Vertipedia - Piasecki HRP-1 Rescuer

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".

Overview

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

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift devices: 2 in Tandem (Fore/aft) configuration

Crew required: 2 in Other arrangement

Landing gear: Wheels (non-retractable)

Key Characteristics

Data on key physical features

Aircraft Details

Data on aircraft configuration, weights, flight performance and equipment

Layout and Dimensions

Weights and Performance

Engine Details

Primary Lift Device

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:

Cruise Speed: 80 mph (128.748 km/h)

Weights
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

Climb Performance
Max Rate of Climb:	5 m/s	950 fpm

Hover Performance
Hover Ceiling IGE:
Hover Ceiling OGE:

Limitations
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:

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

Powerplant
Number of engines:	1
Designation:	P&W R-1340-AN-1 reciprocating
Manufacturer:	Pratt & Whitney

Normal Ratings
Max continuous:
Take-off / rated:
Intermediate:
Maximum:

OEI Ratings
OEI contingency:
OEI continuous:
OEI 30-second:
OEI intermediate:

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

Tail Rotor Characteristics
Diameter:
Configuration:	Unknown
Direction of Rotation:	Unknown
RPM:

Tail Rotor Blade Characteristics
Number of Blades:
Blade Construction:	N/A
Blade Chord:
Blade Twist:

Tail Rotor Derived Characteristics
Disc Area:
Solidity:

Tail Rotor Blade Derived Characteristics
Tip Speed:
Blade Area (per blade):

References

References and sources used

Erection and Maintenance Instructions for Navy Model HRP-1 Helicopters

Published Under the Authority of the Secretary of the Air Force and the Chief of the Bureau of Aeronautics
AN 01-250-HA-2, TBA (page xii)
Report or Technical Manual

Helicopters from "A to Z" | Part I

Ralph P. Alex
AHS Newsletter, 1961, October, 1961 (page 12)
Periodical