List of United States Tri-Service aircraft designations

Only aircraft designated after the adoption of the Tri-Service system are listed below.

[7] Designations YF-110 and YF-112 through YF-116 were acquired (captured or purchased) foreign aircraft used for evaluation and aggressor training.

[9][10] Unlike most other categories of aircraft, the introduction of the tri-service designation system in 1962 did not result in a wholesale redesignation of helicopters.

Only aircraft designated after the adoption of the Tri-Service system are listed below.

In addition to aircraft intended to support military operations, the unified system includes experimental craft designed to push the boundaries of aeronautical and aerospace knowledge.

Lockheed XH-51