Developed in 1946 and designated Whirlaway by the U.S. Navy. The two-engined aircraft had a transmission that would drive both rotors from one engine if there was a failure in the other.

Overview

Data on design, manufacture and status

Design authority: McDonnell Aircraft Corporation

Primary manufacturer: McDonnell Aircraft Corporation

Parent type: No type defined

Aircraft status: No longer flying

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Tandem (Lateral) (x2)

Crew required: 1-2

Crew seating: Side-by-side

Landing gear: Wheels (non-retractable)

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height:  
Overall Length:  
Overall Width:  
Airframe Dimensions
Airframe Length:  
Airframe Width:  
Airframe Height:  
Landing Gear Dimensions
Landing Gear Base:  
Landing Gear Track:  
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Cruise Speed: 90 mph (144.841 km/h)

Weights
Max Gross Weight (ground): 4,990 kg 11,000 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 4,990 kg 11,000 lb
Empty Weight: 3,629 kg 8,000 lb
Useful Load: 1,361 kg 3,000 lb
Empty Weight Fraction: 0.727
Climb Performance
Max Rate of Climb: 7 m/s 1,300 fpm
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE:  
Limitations
Max Level Flight Speed: 193 km/h 104 kts
Never Exceed Speed:  
Service Ceiling: 3,962 m 13,000 ft
Range and Endurance
Max Range: 483 km 261 nm
Max Endurance:  

Engine Details

Aircraft powerplant (lift and/or propulsion)

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

Powerplant
Number of engines: 2
Designation: P&W R-985-AN-14B reciprocating
Manufacturer: Pratt & Whitney
Normal Ratings
Max continuous:  
Take-off / rated: 336 kW 450 hp
Intermediate:  
Maximum:  
OEI Ratings
OEI contingency:  
OEI continuous:  
OEI 30-second:  
OEI intermediate:  

Primary Lift Device

Data on primary lift devices such as main rotors

Main Rotor Characteristics
Diameter: 14.02 m 46.00 ft
RPM:  
Direction of Rotation: Counter-rotating
Hub Type:
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:  
Blade Tip Geometry: Conventional
Blade Twist:  
Number of Blades: 3
Main Rotor Derived Characteristics
Disc Area: 154.40 m² 1662.0 ft²
Disc Loading: 16.16 kg/m² 3.309 lb/ft²
Solidity:  
Main Rotor Blade Derived Characteristics
Blade area per blade:  
Tip Speed:  

Primary Control Device

Data on primary control devices such as tail rotors

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):  

Related VFS Resources

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Related Public Resources

Resources related to the XHJD-1 Whirlaway, provided by public sources across the internet.

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