
Andrew Szep designed and built the HFC-125 over a five year period, finished in 1979.
Registered G-BCPX PFA 012-00019/ msn AS.001, power was a Lycoming O-290-G engine.

The registration was cancelled on 2000-01-11 and it resides in the Magyar Műszaki és Közlekedési Múzeum in Hungary in 2014.