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From Wikipedia, the free encyclopedia

T-X program
Two parked Boeing T-Xs (181005-F-PO640-0021).JPG
Two Boeing T-X aircraft
Project for Fast-jet trainer
Requirement Advanced Pilot Training System
Issued by United States Air Force
Date initiated 20 March 2015
Proposals Leonardo T-100
Boeing T-X
Lockheed Martin/KAI T-50A
Date concluded 27 September 2018
Outcome Boeing T-X selected

The T-X program has been established to enable the United States Air Force to buy a new two-seat jet trainer for fast-jet training to replace the Northrop T-38 Talon; the average age of the T-38 fleet is over 50 years.[1] About 350 aircraft are expected to be ordered to replace the T-38, but further purchases could push the overall purchase to over 1,000.[2] The notional in-service date for the replacement trainer was 2017,[3] but shrinking budgets have pushed initial operating capability (IOC) to around 2023.[4] The program was expected to begin in FY 2017.[5]

On 27 September 2018, the US Air force selected the Boeing/Saab T-X entry to become its trainer aircraft.[6]

History

An air-to-air view of a USAF Northrop T-38 Talon from the 560th Flying Training Squadron. The T-38 Talon is to be replaced as a USAF trainer by the aircraft selected during the T-X program, the Boeing T-X.
An air-to-air view of a USAF Northrop T-38 Talon from the 560th Flying Training Squadron. The T-38 Talon is to be replaced as a USAF trainer by the aircraft selected during the T-X program, the Boeing T-X.

The USAF's Air Education and Training Command (AETC) has been developing requirements for the T-38 replacement program since 2003. Originally, the replacement trainer was expected to enter service around 2020. A fatigue failure in 2008 killed the two-person crew of a T-38C, advancing the target service date to 2017.[2] In the Fiscal 2013 budget proposal the USAF suggested delaying the initial operating capability to FY2020 with the contract award not expected before FY2016.[7] Shrinking budgets and the need to fund higher priority modernization projects have pushed the IOC the T-X aircraft to "fiscal year 2023 or 2024". The delay was a direct result of budget constraints, so the T-X was pushed back to support higher Air Force priorities. Although the program was left out of the FY 2014 budget entirely, the service still views the trainer as a priority.[4]

In February 2013, there was an expectation that the program might succumb to budget pressures in the USAF.[8] In May 2013, the T-X industry day was postponed "until further notice" due to the fiscal climate.[9] In December 2013 the head of the program said there were no plans for 2014 or 2015, but that he would speak to the chief of staff about the program either in February 2014 or later.[10]

On 20 March 2015, the US Air Force released the T-X program requirements.[11] On 30 December 2016, the US Air Force released a formal request for proposals. The request includes 350 aircraft and initial operational capability by 2024. [12] On 27 September 2018, the U.S. Air Force officially selected the Boeing T-X entry as its new advanced jet trainer to replace the T-38.[13][14]

Requirements

One of the driving requirements for the new trainer will be to help prepare pilots for the increased complexity in some areas, particularly information management, that are a part of fifth generation jet fighters like the F-22 Raptor and the F-35 Lightning II. The Air Force first viewed this as unnecessary and costly, but industry analysis showed it to be cheaper in the long run.[15] The aircraft and simulation system will have to fulfill several basic training roles; basic aircraft control, airmanship, formation, instrument and navigation, advanced air-to-air, advanced air-to-ground, and advanced crew/cockpit resource management. Furthermore, there are five advanced training roles that the system is expected to fulfill; sustained high-G operations at 6.5–7.5g,[15] aerial refueling, night vision imaging systems operations, air-to-air intercepts, and data-link operations. The 2009 Request For Information (RFI) mentions that some tasks, such as aerial refueling, may be performed in the simulator and not on the aircraft itself.[16] Aircraft availability is to be 80%, but not higher, as that would drive cost too high. Program requirements focus on life-cycle costs rather than just purchase price.[15]

