Type certificate A18EA
Held today by Waco Classic Aircraft Corporation, earlier by Windward Aviation, Great Lakes, Great Lakes (Russel Dean Franklin, JR.), Chaparral Motors, Inc.\Great Lakes Aircraft Company, LLC (John Duncan), Windward Aviation\Great Lakes\Great Lakes (Russel Dean Franklin\Jr.)\Chaparral Motors\Inc.\Great Lakes Aircraft Company\Llc (John Duncan). It covers 3 models; about 188 aircraft on the U.S. register are built to the designs it names. Last revised February 14, 2022 (revision 14). 8 FAA orders name its designs, and 62 approved modifications build on it.
Models under this certificate 3
2T-1A-1, 2T-1A, 2T-1A-2
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 8 · newest first
Approved modifications 62 · 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/A18EA.json.