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Piasecki / Vertol VZ-2 / HUP Retriever

Piasecki · Utility/Transport · USA · Early Jet (1946–1969)

Piasecki / Vertol VZ-2 / HUP Retriever — Utility/Transport
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The Piasecki HUP Retriever or H-25 Army Mule, later UH-25, is a compact single radial engine, twin overlapping tandem rotor utility helicopter developed by the Piasecki Helicopter Corporation of Morton, Pennsylvania. Designed to a United States Navy specification, the helicopter was produced from 1949 to 1954, and was also used by the United States Army and foreign navies. The HUP/H-25 was the first helicopter to be produced with an autopilot and also the first to perform a loop.

Specifications

Category
Rotorcraft
Sub-Category
Utility/Transport
Domain
Defence
Era
Early Jet (1946–1969)
Country
USA
Manufacturer
Piasecki
Operator
USN / USMC / Canadian Navy / French Navy
Status
Retired
Service Entry
1949
Produced
339
Propulsion
Piston
Engine
Continental R-975-46A radial
Thrust / Power
550 hp
Launch
Ground
Length (ft)
32.2
Wingspan (ft)
35 (each tandem)
Empty Weight (lb)
3827
MTOW (lb)
6100
Payload (lb)
1500
Endurance (hr)
3
Service Ceiling (ft)
11000
Range (mi)
360
Max Speed (mph)
108