Hawker Beechcraft Hawker 800XP, Руководство по эксплуатации для пилотов, Страница: 385 / 923

Page 2-20
Pilot’s Operating Manual
Revision A1: Nov, 2002
Sub-section 2
PREFLIGHT
Hawker 800XP Pro Line 21
Section IV - FLIGHT PLANNING DATA
END ALLOWANCES
The following fuel allowances may be used:
• Engine start ................... 20 lb for both engines.
• Taxi................................ 10 lb per minute pre takeoff or post landing.
A typical pre take-off allowance is 100 lb for start and taxi-out, but considerably more may be needed
at some airfields. Pre takeoff fuel must be allowed for when calculating the total fuel required, but it is
not included in the take-off weight.
NOTE: Take-off weight plus pre take-off fuel must not exceed the maximum ramp weight.
• Approach Visual Flight Rules (VFR)..................................30 lb
Instrument Flight Rules (IFR) ..........................100 lb
• Circuits 2000 lb/hour approximately, with flaps 15
°
and landing gear extended.
OPERATION FROM and INTO HIGH ALTITUDE AIRFIELDS
The Sector fuel tables are based on take-off and landing at sea level.
If take-off is made from a higher airfield then sector fuel may be reduced by 15 lb per 1000 feet airfield
altitude. This allows for the shorter climb to cruise altitude and the corresponding longer cruise, giving
the same sector distance.
Landing at a high altitude airfield has no significant effect on sector fuel.
RESERVE FUEL
DIVERSION
Diversion fuel can be read from the tables (Diversion Time and Fuel) of this Sub-section .
These include an allowance of approximately 50 lb (varying with weight) which may be used to cover a
discontinued approach and climb to 1000 ft. The minimum distance shown in the table for a given
altitude may consist only of take-off, climb, and descent with no appreciable cruise. It will sometimes
be possible to use this altitude for a diversion but it may be necessary to plan for a lower altitude.
Diversion at cruising altitude should be dealt with by adding the appropriate diversion air distance to the
sector air distance before entering the sector fuel table.
HOLDING
Holding fuel for any required period is calculated from the fuel flows in Sub-section 2 - PREFLIGHT
(Holding Fuel Flow). Allowance is made in the table for the increase in drag due to flying circuits using
25
°
bank.
A typical holding allowance at the alternate is 30 minutes at low altitude or 45 minutes higher up. This
will in most cases be sufficient to cover landing at the alternate, but an additional approach allowance
may be added if required.
NOTE: A go-around must not be attempted with less than 400 lb of fuel in the tanks.