BOMBARDIER BD-100-1A10, Руководство по эксплуатации

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POWERPLANT
Sep 13/2004 Flight Crew Operating Manual Volume 2
REV 1 CSP 100-6
18-01-01
INTRODUCTION
The Challenger 300 is equipped with two Honeywell AS907 high-bypass turbofans. Each powerplant is controlled by a full
authority digital engine control system (FADEC).
The AS907 turbofan engine is a 4.2 bypass ratio, two-spool direct drive turbofan engine. The single-stage, wide-chord fan
is directly driven by a three-stage low-pressure turbine. The core consists of a four-stage-axial compressor with two stages
of variable geometry, a single stage of centrifugal compressor, a through-flow annular combustor, 16 fuel nozzles, 2 ignitors
and a two-stage high-pressure turbine. Exhaust system includes an exit guide vane, a mixer nozzle and a centerbody. The
accessory gearbox mounts the engine air turbine starter and provides accessory drive pads for mounting the hydraulic pump
and generator, as well as providing lubrication for the engine.
FLAT-RATED THRUST
Outside air temperature and pressure altitude are determining factors in achieving takeoff power. Increases in ambient tem-
perature or pressure altitude adversely affect the engine’s ability to produce rated thrust. Normal takeoff thrust rating is
6826 pounds. The AS907 is flat rated to ISA +15
°
C (86
°
F) at sea level. Automatic power reserve (APR) provides flat
rated takeoff thrust to ISA + 20
°
C (95
°
F). APR is invoked either during one engine inoperative condition, with TLA at or
above takeoff detent and APR armed, or when the throttle is pushed to the forward mechanical stop.
HONEYWELL AS907 ENGINE SECTIONS
CENTER BODY
HIGH PRESSURE
TURBINE ASSEMBLY
BLEED PORTS
FRONT FRAME
ASSEMBLY
SPINNER
COVER RING
ASSEMBLY
FAN ROTOR
ASSEMBLY
FAN INLET
HOUSING
INNER RING
ASSEMBLY
FAN STATOR
VANE ASSEMBLY
ACCESSORY GEABOX
ASSEMBLY
HIGH PRESSURE
COMPRESSOR
ASSEMBLY
LOW PRESSURE
TURBINE ASSEMBLY
EXHAUST
MIXER
NOZZLE
CF
O
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