Original 1956 Pratt & Whitney Twin Wasp R-2000-9A and R-2000-11 Parts Manual

Pratt & Whitney Wasp R-1340 Parts Manual

Pratt Whitney Twin Wasp C Series Overhaul Manual 1941

Original 1961 Pratt & Whitney Twin Wasp R-2000-4/4A/9/9A/11 Parts Manual

Pratt Whitney Twin Wasp C4 Overhaul Supplement Manual

Pratt & Whitney Twin Wasp C3 C4 Engines Overhaul Manual Accessories 1944 1st Ed

Pratt & Whitney Helicopter Wasp Jr R-985, Wasp R-1340 Maintenance Manual, Excell

1957-1959 Pratt & Whitney Double Wasp R-2800-44/48/97 Parts Manual