Type certificate E-308
Held today by Rolls-Royce Limited, earlier by Rolls-Royce Plc. It covers 5 models. Last revised July 8, 2011 (revision 12). 1 approved modification build on it.
Models under this certificate 5
Conway 508, Conway 505, Conway 509, Conway 509A, Conway 508A
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-308.json.