India's license built version of the SA 316B Alouette III; dubbed the Chetak (after the horse of Rana Pratap from Indian folk legend), the helicopter's deliveries began in 1965.  Indigenous production began in 1969.  

The max weight and take-off power of the aircraft are 2,100 kg and 650 kW, respectively.  The helicopter has a fuel capacity of 575 liters and seats seven.


Data on design, manufacture and status

Design authority: Sud-Aviation

Primary manufacturer: Hindustan Aeronautics Limited

Parent type: No type defined

Aircraft status: Status unknown


Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Tail rotor

Crew required: TBA

Crew seating: Side-by-side

Landing gear: Wheels (non-retractable)

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height: 2.97 m 9.7 ft
Overall Length: 12.84 m 42.1 ft
Overall Width: 11.02 m 36.2 ft
Airframe Dimensions
Airframe Length:  
Airframe Width: 2.59 m 8.5 ft
Airframe Height:  
Landing Gear Dimensions
Landing Gear Base:  
Landing Gear Track: 2.60 m 8.5 ft
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Best Endurance: 85 km/h; Cruise Speed: 185 km/h; Max Speed: 210 km/h;

Max Gross Weight (ground): 2,200 kg 4,850 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 2,200 kg 4,850 lb
Empty Weight: 1,130 kg 2,491 lb
Useful Load: 1,070 kg 2,359 lb
Empty Weight Fraction: 0.514
Climb Performance
Max Rate of Climb: 260 m/s 51,181 fpm
Hover Performance
Hover Ceiling IGE: 2,850 m 9,350 ft
Hover Ceiling OGE: 1,500 m 4,921 ft
Max Level Flight Speed:  
Never Exceed Speed: 210 km/h 113 kts
Service Ceiling: 6,500 m 21,325 ft
Range and Endurance
Max Range: 500 km 270 nm
Max Endurance: 3 hrs 3 hrs

Engine Details

Aircraft powerplant (lift and/or propulsion)

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

Number of engines: 1
Designation: Turbomeca Artouste IIIB turbine
Manufacturer: Turbomeca
Normal Ratings
Max continuous:  
Take-off / rated: 650 kW 871 hp
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: 11.00 m 36.09 ft
Direction of Rotation: Unknown
Hub Type:
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord: 0.350 m 1.15 ft
Blade Tip Geometry:
Blade Twist:  
Number of Blades: 3
Main Rotor Derived Characteristics
Disc Area: 95.03 m² 1023.0 ft²
Disc Loading: 23.15 kg/m² 4.741 lb/ft²
Solidity: 0.0608
Main Rotor Blade Derived Characteristics
Blade area per blade: 1.92 m² 20.7 ft²
Tip Speed:  

Primary Control Device

Data on primary control devices such as tail rotors

Tail Rotor Characteristics
Diameter: 1.91 m 6.27 ft
Configuration: Unknown
Direction of Rotation: Unknown
Tail Rotor Blade Characteristics
Number of Blades: 3
Blade Construction:  
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area: 2.87 m² 30.8 ft²
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

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