Piasecki CH-21C Shawnee

A picture of the Piasecki CH-21C Shawnee

The H-21 was the fourth tandem rotor helicopter design to come from Piasecki.  It was first flown in 1949 and was used by the U.S. Army, U.S. Air Force, Canadian Air Force, French Navy, and West German Air Force.  The CH-21C was used as an assault transport during the early years of American involvement in the Vietnam War.  It could carry 20 troops at a time but was considered very vulnerable to ground fire.  It was the primary helicopter used in Vietnam until 1964 when the Army began to replace it with UH-1 and CH-47. 

Rotor Diameter

44 ft 6 in. each

Length

52 ft 7 in.

Height

15 ft 4 in.

Weight

10,223 lbs (loaded)

Maximum Speed

132 MPH

Service Ceiling

19,200 ft

Range

400 miles

Engines

One Wright R-1820-103 radial with 1,425 horsepower

Crew

2 with 20 passengers

Manufacturer
Piasecki

Markings
93rd Transportation Company, South Vietnam, 1962

Serial Number
56-2159

Designation
CH-21C

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