 340MSA, and observed that several nations were in talks with Saab on the type, as well as there being increasing demand for such maritime patrol aircraft in Southeast Asia. On 6 June 1984, the Saab 340's launch customer, Swiss operator Crossair , received its first 340 aircraft. One week later, the type performed its first flight with paying customers on board; passengers on board this flight included Pope John Paul II . During 1989, US regional airline American Eagle placed

304-445: Is a Swedish twin-engine turboprop aircraft designed and initially produced by Saab AB and Fairchild Aircraft . It is designed to seat 30-36 passengers and, as of July 2018, there were 240 operational aircraft used by 34 different operators. Under the production arrangement in which production was split 65:35 between Saab and Fairchild, Saab constructed the all-aluminum fuselage and vertical stabilizer along with final assembly of

342-493: Is rated at 2,600 shp (1,939 kW) and increases the hot-and-high mission capability of the U.S. Army's MH-60M Black Hawk for Special Operations applications. T700 : Military turboshaft engine. CT7 turboshaft : Commercial version of T700. CT7 turboprop : Turboprop version of CT7. Related development Related lists The initial version of this article was based on a public domain article from Greg Goebel's Vectorsite . Saab 340 The Saab 340

380-473: The 1973 oil crisis . According to author Gunnar Eliasson, the selection of a turboprop engine made the type less attractive to airlines than jet-powered competitors, however recognized that the General Electric CT7-5A2 engine picked was quite competitive with the jet engines of that era. As conceived, the airliner was to match the performance of jets within its short-haul role. Towards the end of

418-517: The Fokker 100 and British Aerospace 146 , it had no clear advantage in terms of payload or range; as the regional airliner market became increasingly crowded, newer types such as the Bombardier CRJ200 and Embraer ERJ 145 family , which did have an advantage over the 340, had led to diminished sales. During the early 1980s, Sweden's Defence Materiel Administration (FMV) requested that Ericsson ,

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456-489: The Japanese Coast Guard . The system could also be retrofitted onto existing airliners. During 1997, Saab was releasing pessimistic press releases on the 340 programme, stating that it was considering the potential closure of production line, but also pledged that it would maintain full support to existing customers if this happened. On 24 December 1997, Saab announced that it had decided to terminate production of

494-711: The NHIndustries NH90 helicopter. These are all twin-engine machines, except for the three-engined EH101. The commercial version of the T700 is the "CT7", with the engine used on the Bell 214ST (an enlarged version of the Huey), commercial Black Hawks, and the Sikorsky S-92 derivative of the Black Hawk, all of which are twin-engine helicopters. The CT7 turboprop variants use the same core as

532-515: The Saab 2000 , was introduced. However, sales of the type declined due to intense competition within the regional aircraft market. Saab decided to cease production of the aircraft. During the 1970s, Swedish aircraft manufacturer Saab AB became increasingly interested in the civil aircraft market. In 1974, the company decided to proceed with developing its first major civilian aircraft, having previously focused almost entirely upon military aircraft. During

570-577: The Sikorsky S-70 Black Hawk, powered by twin GE "T700" turboshafts, the production descendant of the GE12. The T700 was initially bench-tested in 1973, passed military qualification in 1976, and went into production in 1978. The initial "T700-GE-700" is an ungeared free-turbine turboshaft , with a five-stage axial / one-stage centrifugal mixed-flow compressor, featuring one-piece " blisk " axial stages, with

608-511: The 1970s, the regional airliner venture had become the largest industrial venture in Sweden and was recognized as being too large for Saab to conduct alone. Accordingly, in January 1980, it was announced that Saab had entered into a partnership arrangement with US manufacturer Fairchild Aircraft to develop and produce the upcoming regional airliner. Under this partnership, Fairchild became responsible for

