Type certificate TC 226
Held today by Franklin Engine Company. It covers 8 models; about 125 aircraft on the U.S. register are built to it. 2 approved modifications build on it.
Models under this certificate 8
4AC-199B2, 4AC-199E4 (O-200-1), 4AC-199D3, 4AC3-199H3 (O-200-5), 4AC-199E3, 4AC-199D2, 4AC-199B3, 4AC-199E2
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 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 7, 2026. Connections as data: /graph/certificate/TC 226.json.