45 hp Salmson
Later rebuilt with a Douglas-Ford, an air-cooled conversion of the Ford Model A engine.
The following photo is from the May 15, 1934 Sportsman Pilot page 32.
Press release photo from 1937 of the Knight Twister with the Douglas-Ford engine.
Aerofiles.com rates this engine at 50 hp. The caption on this photo rates it at 70 hp.
This photo shows some "editing" of an apparent aviation ignorant news paper guy. The original photo I am sure would show the mechanic holding up the tail of the aircraft with his right hand. For some unknown reason someone did not like this. The mechanic's right arm was amputated. The shadow of his right arm was erased and all the toes on his right foot removed. Mechanics get no respect.
