Type certificate ATC 21 Wright
Held today by Wright Aeronautical Division Curtiss-Wright Corporation. It covers 5 models. 1 approved modification build on it.
Models under this certificate 5
Whirlwind R-975B, Whirlwind R-975, Whirlwind R-975D, Whirlwind R-975A, Whirlwind R-975E
The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.
FAA orders on these designs 0 · newest first
None in the current files.
Approved modifications 1 · companies holding the most
Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 5, 2026. Connections as data: /graph/certificate/ATC 21 Wright.json.