The AC312 is a 4 ton twin-turbine civil variant of the Harbin H425.  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 AC312 is operated with either AVIC ENGINE WZ-8, or TURBOMECA Arriel 2C powerplants.  Avicopter's AC312 obtained CAAC Type Certificate and Production Certificate, and passed the evaluation conducted by Aircraft Evaluation Group (AEG).

Maximum internal and external payloads are 1590 kg and 907 kg, respectively.  The maximum fuel weight is 915 kg.

Overview

Data on design, manufacture and status

Design authority: Société Nationale Industrielle Aérospatiale

Primary manufacturer: AVICOPTER PLC

Parent type: Aérospatiale Z-9

Aircraft status: Operational

Configuration

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 (all retractable)

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height: 3.98 m 13.0 ft
Overall Length:  
Overall Width: 11.93 m 39.1 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: 280 km/h; Max Endurance with 20 min reserve: 3.91 h; Max Range with 20 minute reserve: 771 km

Weights
Max Gross Weight (ground): 4,100 kg 9,039 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 4,100 kg 9,039 lb
Empty Weight:  
Useful Load:  
Empty Weight Fraction:  
Climb Performance
Max Rate of Climb: 9 m/s 1,693 fpm
Hover Performance
Hover Ceiling IGE: 2,410 m 7,907 ft
Hover Ceiling OGE: 1,627 m 5,338 ft
Limitations
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.

Powerplant
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
Intermediate:  
Maximum:  
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: 11.93 m 39.14 ft
RPM:  
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: 111.78 m² 1203.3 ft²
Disc Loading: 36.68 kg/m² 7.512 lb/ft²
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: 1.10 m 3.61 ft
Configuration: Unknown
Direction of Rotation: Unknown
RPM:  
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
Solidity:  
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

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Related Public Resources

Resources related to the AC312 , provided by public sources across the internet.

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