List of trijet aircraft

The following is a list of trijet aircraft.

Proposed or suspended trijet developments

 * Boeing 747-300 Trijet – downsized 747 to compete with the DC-10 and L-1011, changed to four engines
 * Blended Wing Body Trijet – proposed design based on the Boeing X-48
 * McDonnell Douglas MD-XX – stretched derivative of the DC-10, project shelved
 * North American NR-349 – proposed interceptor derivative of the A-5 Vigilante, cancelled
 * Airbus twin-tail trijet, – status unknown
 * Dassault Supersonic Business Jet – suspended
 * Aerion AS2 - Suspended
 * Sukhoi-Gulfstream S-21
 * Boom Technology Overture - 3-engine design proposed, but changed to 4-engine
 * Boeing 777 – Originally envisioned as a trijet 767 in the 1970s to compete with the DC-10 and the L-1011; later became a new twin-engine design.