Type certificate ATC 621
Held today by Consolidated Vultee Aircraft Corporation Stinson Division. It covers 3 models; about 25 aircraft on the U.S. register are built to it. 17 approved modifications build on it.
Models under this certificate 3
SR-9C (Army UC-81C), SR-9B (Army UC-81N), SR-9A
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 17 · 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 621.json.