Hawker Beechcraft Hawker 800XP, Руководство по эксплуатации для пилотов

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Page 3-4
P/N 140-590032-0007
Revision A4: Sep, 2010
Section III Sub-section 3
FUEL SYSTEM
Pilot’s Operating Manual
FUEL TANK VENTING
Each fuel tank is vented to the atmosphere through the vent surge tank in the wing tip. Each vent tank
incorporates a NACA intake that pressurizes the vent system. Fuel that spills into the vent surge tank
syphons back into the wing tanks as the tank level falls. Each wing tank is vented to the vent surge tank
at its outboard end via a float valve and at its inboard end via a stringer in the wing top skin. The float
valve prevents fuel loss through the vent during in-flight maneuvering.
The ventral tank vents into the left wing tank through two vent float valves, non-return valves, a pipe and
a wing stringer.
DRAIN VALVES
One fuel drain valve and one water drain valve per wing fuel tank are located on the lower surface of
the center wing section. In addition a drain valve below the vent surge tank allows water checks or
complete draining.
A fuel drain valve and fuel tank water drain valve for the ventral tank is found on the lower forward
surface of the ventral tank.
REFUEL/DEFUEL FILLER POINTS
All tanks may be pressure refueled/defueled, through a coupling at the rear of the airplane. Alternatively,
the wing tanks and the ventral tank may be gravity filled through a filler neck provided in each tank.
Figure 1
Wing Tank Crossfeed and Transfer