HUP Retriever
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The Piasecki HUP Retriever was a twin-rotor utility helicopter designed for the US Navy, which first flew in March 1948. It entered service with the Navy and USMC from the following year.
It also served with the US Army as the H-25, a designation adopted by the other services in 1962. The final units were withdrawn from US service in 1964.
It also served with the French Navy from 1953 to 1965.
Specifications (HUP-3 Retriever)
General characteristics
- Crew: two pilots
- Capacity: 4 passengers
- Length: 56 ft 11 in (17.35 m)
- Main rotor diameter: 35 ft 0 in (10.67 m)
- Height: 12 ft 6 in (3.81 m)
- Main rotor area: 1,924 ft² (179 m²)
- Empty: 3,928 lb (1,782 kg)
- Loaded: 5,750 lb (2,608 kg)
- Maximum takeoff: 6,100 lb (2,767 kg)
- Powerplant: 1× Continental R-975-46A radial, 550 hp (410 kW)
Performance
- Maximum speed: 105 mph (169 km/h)
- Range: 340 miles (547 km)
- Service ceiling: 10,000 ft (3,048 m)
- Rate of climb: 100 ft/min (305 m/min)
- Main rotor loading: 3 lb/ft² (15 kg/m²)
- Power/mass: 0.09 hp/lb (0.16 kW/kg)
Military Operators
- Canada, France, United States (Army, Navy).
Related content
Related development:Comparable aircraft:
Designation sequence: YH-22 - OH-23 - YH-24 - H-25 - XH-26 - H-27 - XH-28
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