The plane led to the subsequent construction of the Lefebvre Busard, a single-seat racing aircraft built marketed for homebuilding.

The PF.204 Busard was designed and built by Monsieur Max Plan for personal use as a racing and sporting monoplane.

By 1956 it had received several modifications, the most noticeable being a revised engine cowling and enlarged cockpit; at this point it was redesignated the PF.

[2] At that time there were plans to replace the Minié with a 90 hp (67 kW) Continental C90 4-cylinder horizontally opposed engine, producing the PF.215.

[3] By 2006 the aircraft was in storage at the Musée Regional de l'Air,[4] Angers - Loire Airport, France.