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Boeing Vertol

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The Boeing Vertol (formerly Piasecki) H-21A was a single engine, tandem rotor helicopter acquired by the RCAF in 1954 and used primarily for search and rescue work. The type was also used extensively by both the RCAF and commercial companies in transport duties associated with the construction of the various radar chains (i.e. Mid-Canada, DEW) across Canada. The H-21 B version was virtually identical to the H-21 A except for an increase in the available horsepower of the engine for take-off. The H-44 version was equipped with metal rotor blades and an advanced transmission and could be distinguished from the earlier versions by the covered struts of its landing gear. The H-21 was employed here in Comox by 442 Sqn in the SAR role until replaced by another tandem rotor Boeing Vertol product, the Labrador.

 

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DETAILS

Manufacturer: Originally designed and built by Piasecki Corporation, which eventually became part of Boeing Vertol

Designation: CH-125, CH-127

Model No: H-21A&B, H-44

Role: Transport & SAR Helicopter

TOS: 1954

SOS: 1968No:20

Comox Squadron/Unit Use: 442 SqnService: RCAFSPECIFICATIONS

Crew / Passengers: Three: two pilots & flight engineer plus up to 20 passengers

Powerplant:

One 1,425 hp Wright R-1820-103 engine

Performance

  • Max Speed: 131 mph (211 km/h)
  • Cruising Speed: 90 mph (145 km/h)
  • Service Ceiling: 8,450 ft (2,576 m)
  • Range: 350 m (563 km)

Weights

  • Empty: 8,000 lb (3,629 kg)
  • Gross: 13,500 lbs (6,123 kg)

Dimensions

  • Rotor Diameter: 44 ft 6 in (13.56 m)
  • Length: 86 ft 4 in ( 26.31 m)
  • Height: 15 ft 5 in (4.70 m)

Armament: none

Original Cost: unknown

 

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