Type certificate H-2
Held today by Sikorsky Aircraft Corporation. It covers 1 model. Last revised June 10, 1960 (revision 7). 12 approved modifications build on it.
Models under this certificate 1
S-51
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 12 · 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/H-2.json.