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Boeing T-43

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Boeing T-43

The Boeing T-43 is a retired modified Boeing 737-200 that was used by the United States Air Force for training navigators, now known as USAF combat systems officers, from 1973 to 2010. Informally referred to as the Gator (an abbreviation of "navigator") and "Flying Classroom", nineteen of these aircraft were delivered to the Air Training Command (ATC) at Mather Air Force Base, California during 1973 and 1974. Two additional aircraft were delivered to the Colorado Air National Guard at Buckley Air National Guard Base (later Buckley Space Force Base) and Peterson Air Force Base, Colorado, in direct support of cadet air navigation training at the nearby U.S. Air Force Academy. Two T-43s were later converted to CT-43As in the early 1990s and transferred to Air Mobility Command (AMC) and United States Air Forces in Europe (USAFE), respectively, as executive transports. A third aircraft was also transferred to Air Force Materiel Command (AFMC) for use as the "Rat 55" radar test bed aircraft and was redesignated as an NT-43A. The T-43A was retired by the Air Education and Training Command (AETC) in 2010 after 37 years of service.

On 27 May 1971, the United States Air Force (USAF) placed an order for 19 T-43s, modified versions of the Boeing 737-200 as a replacement for the USAF's aging fleet of Convair T-29 navigation trainers, as part of the Undergraduate Navigator Training System. The Boeing aircraft was selected in preference to a trainer based on the Douglas DC-9.

From its entry into service in 1974 until the mid-1990s, the T-43As were used for all USAF Undergraduate Navigator Training. Starting in the mid-1990s, the T-43As were used for USAF Undergraduate Navigator/Combat Systems Officer training with the exception of those USAF navigators/CSOs slated for the F-15E and B-1B.

In 1976, with the U.S. Navy's retirement of its T-29 aircraft and deactivation of its associated Training Squadron Twenty-Nine (VT-29) at NAS Corpus Christi, Texas, those student naval flight officers destined for land-based naval aircraft such as the P-3 Orion, including its EP-3 variant, and various versions of the C-130 in U.S. naval service, began training in USAF T-43s at Mather AFB under a program known by USAF as "Interservice Undergraduate Navigator Training" (IUNT) and by the U.S. Navy as the NAV pipeline for training student naval flight officers slated for eventual assignments to land-based naval aircraft.

Externally, the T-43A differs from the civilian Boeing 737-200 aircraft by having more antennas and fewer windows.

The T-43A has stations on board for twelve navigator students, six navigator instructors, as well as a pilot and co-pilot. The student training compartment was equipped with avionics gear as used in contemporary operational aircraft from the mid-1970s to the early 2000s. This included search and weather radar; VHF omnidirectional range (VOR) and tactical air navigation system (TACAN) avionics systems; a long range navigation system (LORAN-C); an inertial navigation system (INS); radar altimeter; and all required VHF, UHF and HF communications equipment. Five periscopic sextant stations spaced along the length of the training compartment were used for celestial navigation training. However, with the advent of the Global Positioning System (GPS), student navigators were no longer taught celestial navigation or LORAN.[citation needed]

The T-43A aircraft had considerably more training capability than the aircraft it replaced, the reciprocating-engine, propeller-driven T-29 Flying Classroom that was based on the Convair C-131 Samaritan. VT-29 had been training student naval flight officers for various land-based naval aircraft such as the P-3 Orion, EP-3 Aries, and variants of the Lockheed C-130 Hercules while the 323 FTW and its predecessor organizations at Mather AFB, the former Ellington AFB (now Ellington Field Joint Reserve Base, the former James Connally Air Force Base, and the former Harlingen Air Force Base had been training undergraduate navigators for all USAF aircraft with a navigator, weapon systems officer, and/or electronic warfare officer, ranging from bomber, cargo and air refueling aircraft such as the B-52 Stratofortress, C-130 Hercules and KC-135 Stratotanker, to fighter and reconnaissance aircraft that included the F-4C, F-4D, F-4E and RF-4C Phantom II, the F-111, and the RC-135 RIVET JOINT aircraft, as well as those recruited with previous experience in other aircraft to the SR-71.

Inside each T-43A training compartment were two minimum proficiency, two maximum proficiency and 12 student navigator stations. Two stations form a console, and instructors could move their seats to the consoles and sit beside students for individual instruction. The large cabin allows easy access to seating and storage, and reduced the distance between student stations and instructor positions.

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