Additionally, while the RFI is specifically for a USAF trainer, it asked potential suppliers about the feasibility of a fighter/attack variant of the aircraft and a carrier-capable variant for the United States Navy.[16] However, the requirements manager for the program, Stephan Lyon, has stated that it is unlikely that potential combat performance will be considered. Similarly, while Navy officials will be participating in some stages of the program, carrier suitability will not be part of the evaluation.[2] Similarly, the Air Force considered the possibility of adapting the T-X aircraft to perform light attack and close air support as part of their effort to retire the A-10 Thunderbolt II. With the T-X already invested in, making it a multirole combat and training plane could defray costs of developing a new attack jet that can operate efficiently in a low-threat environment.[17] However, by 2016 the Air Force decided to pursue other aircraft to meet CAS requirements and not "dilute" the trainer program to support other missions.[18]

Competitors

Several competitors submitted existing aircraft and others proposed all new designs. The following were submitted as bids:[19] Leonardo S.p.A. with the M-346-based T-100,[20] Korea Aerospace Industries/Lockheed Martin with the T-50 Golden Eagle,[21] Boeing and Saab Group new, purpose-built Boeing T-X,[22] and Sierra Nevada Corporation and Turkish Aerospace Industries with a new design.[citation needed]

Boeing / Saab T-X

On 6 December 2013, Boeing and Saab Group announced they would team up to offer a new aircraft (Boeing T-X) for the T-X program.[23] On 22 August 2016, Boeing publicly revealed first pictures of the T-X concept.[24] The single-engine, twin-tail aircraft was presented to the public on 13 September.[25] The aircraft was first flown on 20 December 2016.[26]

Saab announced in September 2017 that it would open production in the US if the Boeing/Saab T-X design were to win.[27]

Leonardo T-100

T-100 mock-up in July 2016
T-100 mock-up in July 2016

Italian aerospace company Leonardo S.p.A. (formerly Alenia Aermacchi) is part of a bid with its M-346 Master. The company had initially considered submitting the aircraft as the prime contractor, but changed its mind in 2010. The company is offering a variant of the aircraft as the "Leonardo DRS T-100 Integrated Training System" for the competition. Alenia anticipates moving the final assembly location from Italy to the United States if it wins the competition.[2] In January 2013, General Dynamics joined Alenia Aermacchi and signed a letter of intent (LOI) to compete jointly on the program.[28] In February 2014, CAE Inc., which specializes in flight simulators and flight training, joined General Dynamics and Alenia Aermacchi to offer the T-100 for the T-X program.[29] On 26 March 2015, General Dynamics withdrew as the prime contractor for the M-346 Master/T-100 offering. General Dynamics would no longer retain its role as the lead contractor and systems integrator for the bid.[30]

Alenia Aermacchi which had been a subsidiary to a holding company Finmeccanica, was taken over completely on 1 January 2016 and renamed Leonardo in 2017. On 22 February 2016, Raytheon announced it was replacing General Dynamics and going to head-up the bid in the US for the T-X program, as the primary contractor, teamed with Leonardo, Honeywell Aerospace, and CAE USA Inc. The aircraft to be submitted would be a modified M-346 platform, named T-100, using two Honeywell/ITEC F124 low-bypass turbofan engines.[31][32] On January 25, 2017, Raytheon announced its withdrawal from the T-X program, leaving Leonardo without a partner in the program.[33]

On 8 February 2017, Leonardo announced its return to the U.S. Air Force T-X competition, proposing the T-100 with its American subsidiary, Leonardo DRS, as the prime contractor.[34] Leonardo DRS will be supported by CAE USA in the design and development of the T-100 Ground-Based Training System (GBTS). Honeywell will also provide twin F124 turbofan propulsion engines.[34] The aircraft is to be built at a new 750-employee manufacturing facility at Moton Field in Tuskegee, Alabama.[35]

