Piasecki PV-18 / HUP Retriever / H-25 Army Mule

Utility Helicopter

Piasecki HUP-2 Retriever French Navy 130077 © Karsten Palt
Photo ©: Karsten Palt
The Piasecki HUP Retriever / H-25 Army Mule is a single-engine tandem rotor light utility and rescue helicopter produced by the US-American manufacturer Piasecki Helicopter Corp.. In 1962 remaining HUP-2 and HUP-3 were redesignated UH-25B respectively UH-25C.
Crew2
Passengers4
Propulsion1 Radial Engine
Engine ModelContinental R-975-46A
Engine Power410 kW550 hp
Speed169 km/h91 kts
  105 mph
Service Ceiling3.048 m10.000 ft
Range546 km295 NM
339 mi.
Empty Weight1.782 kg3.929 lbs
max. Takeoff Weight2.767 kg6.100 lbs
Rotor Blades (main/tail)3/3
Main Rotor Diameter10,67 m35 ft 0 in
Tail Rotor Diameter10,67 m35 ft 0 in
Rotor Disc Area89,4 m²962 ft²
Length (Fuselage)9,80 m32 ft 2 in
Length17,35 m56 ft 11 in
Height3,81 m12 ft 6 in
First Flight03/1948
Production Statusout of production
Production Range1948-1954
Total Production339
Data for (Version)Piasecki HUP-3 (UH-25C)
VariantsHUP-1, HUP-2, HUP-2S, HUP-3, H-25A Army Mule

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