Type certificate E3SO
Held today by Continental Aerospace Technologies, INC., earlier by Continental\Teledyne Continental Motors, Continental\Teledyne Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Continental\Teledyne Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Continental\Teledyne Continental Motors, Continental\Teledyne Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Teledyne Continental Motors\Continental Motors, Continental\Teledyne Continental Motors, Continental\Teledyne Continental Motors, Continental\Teledyne Continental Motors, Continental\Teledyne Continental Motors. It covers 20 models; about 3,551 aircraft on the U.S. register are built to the designs it names. Last revised April 6, 2020 (revision 12). 35 FAA orders name its designs, and 41 approved modifications build on it.
Models under this certificate 20
IO-550-F, IO-550-G, IOF-550-B, IOF-550-E, IOF-550-L, IOF-550-D, IOF-550-N, IO-550-L, IOF-550-C, IOF-550-P, IO-550-N, IO-550-B, IOF-550-F, IO-550-R, IOF-550-R, IO-550-P, IO-550-A, IO-550-E, IO-550-D, IO-550-C
Engine series
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 35 · newest first
Approved modifications 41 · 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/E3SO.json.