646-471: The 1978 Airline Deregulation Act , an event which would notably contribute to sales of the type during the following decade. The 340 shared several manufacturing and design techniques that were used in Saab's military aircraft, such as the then in-development Saab JAS 39 Gripen multirole combat aircraft . One such technique was eliminating the use of rivets on the aluminum structures, using diffusion bonding instead, to reduce weight. On 25 January 1983,

684-422: The 340 in the maritime patrol mission. A specialized variant of the aircraft, designated as the 340 MSA , was mooted; the proposed patrol aircraft is to be equipped with various sensors and combat systems to be capable of performing both anti-surface and anti-submarine warfare , as well as signals intelligence and long range search and rescue operations. In June 2014, Anders Dahl, head of Saab Singapore, gave

722-401: The 340, Saab chose to shutter production in 1999. While production of the type ceased in 1999, Saab continued to develop and heavily market the 340 for various purposes in both the civil and military markets. In July 2001, the company announced that it had launched a new partnership with service provider Piedmont Hawthorne to remarket used regional 340s to corporate customers. In April 2002, it

760-411: The 340, which it claimed had lost SKr3 billion ($ 386.4 million) in the previous three years. By late 1998, as production was being slowed down towards an eventual shut down, Saab stated that it had been holding talks with a number of interested parties, reportedly including Indian and Chinese companies, on the potential sale of the 340 production line to another manufacturer. On 8 June 1999, the final 340

798-452: The aircraft in Linköping , Sweden, while Fairchild was responsible for the wings , empennage , and wing-mounted nacelles for the two turboprop engines. After Fairchild ceased this work in 1985, production of these components was transferred to Sweden. On 25 January 1983, the Saab 340 conducted its maiden flight . During the early 1990s, an enlarged derivative of the airliner, designated as

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836-592: The aircraft manufacturing business following the completion of the first 40 units, Saab dropped the Fairchild name from the project and proceeded to continue aircraft production, referring to the type under the designation Saab 340A . A total of 159 A models were manufactured. In 1989, an improved version of the airliner, the second generation 340B , introduced more powerful engines and wider horizontal stabilizers ; later production 340Bs also featured an active noise control system. A total of 200 aircraft were built. In 1994,

874-538: The aircraft, designated as the Saab 2000 , was also developed and produced during the 1990s. As of July 2018, there were 210 Saab 340s in service with 34 operators around the world. Primary operators include Rex Airlines with 52 aircraft and an additional 3 operated by its subsidiary Pel-Air , Silver Airways with 21, PenAir with 13, SprintAir with 12, Link Airways with 11, Pacific Coastal Airlines with 10, Castle Aviation with 6 and an additional 2 operated for PuppySpot, and others with fewer aircraft of

912-518: The final third generation version, the 340B Plus , was delivered for service and incorporated improvements that were being introduced at the same time upon the larger Saab 2000 , itself a derivative of the 340. A total of 100 aircraft were completed, adding up to a total of 300 B models. The Saab 340 typically seated between 30 and 36 passengers, with 34 seats being the most common configuration. The last two 340s built were constructed as older configuration 36-seat aircraft for Japan Air Commuter . One of

950-451: The first SF340 performed its maiden flight . Shortly following its launch onto the market in 1984, the Saab 340 became the best selling commuter aircraft in the world. By 1987, all activity by Fairchild on the programme had ceased, the US company having chosen to curtail its aircraft activities, thus Saab became solely responsible for producing the 340. In 1985, due to Fairchild's decision to exit

988-452: The increasingly competitive and politicized regional airliner market in which various competing airlines were alleged to have substantially benefited from government subsidies , while the Swedish government were unwilling to make such commitments to Saab's civil projects. According to authors Sören Eriksson and Harm-Jan Steenhuis, while the 340 had been faster than jet-powered competitors such as

1026-468: The inlet guide vanes and first two stator stages variable; an annular combustion chamber with central fuel injection to improve combustion and reduce smoke; a two-stage compressor turbine; and a two-stage free power turbine with tip-shrouded blades. The engine is designed for high reliability, featuring an inlet particle separator designed to spin out dirt, sand, and dust. The T700-GE-700 is rated at 1,622 shp (1,210 kW) intermediate power. The T700-GE-700

