Twin piston engined, 5 bladed rotor, heavy-lift helicopter for USMC & US Army. 
The S-56 first flew on 18 Dec 1953.
Specifications S-56 H-37 |
Derivatives & Versions of S-56 H-37 |
| Model | Year | History |
|---|---|---|
| XHR2S-1 1953 | 1953 | |
| H-37A Mojave 1955 | 1955 | Military transport variant for US Army. Redesignated CH-37A/B in 1962 |
| HR2S-1 1955 | 1955 | Production model for USMC. Redesignated CH-37C in 1962 |
| HR2S-1W 1956 | 1956 | Airborne early warning (AEW) helicopter for the US Navy fitted with AN/APS-20E radar. Two built. |
List of Operators of S-56 H-37 |
| Years | Model | Org | |
|---|---|---|---|
| 1956/70 |  US Army Aviation | ||
| 1956/70 | US Marine Corps | ||
| 1978/?? | H-37A Mojave | Aircrane Inc |
Global Distribution of S-56 H-37 |
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