Lockheed Martin / KAI T-50 Golden Eagle

T-50 Golden Eagle
T-50 Golden Eagle

Lockheed Martin with Korea Aerospace Industries (KAI) proposed their KAI T-50 Golden Eagle, which first flew in 2002, for the T-X program. While the T-50 was explicitly designed and built for the South Korean trainer requirement, Lockheed Martin officials acknowledged that the aircraft was designed with replacing the T-38 in mind. Hence, the Defense Department reserved the T-50A designation for the KAI T-50 in hopes of not creating confusion between two "T-50" trainers by allocating T-50 to an unrelated trainer aircraft.[36] Lockheed anticipated proposing the T-50 with few changes, mostly avionics related. Plans were in place to build a new assembly line in the United States for manufacturing the T-50 for the United States Air Force instead of manufacturing them in South Korea, should the Lockheed Martin/KAI team win the contract.[2]

On 17 December 2015, Lockheed and KAI revealed their T-X prototype in South Korea based on the T-50, the first competitor in the program to do so publicly. Referred to as the "T-X demonstrator aircraft", it adds to the T-50 airframe the ability for aerial refueling, embedded ground training systems, and a large area display in place of the five smaller screens. South Korean president Park Geun-hye attended the rollout ceremony. Lockheed Martin's upgraded T-50A jet trainer successfully completed its first flight test in Sacheon, South Korea, a key milestone for the aircraft.[37][38] Flight tests in the U.S. should begin in 2017.[39][40][41][42] As a line replaceable unit, the aircraft can have an optional large dorsal hump, which houses the aerial refueling receptacle.[43][44]

Northrop Grumman / BAE Systems

Northrop Grumman with partners BAE Systems, L-3 Communications, and Rolls-Royce Holdings, initially had intentions of proposing an updated version of the Hawk T2/128 for the T-X program. Northrop Grumman assumed prime responsibilities for the team in 2014.[45] Northrop built the U.S. Air Force's current training aircraft, the T-38 Talon.

The Hawk T2 features an all glass cockpit, new wing, and fuselage components. Although the basic Hawk design dates back to the 1970s, the only parts shared between the T1 and T2 versions are the canopy and airbrake, making the T2 version essentially a new aircraft. The Northrop Grumman team was expecting this to be a low-risk, low-cost strategy for the competition, augmented by the fact that Hawk-based McDonnell Douglas/Boeing T-45C Goshawk with glass cockpit is used to train Naval Aviators and Naval Flight Officers students slated for tactical jet aircraft for the U.S. Navy and U.S. Marine Corps. On 13 September 2013, Rolls-Royce announced it would join the team and provide integration support for its Adour Mk951 engine.[46]

However, in 2015, it was reported that Northrop Grumman was no longer submitting the Hawk for T-X consideration, primarily due to airframe performance shortcomings with maneuvers such as high angle-of-attack and sustained accelerations, as well as concerns regarding affordability.[47] Instead, Northrop Grumman had secretly begun a new clean-sheet design to closely match the evolving T-X requirements. Scaled Composites, a subsidiary of Northrop Grumman, was to construct the prototype, with a first flight expected in late 2015.[citation needed]

On 19 August 2016 in Mojave, Northrop Grumman publicly revealed a model of its T-X concept powered by a single GE F404-102D engine.[48] On 1 February 2017, the companies announced they would not submit a proposal for the T-X program.[49]

Sierra Nevada / TAI Freedom

Sierra Nevada Corporation (SNC) and Turkish Aerospace Industries (TAI) are also considering offering a new aircraft for the T-X program[50] based on TAI Hurjet trainer.[citation needed] The companies have formed the Freedom Aircraft Ventures LLC in Centennial, Colorado to develop a lightweight, all-composite trainer for the competition.[50]

