The C-106 Loadmaster was a twin-engined high-wing cantilever monoplane with a retractable tailwheel landing gear. It was powered by two 600 hp Pratt & Whitney R-1340 engines. Two company owned P260 demonstrators were built and given the military designation C-106 Loadmaster. An order for 500 was cancelled due to a shortage of plywood.
Military designation for company owned P260 prototype with two R-1340-S3H1 engines.
Military designation for company owned P260 prototype with two R-1340-AN-2 engines.