Type certificate ATC 567
Held today by Rankin Joe. It covers 2 models; about 5 aircraft on the U.S. register are built to it. 6 approved modifications build on it.
Models under this certificate 2
Porterfield 35, Porterfield 35-70
On this site
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 6 · 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/ATC 567.json.