Each bottle discharge is achieved by the acti-
vation of electrically operated units. Either
pilot can select which extinguisher is to be fired
into which engine by properly activating the
appropriate ENG 1 or 2 EXT switch to SHOT
1 (up) for its respective engine, or down to
SHOT 2 for the same engine (Figure 8-3).
When one of the extinguishers has been fired,
the associated EXT 1 or 2 FIRED indicator
turns red. Power for both SHOT 2 circuits is
supplied by bus bar PS2. All other fire pro-
tective circuits are powered by bus bar PE.
Figure 8-4 shows the pressure relief discharge
indicators which are located under the left en-
gine pylon on the fuselage. They are green
discs. A buildup of excess thermal pressure in
the bottle will cause the extinguishing agent
to discharge, blowing out the disc and leaving
a red indication. The condition of the discs
should be checked during the exterior pre-
flight inspection.
Revision 1
8-4
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP
PILOT TRAINING MANUAL
FlightSafety
international
CHECK
VALVES
EXTINGUISHER
BOTTLE NO. 1
EXTINGUISHER
BOTTLE NO. 2
PRESSURE RELIEF
DISCHARGE INDICATORS
CHECK
VALVES
TWIN
NOZZLE
TWIN
NOZZLE
ENGINE EXTINGUISHER
THERMAL DISCARGE
ELECTRICAL
PE
PS2
PS2
PE
NO.
1
NO.
2
Figure 8-3. Engine Fire-Extinguishing System
EXTINGUISHER
BOTTLES
Figure 8-4. Pressure Relief
Discharge Indicators
Содержание 800 XP
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