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#1598

Sikorsky CH-37 Mojave

🇺🇸 United States ·first flew 1953· cargo helicopter

Sikorsky CH-37 Mojave, photo 1 of 3
1/3 Clemens Vasters from Viersen, Germany· CC BY 2.0

what is it?

The Sikorsky CH-37 Mojave (company designation S-56) is an American large heavy-lift military helicopter of the 1950s. It entered service as the HR2S-1 Deuce with the USMC in 1956, and as the H-37A Mojave with the U.S. Army that same year. In the early 1960s, the designation was standardized to CH-37 for both services, with the HR2S-1 redesignated as CH-37C specifically.

How to recognise it: 2 piston engines · 22 m main rotor

base stats

  • speed 209 km/htop speed
  • range 233 kmwithout refuelling
  • seats 26passengers
  • size 14.1 tmax take-off weight
  • built 154made in total

Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).

fun facts

  • First flew 73 years ago, in 1953.
  • Top speed is 1.6× a car on the Dutch motorway (130 km/h).
  • Rotor of 22 m: about 5 cars parked nose to tail.
  • Fully loaded it can weigh as much as 2 African elephants (~6 t each).

piston: A car-like piston engine turning a propeller: simple and cheap, the classic small plane.

spec sheet

first flight
1953
introduced
1956
status
retired
number built
154
role
cargo helicopter
origin
🇺🇸 United States
makers
Sikorsky Aircraft Corporation
engines
2× Pratt & Whitney R-2800-54 Double Wasp
passengers
26
length
19.6 m
rotor diameter
22 m
height
6.7 m
max take-off weight
14.1 t
top speed
209 km/h
cruise speed
185 km/h
range
233 km
ceiling
2,652 m

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.

Sources: Wikidata Q2164644, Wikipedia: Sikorsky CH-37 Mojave (CC BY-SA 4.0).Updated 2026-10-24.

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