Ajet trainer is ajet aircraft for use as atrainer, whether for basic or advancedflight training. Jet trainers are either custom designs or modifications of existing aircraft. With the introduction of military jet-powered aircraft towards the end of World War II it became a requirement to train pilots in the handling of such aircraft.

The first generation of trainers in the 1940s were modified from existing designs like the Gloster Meteor andLockheed T-33 but with these were followed by custom training aircraft like theAero L-29 Delfín and theBAC Jet Provost.

As training developed different air forces used jet trainers for different phases of training. Although most air forces continued to use piston or later turboprop aircraft for basic training, a number of jet trainers like theCessna T-37 Tweet appeared for the early stages of pilot training. Pilots who were picked to fly fighter or strike aircraft then went on to fly more advanced training aircraft like theHawker Siddeley Gnat.

As the early jet-trainers became obsolete then further generations have appeared, the British using the single-engineBAE Systems Hawk while the French ordered theDassault/Dornier Alpha Jet. In the Warsaw Pact theAero L-39 Albatros became the standard jet trainer.

As the jet trainer developed it was also used for weapon training, which led to some trainers being modified as light strike aircraft; for example, theCessna T-37 Tweet was developed into theCessna A-37 Dragonfly.

Modern jet trainers are structurally strengthened in order to allow high stress maneuvers and aerobatics.

Below is a list of some current and former jet trainers

• Aircraft by type
• Trainer aircraft
• Jet aircraft

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