Sikorsky H-34: Piston-engined Military Helicopter : r/aviation

H-34 Sikorsky Choctaw - Cactus Air Force

695 58/2 Images, Stock Photos, 3D objects, & Vectors

NAS Grosse Ile Aircraft

US Army Sikorsky H-34 Choctaw air assault exercise

What is the design philosophy behind the Sikorsky UH34 anti-submarine helicopter's piston engine and unusual nose housing of the engine? - Quora

Sikorsky H-34 - Wikipedia

Arsenal - UH-34 Choctaw

Sikorsky H-34 - Wikipedia

Still Going Strong - Vertical Mag

Sikorsky built hi-res stock photography and images - Alamy

Aircraft

Sikorsky S-56 – Igor I Sikorsky Historical Archives

Sikorsky S-58 - Heli Archive