Stavatti Javelin

Stavatti Aerospace announced on 31 March 2017 it submitted the Javelin for the T-X competition. The Javelin is a new single-engine, two-seat, military trainer jet and Very Light Fighter (VLF) aircraft derived from the Aviation Technology Group Javelin Mk-30.[51]

Textron AirLand Scorpion

Textron AirLand Scorpion
Textron AirLand Scorpion

Textron AirLand, a joint venture between Textron and AirLand Enterprises, developed the Textron AirLand Scorpion light attack jet which had potential as a candidate for the T-X program. Textron management stated that with some modifications, such as swapping the two engines with a single engine and changing the wings, the aircraft would be an ideal match for the T-X role.[52] Additionally, during the Farnborough 2014 Airshow, Textron representatives expressed significant interest in the T-X program, and indicated they were closely following the progression of the draft requirements.[21] On 23 August 2014, Textron AirLand formally confirmed they would compete for the T-X trainer and modify the Scorpion to better fit the training requirements.[53] However, in September 2015 Textron AirLand revealed it would not offer a version of the Scorpion for the program due to changing Air Force requirements, moving from a low-cost advanced jet trainer requiring little development to a high-performance fly-by-wire trainer with top tier handling qualities. The company is still interested in the T-X, but would have to offer a clean-sheet design like most of the other competitors.[54][55]

