The T-37 Tweet is a twin-engine jet used for training undergraduate pilots, undergraduate navigator and tactical navigator students in fundamentals of aircraft handling, and instrument, formation and night flying.
The T-37A made its first flight in 1955 and went into service with the Air Force in 1956. The T-37B became operational in 1959. All T-37a's have been modified to T-37B standards.
A contract was awarded in August 1989 to Sabreliner Corp. for the T-37B Structural Life Extension Program. The contract included the design, testing and production of kits, installed by a U.S. Air Force contract field team, which modified or replaced critical structural components for the entire fleet, extending the capability of the T-37 into the next century. More than 1,000 T-37s were built, and 507 remain in the U.S. Air Force inventory. All have been repainted in a distinctive dark blue and white to help formation training and to ease maintenance.
The twin engines and flying characteristics of the T-37 give student pilots the feel for handling the larger, faster T-38 Talon or T-1A Jayhawk later in the undergraduate pilot training course. The instructor and student sit side by side for more effective training. The cockpit has dual controls, ejection seats and a clamshell-type canopy that can be jettisoned.
The T-37 has a hydraulically operated speed brakes, tricycle landing gear and a steerable nose wheel. Six rubber-cell, interconnected fuel tanks in each wing feed the main tank in the fuselage.
The T-37B has improved radio navigational equipment, UHF radio and redesigned instrument panels. Many foreign air forces fly the T-37B, including those of Thailand, Greece, Chile, Jordan, Turkey and Pakistan. Students from 12 North Atlantic Treaty Organization countries train in T-37B's at Sheppard Air Force Base, Texas. Flying the T-37C are the air forces of Portugal, Peru, Colombia and Greece, among others.
The T-37C is similar to the T-37B, but has provisions for both armament and wingtip fuel tanks. The plane can carry two, 250-pound (112.5 kilogram) bombs. Associated equipment includes computing gun sights and a 16mm gun camera. The aircraft can be fitted with cameras for reconnaissance missions.