SIKORSKY H-37 MOJAVE
H-37 SERVICE
| Manufacturer: | Sikorsky Aircraft Division, United Aircraft Corp., Bridgeport, Connecticut, USA |
| Model: | S-56 |
| Designations: | H-37; HR2S |
| Name: | Mojave (US Army) |
| First official flight: | (XHR2S-1) 18/12/1953 |
| Factory production period: | 1953 - 1960 |
| Primary service period: | 1956 - 1960's |
| Last official flight: | (CH-37B) ? |
H-37 VARIANTS AND PRODUCTION
XHR2S-1
1953, prototype, twin-engined, 5-bladed
rotor, heavy-lift helicopter for USMC.
Produced 1953
Sikorsky Bridgeport, Connecticut (S)
| BuNo.133732 / 133735 | ? |
Total: 004 |
HR2S-1
1955, as XHR2S-1, fuselage refinements.
Redesignated as CH-37C in 1962.
Produced 1955 - 1959
Sikorsky Bridgeport, Connecticut (S)
| BuNo.138418 / 138424 | ? | |
| BuNo.140314 / 140325 | ? | |
| BuNo.141603 / 141617 | ? | |
| BuNo.145855 / 145875 | ? | Total: 055 |
| 71 additional airframes cancelled. | ||
HR2S-1W
1957, as HR2S-1, AEW version, nose radome.
Produced 1957
Sikorsky Bridgeport, Connecticut (S)
| BuNo.141646, 141647 | ? |
Total: 002 |
H-37A Mojave
1955, as YH-37, engine / fin upgrade for US Army.
4 redesignated as CH-37A in 1962.
Produced 1955 - 1960
Sikorsky Bridgeport, Connecticut (SI)
| 54-993 / 54-1001 | ? | |
| 55-610 / 55-650 | ? | |
| 57-1642 / 57-1661 | ? | |
| 58-0983 / 58-1006 | ? | Total: 094 |
| 9 additional airframes cancelled. | ||
|
Grand Total: 155 |
H-37 CONVERSIONS
US Army
| YH-37 | 1 | HR2S-1, 1954, prototype conversion for evaluation / tests. |
| H-37B | 90 | H-37A, 1961, redesigned cargo doors, upgraded systems. |
| (CH-37B) | 90 | 1962, redesignation of H-37B. |
- Two prototypes were built by Westland Helicopters Ltd., England using Model S-56
components and turboshaft engines as the Westland Westminster in 1958.
Further development was abandoned. G-APLE (c/n: WA.1), G-APTX (c/n: WA.2).
- One prototype built using Model S-56 components as the Sikorsky S-60 Skycrane
in 1959 with civil reg.: N807. Later developed into the Sikorsky Model
S-64.