By the glossary definition, with a Useful Load of 9870 lb (4477 kg), the calculated Empty Weight is approximately 4187 kg.

Overview

Data on design, manufacture and status

Latest or last design authority: Sikorsky Aircraft Corp.
Originally designed by Sikorsky Aircraft Division, United Aircraft and Transport Corporation

Latest or last primary manufacturer: Sikorsky Aircraft Corp.
Originally manufactured by Sikorsky Aircraft Division, United Aircraft and Transport Corporation

Parent type: Sikorsky S-61/H-3

Aircraft status: Operational

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Tail rotor

Crew required: 2

Crew seating: Side-by-side

Landing gear: Wheels (all 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

Weights
Max Gross Weight (ground): 8,664 kg 19,100 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 8,664 kg 19,100 lb
Empty Weight: 4,187 kg 9,230 lb
Useful Load: 4,477 kg 9,870 lb
Empty Weight Fraction: 0.483
Climb Performance
Max Rate of Climb:  
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE:  
Limitations
Max Level Flight Speed: 250 km/h 135 kts
Never Exceed Speed:  
Service Ceiling:  
Range and Endurance
Max Range: 837 km 452 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: GE T58-GE-8B turbine
Manufacturer: GE Aviation
Normal Ratings
Max continuous:  
Take-off / rated: 933 kW 1250 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

NACA 0012 airfoil; RPM (S-72 RSRA): 209.09

Main Rotor Characteristics
Diameter: 18.90 m 62.00 ft
RPM: 203.0 rpm 203.0 rpm
Direction of Rotation: Counterclockwise
Hub Type: Fully articulated
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord: 0.464 m 1.52 ft
Blade Tip Geometry: Conventional
Blade Twist: -0.140 rad -8.000 deg
Number of Blades: 5
Main Rotor Derived Characteristics
Disc Area: 280.48 m² 3019.2 ft²
Disc Loading: 30.89 kg/m² 6.326 lb/ft²
Solidity: 0.0781
Main Rotor Blade Derived Characteristics
Blade area per blade: 4.38 m² 47.1 ft²
Tip Speed: 200.86 m/s 659.0 fps

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: 5
Blade Construction:  
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 S-61A (SH-3A Sea King, CH-38), provided by public sources across the internet.

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