The U.S. aircraft register, updated daily
Type certificates · engine · current

Type certificate E-265

Held today by Neptune Aviation Service INC., earlier by Westinghouse\Steward-Davis Incorporated. It covers 4 models. Last revised August 8, 2012 (revision 9)..

Models under this certificate 4

J34-WE-34, W-340, J34-WE-36, 24C4D-1

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.

Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 21, 2026. Connections as data: /graph/certificate/E-265.json.