Known as Gazelle HT.3 in Royal Air Force service


Data on design, manufacture and status

Design authority: Sud-Aviation

Primary manufacturer: Westland Helicopters Ltd

Parent type: Sud SA.341

Aircraft status: Operational


Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Fenestron/Shrouded tail rotor

Crew required: 1

Crew seating: Side-by-side

Landing gear: Skids

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

Max Gross Weight (ground):  
Max Gross Weight (airborne):  
Max Take-off Weight:  
Empty Weight:  
Useful Load:  
Empty Weight Fraction:  
Climb Performance
Max Rate of Climb:  
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE:  
Max Level Flight Speed:  
Never Exceed Speed:  
Service Ceiling:  
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: Turbomeca Astazou IIIN2 turbine
Manufacturer: Turbomeca
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

Main Rotor Characteristics
Diameter: 10.50 m 34.45 ft
Direction of Rotation: Clockwise
Hub Type: Fully articulated
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:  
Blade Tip Geometry: Conventional
Blade Twist:  
Number of Blades: 3
Main Rotor Derived Characteristics
Disc Area: 86.59 m² 932.1 ft²
Disc Loading:  
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 blade airfoil - NACA series 16

Tail Rotor Characteristics
Diameter: 0.70 m 2.28 ft
Configuration: Unknown
Direction of Rotation: Unknown
RPM: 5774 rpm 5774 rpm
Tail Rotor Blade Characteristics
Number of Blades: 1
Blade Construction: Die forged, aluminum alloy blades
Blade Chord: 0.039 m 0.13 ft
Blade Twist: -0.22 rad -12.5 deg
Tail Rotor Derived Characteristics
Disc Area: 0.38 m² 4.1 ft²
Solidity: 0.0357
Tail Rotor Blade Derived Characteristics
Tip Speed: 210.42 m/s 690.3 fps
Blade Area (per blade): 0.014 m² 0.15 ft²

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Related Public Resources

Resources related to the SA.341D Gazelle, provided by public sources across the internet.