The MGW for is actually quoted in the Pilot’s Handbook as an Overload Gross Weight.  Developed in 1945, the passenger helicopter can carry up to 10 people.  For the various operators, there are the U.S.C.G HRP-1 Rescuer and U.S. Navy HRP-1 designations.

The aircraft was colloquially refrerred to as "The Flying Banana".


Data on design, manufacture and status

Design authority: Piasecki Helicopter Corporation

Primary manufacturer: Piasecki Helicopter Corporation

Parent type: Piasecki PV-3/HRP-1

Aircraft status: No longer flying


Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Tandem (Fore/aft) (x2)

Crew required: 2

Crew seating: Other

Landing gear: Wheels (non-retractable)

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height: 4.15 m 13.6 ft
Overall Length: 25.70 m 84.3 ft
Overall Width: 12.50 m 41.0 ft
Airframe Dimensions
Airframe Length: 14.41 m 47.3 ft
Airframe Width:  
Airframe Height: 4.15 m 13.6 ft
Landing Gear Dimensions
Landing Gear Base: 4.94 m 16.2 ft
Landing Gear Track: 3.05 m 10.0 ft
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Cruise Speed: 80 mph (128.748 km/h)

Max Gross Weight (ground): 3,266 kg 7,200 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 3,266 kg 7,200 lb
Empty Weight: 2,287 kg 5,041 lb
Useful Load: 979 kg 2,159 lb
Empty Weight Fraction: 0.700
Climb Performance
Max Rate of Climb: 5 m/s 950 fpm
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE:  
Max Level Flight Speed: 161 km/h 87 kts
Never Exceed Speed:  
Service Ceiling: 3,170 m 10,400 ft
Range and Endurance
Max Range:  
Max Endurance:  

Engine Details

Aircraft powerplant (lift and/or propulsion)

Provided powerplant data is for uninstalled, sea level, static operations.

Number of engines: 1
Designation: P&W R-1340-AN-1 reciprocating
Manufacturer: Pratt & Whitney
Normal Ratings
Max continuous:  
Take-off / rated:  
OEI Ratings
OEI contingency:  
OEI continuous:  
OEI 30-second:  
OEI intermediate:  

Primary Lift Device

Data on primary lift devices such as main rotors

Blades have NACA 0012 section

Main Rotor Characteristics
Diameter: 12.50 m 41.00 ft
RPM: 250.0 rpm 250.0 rpm
Direction of Rotation: Counter-rotating
Hub Type:
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord: 0.335 m 1.10 ft
Blade Tip Geometry: Tapering chord in outer tip region
Blade Twist:  
Number of Blades: 3
Main Rotor Derived Characteristics
Disc Area: 122.66 m² 1320.3 ft²
Disc Loading: 13.31 kg/m² 2.727 lb/ft²
Solidity: 0.0511
Main Rotor Blade Derived Characteristics
Blade area per blade: 2.09 m² 22.5 ft²
Tip Speed: 163.58 m/s 536.7 fps

Primary Control Device

Data on primary control devices such as tail rotors

Tail Rotor Characteristics
Configuration: Unknown
Direction of Rotation: Unknown
Tail Rotor Blade Characteristics
Number of Blades:  
Blade Construction: N/A
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area:  
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

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