Pipistrel VIRUS SW 600 D, Руководство по эксплуатации для пилотов

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7-7
Virus SW 600 D
iS engine POH Supplement
SPOH-127-00-41-001
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SECTION 7
AIRPLANE DESCRIPTION
lever in the cockpit. The propeller governor boosts oil pressure in order to
regulate propeller pitch position. During stabilized flight, the governor auto-
matically adjusts propeller pitch in order to maintain an RPM setting (propel-
ler and throttle position). Any change in airspeed or load on the propeller
results in a change in propeller pitch.
7.7 FUEL SYSTEM
The airplane has two integral fuel tanks, one in each wing. The maximum us-
able fuel quantity is 99 liters (AVGAS or MOGAS, see Section 2 - Limitations
for applicable fuel grades). Two (left and right) transparent vertical tubes,
which are visible from the pilot position and connected to the highest and
lowest points of each respective tank, serve as a visual indicator of the fuel
quantity available. Each tank has a strainer at the fuel outlet that prevents
any debris and/or foreign material from making its way towards the engine.
Venting of the fuel tanks is through the fuel caps.
There is a 1.5 L stainless steel collector tank (left and right) located just down-
stream from each fuel tank. It serves as a reserve fuel supply and prevents
engine starvation from occuring due to prolonged flight in side slip. After
leaving the collector tank the fuel goes through a filter and a water trap
valve, located at the bottom of the fuselage behind the baggage compart-
ment. Thereafter fuel enters the centrally-located fuel selector switch, which
has three different positions: LEFT, RIGHT, and OFF. When the LEFT position
is selected the engine is fed fuel from the left fuel tank and excess fuel is
returned to the LEFT collector tank. When the RIGHT fuel position is selected
the engine is fed fuel from the right tank and the excess fuel is returned to
the RIGHT collector tank. When the OFF position is selected the fuel selector
switch shuts off both the feed and return line. Once the fuel leaves the fuel
selector it enters the fuel pump box (see 7.6.2 for details) and is fed through
a gascolator. The gascolator removes water that may be in the fuel and fil-
ters out any debris/foreign material. The fuel passes through a second filter,
equipped with bypass valve, before entering the engine injection system.
NOTE: Refer to visual fuel quantity indicators for actual fuel quantity on
board and tracking of fuel situation.
Because of aircraft’s high wing configuration the fuel system is gravi-
ty-fed, always ensuring adequate fuel pressure. Fuel system venting is
essential to system operation. Blockage of the system will result in de-
creasing of fuel flow and eventual engine fuel starvation and stoppage.