North_American_Sabreliner

North American Sabreliner

The North American Sabreliner (later sold as the Rockwell Sabreliner) is a mid-sized business jet developed by North American Aviation and was offered to the U.S. Air Force in response to their Utility Trainer Experimental (UTX) program. Due to similarity of the wing and tail to North American's F-86 Sabre, it was dubbed "Sabreliner." Military variants, dubbed T-39 Sabreliner, were used by both the U.S Air Force and U.S. Navy after the Air Force placed an initial order in 1959. The Sabreliner was also developed into a commercial variant.

Design and development

North American began development of the Sabreliner as an in-house project, and in response to the UTX request for proposals, they offered a military version to the Air Force. UTX combined two different roles, personnel transport and combat readiness training into the same aircraft.

The civilian version prototype, which carried the model number NA-265, made its first flight on September 16, 1958. It was powered by a pair of General Electric YJ85 turbojet engines. The type received its FAA certification in April, 1963. The UTX candidate, designated the T-39A was identical in configuration to the NA-265, but when the contract was awarded and the T-39A entered production, it was powered with two Pratt & Whitney JT12A8 turbojet engines.

The civilian production version, or Series 40, was slightly refined over the prototype, with more speed and a roomier cabin. North American then stretched the design by 3 feet 2 inches, giving even greater cabin space, and marketed it as the Series 60, which was certificated in April, 1967. The aerodynamics were cleaned up in the Series 60A, and the cabin made taller in the Series 75.

By 1973, North American had merged with Rockwell International, and the company updated the Sabreliner designs with turbofan engines, selecting the Garrett AiResearch TFE731 for the Series 60, which became the Series 65A, and the General Electric CF700 for the Series 75A. These would be the last two versions, as Sabreliner production came to a close in 1981. The next year, Rockwell sold its Sabreliner division to a private equity firm which formed Sabreliner Corporation, the support organization for continuing operators.

Over 800 Sabreliners were produced, of which 200 were T-39s. A number of retired military T-39s have also entered the civilian world, since the military version also carry FAA type certification. As of 2007, fifty-one examples have been lost in accidents.

The original Navy version, the T3J-1 was redesignated T-39D after the 1962 re-designation), was fitted with the radar system from the F3H-1 Demon all-weather fighter and used as a radar trainer for pilots of that aircraft. The T-39N and T-39G are currently used in the Advanced Jet syllabus in training Naval Flight Officers and USAF and foreign navigators. Foreign students also train in the T-39 in place of the T-1 during the Intermediate Jet syllabus.

The Sabreliner requires a crew of two, and depending on cabin configuration, can carry up to 7 passengers (NA-265 through NA-265-40) or 10 passengers (NA-265-60 and subsequent models).

Variants

Civilian

Sabreliner
(NA265 or NA246) Prototype powered by two General Electric J85-GE-X turbojet engines, one built sometimes unofficialy called XT-39.Sabreliner 40
(NA265-40 or NA282) Civil production variant for 11 passengers powered by two JT12A-6A or -8 engines, two cabin windows each side, 65 built.Sabreliner 40A
(NA265-40A or NA285) Model 40 with Model 75 wings, improved systems and two General Electric CF700 turbofans, three cabin windows each side.Sabreliner 50
(NA265-50 or NA287) One built in 1964 as a Model 60 with JT12A engines, experimental platform for radome nose cowling.Sabreliner 60
(NA265-60 or NA306) Stretched Model 40 for 12 passengers with two JT12-A-8 engines, five cabins each side, 130 built.Sabreliner 60A
Series 60 with aerodynamice design improvements. Sabreliner 65
(NA265-65 or NA465) Based on the Series 60 with Garrett AiResearch TFE731-3R-1D engines and new super-critical wing, 76 built.Sabreliner 75
(NA265-70 or NA370) Series 60A with a raised cabin roof for greater cabin headroom, two JT12A-8 engines, nine built.Sabreliner 75A
(NA265-80 or NA380) Sabreline 75 with a number of aerodynamics and systems updates, and powered by two General Electric CF700 turbofan engines, 66 built.

Military

T-39A
NA265 - Initial production version for the United States Air Force based on Sabreliner prototype with longer nose and military equipment, pilot proficiency trainer, two Pratt & Whitney JT12A-6A engines, 143 built.CT-39A
T-39A modified as a cargo and personnel transport, powered by P&W J60-P-3/-3A engines.NT-39A
One T-39A modified for electronic systems testing.T-39B
(NA270 or NA265-20) Radar systems trainer for the United States Air Force, equipped with doppler radar for pilot training, six built.T-39C
Planned Electronic Countermeasures and strategic bomber trainer, not built.T-39D
(NA265-20 or NA277) Radar systems trainer for the United States Navy, equipped with AN/APQ-94 radar for radar intercept officer training and the AN/APQ-126 radar for bombardier/navigator training. (T3J-1 prior to 1962 redesignation program.), 42 built.CT-39E
United States Navy cargo/transport version, with JT12A-8 engines, originally designated VT-39E, seven second-hand aircraft.T-39F
Electronic warfare crew training conversion of the T-39A for the United States Air Force.CT-39G
United States Navy cargo/transport version based on the stretched fuselage Sabreliner 60, JT12 engines equipped with thrust reversers, 13 bought.T-39G
CT-39G modified for the Undergraduate Flight Officer Training program.T-39N
Navy trainer for the Undergraduate Flight Officer Training program.T3J
Original United States Navy designation that became the T-39D in 1962.

Operators

Specifications (T3J-1/T-39D)

See also

References

External links

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