AC312E(H425-100) Helicopter Technical Data

Overview

The twin light helicopter AC312E(H425-100) is developed from AC312A by Harbin Aircraft Industry Group Co., Ltd.. with engines changed to ARRIEL 2H, which features higher power and lower fuel consumption , high-integrated avionics system, digital AFCS, high-powered DC power supply system, as well as optimation and improvement of other systems. This model features strong power and state-of-the-art avionics system. The reasonably laid-out cabin can be configured into a wide variety of missions. With excellent performance, AC312E(H425-100) is able to be operated at high and hot environment. It is suitable to utility and corporate (VIP) transportation, EMS and SAR, law enforcement, offshore oil and gas missions and etc..

With single main rotor and fenestron tail rotor incorporated, MTOW of 4250 kg, 1 minimum aircrew and up to 9 passengers, AC312E(H425-100) is able to be operated under complex meteorological conditions, day or night.

Dimensions

Overall Data

Overall Data
Main rotor diameter	12.00m
Tail rotor diameter	1.10m
Overall length （Main rotor turning）	13.72m
Airframe length （Main rotor excluded）	12.04m
Airframe width （Main rotor excluded）	3.21m
Airframe width （Main rotor, horizontal stabilizer and side fins excluded）	2.03m
Height of vertical tail	3.97m
Height of rotor hub	3.49m
Underbelly ground clearance	0.4m
Wheel track	1.90m

Cabin data

Cabin data
Max. length	2.30m
Max. width	1.92m
Max. height	1.40m
Effective area	4.20m2
Effective capacity	5.00m3

Luggage compartment

Luggage compartment
Length	2.00m
FWD width	1.70m
AFT width	1.10m
FWD height	1.00m
AFT height	0.75m
Effective area	2.25m2
Effective capacity	1.10m3

Cabin door data

Cabin door data
Cockpit door width	0.90m
Cockpit door height	1.16m
Mid-cabin door width	0.90m
Mid-cabin door height	1.16m
Sliding door width	1.27m
Sliding door height	1.16m
Luggage compartment door width	0.73m
Luggage compartment door height	0.51m

Performance data

Capacity

Capacity
Passenger transport	1 pilot + 9 passengers 2 pilots + 8 passengers
EMS	2 pilots+ 1 stretcher + 2 medical staff+ 1 patient's family

Weight data

Weight data
Maximum take-off weight	4250kg
Standard empty weight	2297kg
Max. useable fuel weight	892kg

Flight performance

Flight performance	ISA	ISA+20℃
Never exceed speed	275km/h	268km/h
Optimum cruise speed	240km/h	237km/h
Hovering ceiling IGE	4100m	3037m
Hovering ceiling OGE	1761m	1068m
Inclined climb rate	8.23m/s	8.09m/s
Service ceiling	5587m	4631m
Cruise range (without fuel reserve)	709km	705km
Endurance (without fuel reserve)	3.93h	3.84h

Powerplant data

Powerplant data	2 ARRIEL 2H turboshaft engines manufactured by Turbomeca
	Thermal power	Mechanical power
OEI (30 s)	842 kW	704 kW
OEI (2 min)	754 kW	635 kW
OEI continous (unlimited)	726 kW	610 kW
Takeoff power (5 min）	735 kW	495 kW
Maximum continuous (unlimited)	685 kW	460.5 kW

Note：The data above are used for presentation only; they may vary with different conditions.