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Helicopter 1 (HKP 1)
Piasecki H-21

Role: Fleet helicopter
Manufactor: Piasecki-Boeing
In service: 1956-1972
Crew: 3 - Pilot, observer, sonaroperator
Rotordiameter 13,4m
Length: 16,0m
Heigth: 4,7m
Empty weight: 3600kg
Take off weight: 6515kg
Powerplant: 1 × Curtis-Wright R-1820. 1070 kW (1450 hk)
Top speed: 205km/ h
Range: 580km
Ceiling: 2880m
Armament: 6x m/51 Depth charges or 2x 400mm ASW torpedo
Sensors: Dipping sonar