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Type certificates · aircraft · rotorcraft · current

Type certificate H1AL

Held today by Risley Lester W., earlier by Boeing Company, Vertol Division\Sholton. It covers 1 model. Last revised September 12, 1974 (revision 1). 4 approved modifications build on it.

Models under this certificate 1

H-21B

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

Precise Flight INC 2Seaplanes North LLC 1Electronics International 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/H1AL.json.