The AC312A (variant of the AC312) is a 4 ton twin-turbine civil helicopter with a single main rotor and a fenestron; the main rotor 70 mm longer than the AC312.  This version can carry a 1740 kg payload versus 1590 kg and has a Maximum Cruise Speed 7 km/h faster.  With side by side seating arrangement, the cabin layout is [2 pilot + 12 pax].  In air medical service, the cabin layout may be [1-2 pilot + 4 stretchers + 1 med] or [1-2 pilot + 2 stretchers + 4 meds].

The AC312A is operated with either AVIC ENGINE WZ-8, or TURBOMECA Arriel 2C powerplants.

Avicopter's AC312A obtained CAAC Type Certificate and Production Certificate, and passed the evaluation conducted by Aircraft Evaluation Group (AEG).


Data on design, manufacture and status

Design authority: AVICOPTER PLC

Primary manufacturer: AVICOPTER PLC

Parent type: Avicopter Z-9

Aircraft status: Status unknown


Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Fenestron/Shrouded tail rotor

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: 3.98 m 13.0 ft
Overall Length:  
Overall Width: 12.00 m 39.4 ft
Airframe Dimensions
Airframe Length: 12.04 m 39.5 ft
Airframe Width: 3.21 m 10.5 ft
Airframe Height: 3.98 m 13.0 ft
Landing Gear Dimensions
Landing Gear Base: 3.64 m 11.9 ft
Landing Gear Track: 1.90 m 6.2 ft
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Max Cruise Speed: 287 km/h; Max Endurance with 20 min reserve: 3.46 h; Max Range with 20 minute reserve: 668 km

Max Gross Weight (ground): 4,250 kg 9,370 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 4,250 kg 9,370 lb
Empty Weight:  
Useful Load:  
Empty Weight Fraction:  
Climb Performance
Max Rate of Climb: 7 m/s 1,364 fpm
Hover Performance
Hover Ceiling IGE: 2,776 m 9,108 ft
Hover Ceiling OGE: 1,624 m 5,328 ft
Max Level Flight Speed:  
Never Exceed Speed:  
Service Ceiling: 6,000 m 19,685 ft
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: 2
Designation: Turbomeca Arriel 2C turbine
Manufacturer: Turbomeca
Normal Ratings
Max continuous: 581 kW 779 hp
Take-off / rated: 626 kW 839 hp
OEI Ratings
OEI contingency: 646 kW 866 hp
OEI continuous: 626 kW 839 hp
OEI 30-second: 718 kW 962 hp
OEI intermediate:  

Primary Lift Device

Data on primary lift devices such as main rotors

Main Rotor Characteristics
Diameter: 12.00 m 39.37 ft
Direction of Rotation: Unknown
Hub Type:
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:  
Blade Tip Geometry:
Blade Twist:  
Number of Blades: 4
Main Rotor Derived Characteristics
Disc Area: 113.10 m² 1217.4 ft²
Disc Loading: 37.58 kg/m² 7.697 lb/ft²
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: 1.10 m 3.61 ft
Configuration: Unknown
Direction of Rotation: Unknown
Tail Rotor Blade Characteristics
Number of Blades: 11
Blade Construction:  
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area: 0.95 m² 10.2 ft²
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

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