The Z-9-H425 entered service in 2005.  The helicopter featured an electronic flight instrumentation system from Rockwell Collins; the glass cockpit is also from Rockwell Collins.  Maximum internal and external payloads are 1,900 kg and 1,600 kg, respectively.  The aircraft capacity is 12-13 passengers.

The H425 is the improved version of the H410A, a Z-9 variant.  After the initial flight of the H425 in December 2003, the helicopter received CAAC certification in December 2004.


Data on design, manufacture and status

Design authority: Aérospatiale, Helicopter Division

Primary manufacturer: Harbin Aircraft Manufacturing Corporation

Parent type: Aérospatiale Z-9

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: 1-2

Crew seating: Side-by-side

Landing gear: Wheels (all retractable)

Layout and Dimensions

Data on aircraft size

The value for "Landing gear track" is an approximation using the inner and outer measurements (1.90 m and 2.02 m, respectively) of the wheels.

Overall Dimensions
Overall Height: 3.97 m 13.0 ft
Overall Length: 13.72 m 45.0 ft
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:  
Landing Gear Dimensions
Landing Gear Base: 3.64 m 11.9 ft
Landing Gear Track: 1.96 m 6.4 ft
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Max Cruising Speed: 267 km/h; Max Speed: 280 km/h

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: 2,200 kg 4,850 lb
Useful Load: 2,050 kg 4,519 lb
Empty Weight Fraction: 0.518
Climb Performance
Max Rate of Climb:  
Hover Performance
Hover Ceiling IGE: 2,670 m 8,760 ft
Hover Ceiling OGE: 1,320 m 4,331 ft
Max Level Flight Speed:  
Never Exceed Speed:  
Service Ceiling: 6,000 m 19,685 ft
Range and Endurance
Max Range: 800 km 432 nm
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: 8
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):  

Related VFS Resources

Resources related to the H425 (Z-9), provided by the Vertical Flight Society.
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Related Public Resources

Resources related to the H425 (Z-9), provided by public sources across the internet.