Type certificate E-247
Held today by Pratt & Whitney Division. It covers 7 models. Last revised March 21, 1960 (revision 8). 1 approved modification build on it.
Models under this certificate 7
Wasp Major B6, Wasp Major B7, Wasp Major CB2, Wasp Major B13, Wasp Major TSB3-G, Wasp Major B5, Wasp Major B14
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/E-247.json.