This is the Sport Plane Power Inc. and was associated with Nelson (see) to adapt its engines to light aircraft. The staff of both companies was the same.

-It adapted the Nelson H63C and the 43/48 giving 96 HP (the latter was a double engine with a single propeller.

-But the project considered as the main one of the brand was the adaptation of the BMW motorcycle engine model K100A, for aviation.

“SPP-BMW, K-100A”

This liquid-cooled four-cylinder engine gave 100 hp at 8,000 rpm. It was tilted to one side with a double overhead cam.