PZL Pegaz 20

Manufactured by Engine Factory No. 1 in Warsaw-Okecie under licence from the British company Bristol. It replaced the Pegasus VIIIA engine in production. The Pegasus XX was equipped with a supercharger, reduction gear and a Claudel-Hobson AVT 80BZ carburettor made by Motolux. The engine drove an adjustable-pitch, two-position, three-blade, metal De Havilland Hamilton Standard propeller. This powerplant was used in the PZL-37 Los and PZL-46 Sum bomber aircraft.

The engine on display was exhibited in the Polish pavilion at the World’s Fair in New York in the summer of 1939. After the outbreak of war, it remained in the USA in private hands. In 2006, the exhibit was donated to the collection of the Polish Aviation Museum by Mr Witold Dewicki of Fowlerville, Michigan.