Hawker Beechcraft Hawker 800XP, Руководство по эксплуатации для пилотов

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Page 2-27
Pilot’s Operating Manual
Revision A1: Nov, 2002
Sub-section 2
ABNORMAL HANDLING
Hawker 800XP Pro Line 21
Section V - FLIGHT HANDLING
OPERATION IN AREAS CONTAMINATED BY VOLCANIC ASH
Operation of the Hawker 800XP airplane, both in flight and on the ground, in areas contaminated by
volcanic ash or dust must be avoided. However, the following information is offered should volcanic ash
be unavoidably encountered.
GROUND OPERATION
Volcanic dust will be stirred up by routine maintenance and service activities, and will settle on exposed
surfaces and may penetrate air intakes and seals.
PRE-START
Gently brush the ash from the windshields and flying surfaces. Avoid using the APU by using ground
power.
TAXI
Keep engine thrust to a minimum. Avoid sharp or high speed turns and keep the engine and APU air
valves closed.
TAKEOFF
Allow all dust and ash to settle before takeoff. Make a rolling takeoff by advancing the thrust levers
smoothly to take-off power.
CRUISE
NOTE: If an area contaminated by volcanic ash is encountered during cruise, the aircrew must don
oxygen masks.
If engines malfunction (surge/increase ITT) select engine ignition on and retard thrust levers to IDLE.
Where practicable, close engine air valves to prevent dust entering the cabin and descend to minimum
safe altitude. Passengers and cabin crew should use cabin oxygen system when the masks drop down.
Fly out of the cloud as soon as possible.
A volcanic cloud is likely to drift downwind for many miles from its source, and will probably be confined
to upper and medium levels. Therefore, contrary to the advice normally given to escape from
thunderstorms, the quickest way out of a volcanic cloud may well be to turn around.
LANDING
Do not use reverse thrust unless absolutely necessary, and then only to the minimum level required to
stop safely. Runway friction, and brake efficiency, may be reduced by ash on the runway.
The use of landing data for a wet or contaminated runway should be considered.