Type certificate ATC 23
Held today by Wright Aeronautical Division Curtiss-Wright Corporation. It covers 2 models. 1 approved modification build on it.
Models under this certificate 2
Whirlwind GR-540E, Whirlwind R-540 Series
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 7, 2026. Connections as data: /graph/certificate/ATC 23.json.