Homebuilt S-4 registrations

2 Homebuilt S-4 aircraft on the FAA register (FAA model S-4), newest first.

N-numberYearAircraftBased
N142CG1990Homebuilt S-4Wimauma, FL
N767LS—Homebuilt S-4Calabasas, CA

Source: FAA Aircraft Registry, October 2026. Each N-number links to its aircraft page with registration record, history and accident data.