Piper J3P-50
50 hp Lenape LM-3
This engine was former the Aeromarine AR-3. Aeromarine was sold to Lenape Aircraft & Motors Inc in 1938. These Cubs seem to be the faster of the 50 hp Cubs. In a Cub race at the Miami Air Races in 1938 one of these finished first.
Oshkosh 1974