Tuesday, May 28, 2024
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The Cessna T-37B Tweet has performed the role of primary jet trainer for the United States Air Force for over four decades. Over the years most of the Air Force pilots have spent many hours flying the type before progressing to the faster T-38 Talon, larger T-1A Jayhawk or T-44 turboprop trainers later on in the undergraduate pilot training course. However, the introduction of the new turboprop engined Raytheon Beech T-6 Texan II signalled the end of the T-37 era and from 2003 examples of the type were regularly arriving at AMARC as they are replaced by T-6s fresh from the production line.

At first glance the choice of a single, turboprop-engined aircraft to replace the twin, jet-engined T-37 seems a bit strange but it was thought that the T-6 lower maintenance costs, larger fuel load and advanced avionics would provide a far better training platform for the 21st century. The biggest difference between the T-6 and the T-37 is that the instructor sits next to the student in the T-37 and behind the student in the T-6. To componsate for this the T-6 students will undergo more simulator time. The T-6 is also being introduced into the US Navy to replace their ageing T-34 Mentor aircraft and this will provide the obvious benefits of a uniform training fleet across the two services.

The T-37 made its first flight in 1955 and entered into service with the Air Force in 1956. Production of the type continued until 1975, by which time a total of 1,269 had been produced (444 T-37A, 552 T-37B). A combat version of the T-37 was also produced, designated the A-37 the first example left the production line in 1967. The A-37 was designed specifically to carry out the COIN (counter-insurgency) role in the Vietnam war and production eventaully stood at over 600 aircraft.

Many other countries have used the T-37 to train their pilots, including...

  • Brazil
  • Burma
  • Cambodia
  • Chile
  • Columbia
  • Greece
  • Jordan
  • Pakistan
  • Peru
  • Portugal
  • South Korea
  • South Vietnam
  • Thailand
  • Turkey
  • West Germany
Cessna T-37 Tweet_1
Cessna T-37 Tweet_2
Cessna T-37 Tweet_3
Cessna T-37 Tweet_4

Over the more recent years there have been several plans to replace the T-37 with a more modern design. In 1982 the Fairchild T-46 Eaglet was put forward to take over the primary training role but this was cancelled by the Air Force in 1986 due to budget constraints. Two of the three T-46 prototypes produced were sent to AMARC for storage, one of these is still displayed on Celebrity Row.

On July 31, 2009, the last four Air Force T-37 were retired to AMARG, joining the 392 already in storage.


Due to the popularity of this aircraft type there was always a chance that many of the T-37s arriving at AMARC would find a future home with a foreign Air Force. In 2007 Colombia, a nation that was already an experienced T-37 operator, was given a Grant Authority for the supply of 10 surplus T-37 aircraft, these were joined by another 4 in 2009. These aircraft allowed the resumption of training using the type after the existing T-37C fleet were grounded after a fatal accident involving FAC2104 on July 20th, 2006.

The Colombian T-37s supplied under the 2007 Grant Authority included;

Serial CN PCN AMARC Arrival Colombian Serial
64-13414 40829 AATE0340 17-OCT-2006 FAC2131
64-13436 40851 AATE0342 24-OCT-2006 FAC2123
67-14740 40995 AATE0341 17-OCT-2006 FAC2125
67-22244 41047 AATE0332 18-SEP-2006 FAC2129
67-22256 41069 AATE0375 09-APR-2007 FAC2127
68-8002 41102 AATE0333 17-OCT-2006 FAC2128
68-8034 41139 AATE0158 26-MAR-2003 FAC2132
68-8055 41160 AATE0343 24-OCT-2006 FAC2130

(Tie-ups for FAC2124 and FAC2126 are not known at present).

The Colombian T-37s supplied under the 2009 Grant Authority were;

Serial CN PCN AMARC Arrival Colombian Serial
66-8000 40960 AATE0153 12-MAR-2003 FAC2133
67-14760 41023 AATE0354 27-FEB-2007 FAC2134
67-22246 41052 AATE0473 31-JUL-2010 FAC2136
68-7993 41089 AATE0465 20-MAR-2009 FAC2135


In 2008 a Grant Authority was authorized for the supply of 20 T-37 to Pakistan to add to their existing fleet, this was followed in 2010 by approval for the supply of an additional 20. These aircraft were re-generated from AMARG.


General Specifications

Powerplant 2 × Continental J69-T-25, 1,025 lbf (4.56 kN) each
Length 29 ft 3 in (9 m)
Wingspan 33 ft 9? in (10.1 m)
Height 9 ft 2 in (2.8 m)
Empty weight 4,056 lb (1,840 kg)
Max. takeoff weight 6,569 lb (2,980 kg)



Maximum speed 425 mph (369 knots, 684 km/h)
Range 932 miles (810 nmi, 1,500 km)
Service ceiling 25,000 ft (7,620 m)