USMC utility transport helicopter developed in 1953. The original designation was HR2S-1 but this was changed to CH-37C in the redesignation of all US armed forces helicopters in 1962.
The assault transport helicopter could carry up to either 36 passengers, three jeeps or a single 105 mm antitank gun. Sikorsky was experimenting with blades widths; the wider chord upgrade was used for this entry.
Design authority: Sikorsky Aircraft Division, United Aircraft and Transport Corporation
Primary manufacturer: Sikorsky Aircraft Division, United Aircraft and Transport Corporation
Parent type: Sikorsky S-56/H-37
Aircraft status: No longer flying
VTOL type: Helicopter
Lift devices: 1 Single main rotor
Dedicated control device: 1 Tail rotor
Crew required: 2 in Side-by-side arrangement
Landing gear: Wheels (all retractable)