Eads eurocopter AS 365 N3 - 7.3 Power Plant

COMPLEMENTARY FLIGHT MANUAL
AS 365 N3
7.3
07-50 Page 1
SECTION 7.3
POWER PLANT
1 DESCRIPTION
1.1 INSTALLATION
The 365 N3 is powered by 2 ARRIEL 2C turbo shaft engines installed side by side
behind the MGB.
The engines are located in two insulated fire-proof bays.
The two air intakes located forward of the MGB take advantage of the ram air
pressure in forward flight.
The power takeoff of each engine is located at the forward end.
The tail rotor drive shaft runs between the two engines and is insulated from the
fire bays by a tunnel.
1.2 SUMMARY
The modular design ARRIEL 2C turbo shaft engine consists of:
• A gas generator assembly comprising:
- a one-stage axial compressor,
- a centrifugal compressor,
- an annular combustion chamber,
- a one-stage turbine.
• A free turbine recovering the driving power.
2 MINIMUM PERFORMANCE DATA
2.1 SERVICE RATINGS (TEST BENCH ENGINE)
RATING MAXIMUM TIME
POWER (kW)
Hp = 0 ISA
OEI 30 s
OEI 2 min
OEI Continuous
MTOP
MCP
30 s
2 min
Unlimited
5 min
Unlimited
718
646
622
626
581