Avicopter AC312
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 statusDesign authority: Société Nationale Industrielle Aérospatiale
Primary manufacturer: AVICOPTER PLC
Parent type: Aérospatiale Z-9
Aircraft status: Operational
Configuration
Primary flight and mechanical characteristicsVTOL 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 characteristicsMax 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): | ||
