A rotorless 3-place airplane configuration of the NASA/DARPA Rotor Systems Research Aircraft (RSRA) project, redesignated S-72X.  It is intended to serve as an emergency configuration required for operation if the rotor is severed by the Emergency Escape System.  In addition to the turbofan propulors, the main transmission and conventional 5-blade tail rotor are powered by General Electric T58-GE-5 / T58-GE-10 engines.

Overview

Data on design, manufacture and status

Design authority: Sikorsky Aircraft Corp.

Primary manufacturer: Sikorsky Aircraft Corp.

Parent type: Sikorsky S-72 RSRA

Aircraft status: No longer flying

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Compound type: Lift and Thrust

Lift configuration: Other

Dedicated control device: Tail rotor

Dedicated propulsion devices: 2

Crew required: 2-3

Crew seating: Side-by-side

Landing gear: Wheels (some retractable)

Layout and Dimensions

Data on aircraft size

Note: Only the main wheels were retractable

Overall Dimensions
Overall Height: 4.72 m 15.5 ft
Overall Length: 19.41 m 63.7 ft
Overall Width: 13.72 m 45.0 ft
Airframe Dimensions
Airframe Length: 19.41 m 63.7 ft
Airframe Width: 13.72 m 45.0 ft
Airframe Height: 4.57 m 15.0 ft
Landing Gear Dimensions
Landing Gear Base: 11.56 m 37.9 ft
Landing Gear Track:  
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Weights
Max Gross Weight (ground): 12,927 kg 28,500 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 12,927 kg 28,500 lb
Empty Weight:  
Useful Load:  
Empty Weight Fraction:  
Climb Performance
Max Rate of Climb:  
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE:  
Limitations
Max Level Flight Speed: 556 km/h 300 kts
Never Exceed Speed:  
Service Ceiling:  
Range and Endurance
Max Range:  
Max Endurance: 1 hrs 1 hrs

Engine Details

Aircraft powerplant (lift and/or propulsion)

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

Powerplant
Number of engines: 2
Designation: GE TF34-GE-400A turbine
Manufacturer: GE Aviation
Normal Ratings
Max continuous:  
Take-off / rated:  
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:  
RPM:  
Direction of Rotation: Unknown
Hub Type:  
Main Rotor Blade Characteristics
Blade Construction:  
Blade Chord:  
Blade Tip Geometry:  
Blade Twist:  
Number of Blades:  
Main Rotor Derived Characteristics
Disc Area:  
Disc Loading:  
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: 3.23 m 10.60 ft
Configuration: Pusher
Direction of Rotation: Top blade aft
RPM:  
Tail Rotor Blade Characteristics
Number of Blades: 5
Blade Construction:  
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area: 8.20 m² 88.3 ft²
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 S-72X RSRA Fixed-Wing , provided by public sources across the internet.

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