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Type certificates · aircraft · small airplane · current

Type certificate TC 644

Held today by Miller P. D., earlier by Congrete\Skagit County Wa. It covers 1 model. 4 approved modifications build on it.

Models under this certificate 1

Y-1S

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 4 · companies holding the most

Swift Fuels LLC 1Ceconite Division of Poly-Fiber INC. 1Ceconite Division of Poly-Fiber INC 1Andrew D. Humphrey 1

Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 5, 2026. Connections as data: /graph/certificate/TC 644.json.