Type certificate H3SO
Held today by Richards Heavylift Helo INC., earlier by Wilco Aviation, Southern Aero CORP., Unc Helicopter, Inc.,Us Helicopter, Inc.\S.M. & T. Aircraft. It covers 4 models. Last revised September 20, 2023 (revision 17). 47 approved modifications build on it.
Models under this certificate 4
UH-1H, UH-1B, UH-1A, T-53-L-1A
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 47 · 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/H3SO.json.