Type certificate LTC-29
Held today by Stolp-Adams Company, earlier by Sikorsky. It covers 3 models. Last revised January 5, 1948 (revision 1). 2 approved modifications build on it.
Models under this certificate 3
Army R-5A, (Navy) HOS-1, Army YR-6A
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 2 · 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/LTC-29.json.