1064-414: The late 1970s, internal studies had determined that a short-haul airliner should be optimized to seat around 30 passengers. Likewise, it was decided to make use of turboprop propulsion, which was slower but more economical than turbofan engines, and to optimize the airliner to take advantage of this type of powerplant; this decision may have been influenced by high oil prices during that decade, such as

1102-479: The major improvements introduced in the 340B Plus was the installation of an active noise and vibration control system in the cabin, reducing noise and vibration levels by about ten dB during cruising flight. This optional feature carried over from the 340B was standard in the 340B Plus along with extended wingtips which was an option on the 340B, about 30 aircraft having the WT option. Another change from earlier models

1140-462: The manufacture of sections such as the wings, tail unit, and engine nacelles while Saab was responsible for 75 per cent of the costs of development, system integration and certification . To match the new partnership, the type received the designation of SF340 . The decision to develop a new generation regional airliner had fortuitously coincided with the removal of control by the US federal government under

1178-505: The rising price of oil ; during this year, Saab announced the largest ever leasing deal for the 340, providing a total of 25 340s to Australian operator Rex Airlines . By late 2010, Saab was evaluating the option of extending the certified lifespan of the 340 which, under the Maintenance Review Board program, is typically limited to 60,000 hours; the company believes the maintenance program could be extended to accommodate up to

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1216-550: 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 the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=T700&oldid=1251221941 " Category : Letter–number combination disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages General Electric T700 In 1967, General Electric began work on

1254-662: The turboshaft variants, with a propeller gearbox fitted forward of the core. CT7 turboprops are used on variants of the Swedish Saab 340 airliner, the Indonesian-Spanish Airtech CN-235 cargolifter, and the Czech Let L-610 G airliner, all twin-turboprop aircraft. The baseline CT7-5A provides 1,735 shp (1,294 kW) on takeoff. In the late 1980s, GE also proposed a much larger turboprop, the T407/GLC38 , with

1292-443: The type. In December 2016, the fleet average is at 35,277 h and 39,446 cycles – a mean 0.89h per flight, less than halfway of its remaining life: the airframe life has been extended from 45,000 to 80,000 flight hours and 90,000 cycles and the Saab 340 should remain in service for another 30 years. Fleet leaders are at 71,268 cycles and 61,867h. Saab Aerotech developed the Saab 340B to meet regional airline operator requirements for

1330-562: Was a more modern interior design and the moving of the lavatory compartment from the aft of the passenger cabin to just aft of the flight deck in most 3rd generation units. This increased total available cargo volume as the original location intruded into the cargo bin area. While the active noise control became standard on all Saab 340Bs in 1994, the first-ever 340B Plus (third B+ built) was delivered new to Hazelton Airlines in Australia in 1995, later operating for Rex Airlines , and currently for

1368-399: Was announced that Canadian company Field Aviation had been contracted by Saab to produce a freighter version of the 340, initially focusing on conversions of the earlier 340A model. Even after production was terminated, a large number of 340s have remained in commercial service in the following decades. By 2006, there was a resurgence in demand for turboprop-powered airliners, in part due to

1406-426: Was delivered, by which time nearly 460 aircraft had been delivered. Production of all models of the 340 was terminated in 1999, and Saab ultimately decided to cease all civil aircraft production in 2005. According to Eliasson, the decision to power the type using turboprop engines rather that jet engines had been provided as one of the reasons for Saab deciding to close down the project; another major factor had been

1444-755: Was followed by improved and uprated Army engine variants for the UH-60 Black Hawk and the AH-64 Apache helicopters, as well as marinized naval engine variants for the SH-60 Seahawk derivative of the Black Hawk, the SH-2G Seasprite , and the Bell AH-1W Supercobra . T700s are also used on Italian and commercial variants of the AgustaWestland EH101/AW101 helicopter, and Italian variants of

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