T-37 Tweet
Mission
The T-37 is a twin-engine primary trainer used for training undergraduate pilots, undergraduate navigator and tactical navigator students in fundamentals 
of jet aircraft operation, and instrument, formation, night flying, and low-level navigation. Affectionately known as the "Tweety Bird" or "Tweet," it was the first USAF jet aircraft designed from conception as a trainer (as opposed to a modification such as the T-33). The aircraft is designed for utility, ruggedness and safety. 

Features
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 aircraft is powered by two Continental J69-T-25A engines. The engine is a centrifugal flow gas turbine engine. It has a single air inlet and a single stage turbine directly connected to the compressor on a common rotor shaft. Military power rating for the engine is approximately 1,025 pounds.
The nominal takeoff gross weight of the aircraft is 7,000 pounds. This includes two pilots and full internal fuel.
The aircraft is equipped with a two-position speed brake, spoilers for artificial stall warning, thrust attenuators, oxygen equipment, and an air conditioning and defrosting system. The cockpit has dual controls, ejection seats and a clamshell-type canopy that can be jettisoned. Aircraft are equipped with birdresistant windshields.
The T-37 has 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.
 

Background
The XT-37 prototype made its initial flight on October 12, 1954, and the pre-production T-37A first flew on September 27, 1955. Following modifications, the T-37A entered operational USAF service in 1957. The T-37B became operational in 1959. Similar to the T-37A, it had more powerful engines, a redesigned instrument panel and improved radio communications and navigational equipment. All T-37A's have been modified to T-37B standards. 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 econnaissance missions. 
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 (NATO) 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. 
  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 1,200 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.

General Characteristics
Primary Function:

 

Primary trainer in undergraduate pilot training, undergraduate navigator and tactical navigator training
Builder: Cessna Aircraft Co. 
Power Plant: Two Continental J69-T-25 turbojet engines
Thrust: 1,025 pounds (461.25 kilograms), each engine
Length: 29 feet, 3 inches (8.9 meters)
Height: 9 feet, 2 inches (2.8 meters)
Wingspan: 33 feet, 8 inches (10.2 meters)
Maximum Takeoff Weight: 6,625 pounds (2,981 kilograms)
Speed: 315 mph (Mach 0.4 at sea level)
Ceiling: 35,000 feet (10.6 kilometers)
Range: 460 miles (400 nautical miles)
Armament: T-37B, none; T-37C has provisions for external armament
Unit Cost: $164,854
Crew: Two, student pilot and instructor pilot
Date Deployed: December 1956 
Inventory: Active force, 507; ANG, 0; Reserve 0