See also

References

  1. ^ Butler, Amy (15 September 2010), "T-X Plan Not Likely Until Next Year", Aviation Week, retrieved 17 September 2010.
  2. ^ a b c d e Trimble, Stephan (22 June 2010), "US Air Force, industry prepare for T-38 replacement", Flight International, retrieved 20 September 2010.
  3. ^ Butler, Amy (9 September 2010), "BAE To Bid Hawk For USAF T-X", Aviation Week, retrieved 17 September 2010.
  4. ^ a b "Budget constraints delay new trainer", Air force times, 15 May 2013.
  5. ^ "Pentagon proposes buying fewer fighters, unmanned aircraft in FY2015 budget", Flight global, 4 March 2014.
  6. ^ Air force awards next generation fighter & bomber trainer, AF.
  7. ^ "USAF delays T-38 trainer replacement to 2020". Flight global. 17 February 2012. Retrieved 24 February 2013.
  8. ^ Orlando, Dave (22 February 2013). "USAF may not be able to afford T-X jet trainer project". Flight global. Retrieved 24 February 2013.
  9. ^ "USAF postpones T-X trainer industry day", Flight global, 20 May 2013.
  10. ^ Mehta, Aaron (17 December 2013). "New USAF Training Head: T-X Requirements Under Review". Defense news. Gannett Government Media. Retrieved 17 December 2013.
  11. ^ T-X future T-38 jet replacement requirements released, AF.
  12. ^ "T-X trainer program under way, US Air Force releases RTP", Ain online, 2017-01-03.
  13. ^ "Air Force awards $9B contract to Boeing for next training jet", Defense news, 2018-09-27.
  14. ^ Air Force awards next generation fighter & bomber trainer, AF.
  15. ^ a b c Butler, Amy (6 April 2015). "T-X Competition Fierce Despite GD, Alenia Split". Aviation Week & Space Technology. Archived from the original on 7 April 2015. Retrieved 7 April 2015.
  16. ^ a b Advanced Pilot Training (APT) Family of Systems (FoS) Program (request for information), Federal Business Opportunities, 5 August 2009 [31 March 2009], retrieved 20 September 2010.
  17. ^ Amid Pressure To Keep A-10 Alive, USAF Explores Close-Air Support's Future – Militarytimes.com, 25 August 2015
  18. ^ USAF seeks two new close-air support aircraft – Flightglobal.com, 24 July 2016
  19. ^ https://www.fool.com/investing/2016/12/27/2017-the-year-the-air-force-picks-its-new-plane.aspx
  20. ^ http://www.ainonline.com/aviation-news/defense/2017-02-13/leonardo-stays-running-us-air-force-t-x-program
  21. ^ a b Felstead, Peter (16 July 2014). "Farnborough 2014: Textron AirLand Scorpion makes international debut". Jane's 360. IHS.
  22. ^ Boeing & Saab sign joint development agreement on T-X family of systems training competition (press release), Saab
  23. ^ "Boeing & Saab sign joint development agreement on T-X family of systems training competition" (Press release). Boeing Media room.
  24. ^ Butler, Amy (22 August 2016). "Boeing issues 'sneak peek' of T-X". Combat Aircraft. Retrieved 22 August 2016.
  25. ^ Giangreco, Leigh (13 September 2016). "Boeing unveils contender for Northrop T-38 replacement". Flight Global. Retrieved 14 September 2016.
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  27. ^ "Saab Offers U.S. Based Production Capability for T-X Trainer Aircraft". Saab Corporate. Retrieved 2018-02-08.
  28. ^ "General Dynamics and Alenia Aermacchi team up on T-X bid", Flight global, 17 January 2013.
  29. ^ "CAE USA Joins General Dynamics T-X Offering", Defense news, 19 February 2014.
  30. ^ "General Dynamics withdraws from T-X with T-100 as prime contractor", Defense news, 26 March 2015.
  31. ^ "Raytheon announces bid for Usar T-X trainer competition". Defense news. 2016-02-22.
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  34. ^ a b http://www.defensenews.com/articles/leonardo-goes-it-alone-on-tx-bid
  35. ^ "Leonardo plans to produce advanced Air Force trainer in Tuskegee". Made in Alabama. Retrieved 2017-04-24.
  36. ^ http://www.designation-systems.net/usmilav/412015-L(addendum).html#_Note_T50A
  37. ^ "Lockheed's T-50A Lifts Off for First Time Ahead of T-X Competition". Defense News. Retrieved 2016-06-12.
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  39. ^ Pictures: KAI, Lockheed rollout T-X prototype, Flight global, 17 December 2015.
  40. ^ "KAI Unveils T-X Contender, Pursues T-50 Exports", AIN online, 18 December 2015.
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  42. ^ "K-50 T-X, Seoul's Contender for the USAF Future Trainer Competition", Defense Update, 18 December 2015.
  43. ^ Lockheed proposes KAI T-50A for T-X over Skunk Works design, Flight global, 11 February 2016.
  44. ^ Lockheed Martin/Korea Aerospace Industries T-50A, Combat Aircraft, 19 August 2016
  45. ^ Clark, Colin (7 July 2014). "Northrop Takes The Lead From BAE On $11B T-X Trainer". Breaking Defense. Retrieved 16 October 2014.
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  47. ^ Butler, Amy (6 February 2015). "Northrop Pivots To Clean-Sheet T-X Trainer". Aviation Week. Retrieved 6 February 2015.
  48. ^ Trimble, Stephen (20 August 2016). "Northrop T-X prototype revealed on Mojave runway". Flight global. Retrieved 20 August 2016.
  49. ^ http://news.northropgrumman.com/news/releases/northrop-grumman-and-bae-systems-statement-on-the-t-x-trainer-program
  50. ^ a b "Sierra Nevada Corp./TAI Team To Offer Freedom Trainer For T-X". Aviation Week & Space Technology. 16 December 2016..
  51. ^ "Stavatti Submits Javelin T-X In Response To USAF APT RFP" (Press release). Stavatti Aerospace. 31 March 2017. Retrieved 16 August 2017.
  52. ^ Mehta, Aaron (16 September 2013). "Textron unveils light attack Scorpion". DefenseNews.
  53. ^ "Textron AirLand Developing Scorpion Trainer Variant", Defense news, 26 August 2014.
  54. ^ "Textron AirLand Considers Clean-Sheet T-X Offering", Air force times, 21 September 2015.
  55. ^ "Scorpion will not be proposed for USAF T-X competition", Flight global, 24 September 2015.
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