Homebuilt GP-1 registrations

2 Homebuilt GP-1 aircraft on the FAA register (FAA model GP-1), newest first.

N-numberYearAircraftBased
N99Z1971Homebuilt GP-1Waterford, PA
N54711968Homebuilt GP-1Waterford, PA

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