BOMBARDIER BD-100-1A10, Руководство по эксплуатации

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POWERPLANT
Volume 2 Flight Crew Operating Manual May 06/2005
18-01-14
CSP 100-6
REV 2
ENGINE STARTING SYSTEM
DESCRIPTION
The AS907-1 turbofan engine is equipped with an air turbine starter (ATS) and starter control valve. The start system is
designed to achieve assisted ground starts, assisted inflight starts, and windmill inflight starts. Assisted starting can be ac-
complished with bleed air from the APU, an adjacent engine, or ground power. The engine also has an auto ignition func-
tion, which automatically provides ignition in the event of a stall, combustor blowout, or momentary loss of fuel. The
starting system is used to accelerate the N
2
high pressure section of the engine to a speed at which combustion light-off and
self sustaining rpm occurs. Placing the engine run switch to RUN turns on the aircraft electrical boost pump. The START
switch signals the FADEC to initiate the start sequence.
DC electrical power and air from the bleed-air manifold are required to open the start valve and engage the air turbine start-
er. The bleed-air manifold can be pressurized by the:
- APU bleed air
- Ground cart HP bleed air
- Opposite engine bleed air (crossbleed)
The pneumatic pressure from any of the three pneumatic sources is displayed on the ECS synoptic page.
C
F
O
1
80
10
02
_
0
1
8
N2
COMPRESSOR
OUTPUT
SHAFT
AIR TURBINE
STARTER
STARTER
CONTROL
VALVE
FLOW
CONTROL
VALVE
CROSS-
BLEED
VALVE
AIR
FLOW
ECU
ENGINE CONTROL
PANEL
INTEGRATED
AIR
SYSTEM
(IAS)
APU,
GROUND AIR
SUPPLY
OR ENGINE
CROSS-BLEED
START
ENGINE
APU FIRE
L ENG FIRE R ENG FIRE
1 2
FIRE EXT
AUTO
SYNC
AUTO APR
L STARTER
IGNITION
R STARTER
MACH HOLD
EVENT
OFF
N1
N2
OFF
START CRANK
OFF
START CRANK
ON
ON
FIRE
ARMED ARMED
OFF
FIRE FIRE
V 2