7-15
ALPHA Trainer LSA
Pilot Operating Handbook
POH-162-00-40-001
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SECTION 7
AIRPLANE DESCRIPTION
Thereafter fuel enters the fuel shut-o valve, activated from the cabin, which
has two positions: OPEN and CLOSED. When CLOSED position is selected
the valve shuts o the fuel feed line. Once the fuel leaves the fuel valve it is
fed through a gascolator, which has a drain valve. The gascolator removes
water that may be in the fuel and filters out debris/foreign material. The fuel
system features a fuel return line connected directly to the fuel tank.
NOTE: Indicated fuel flow on Engine Management System display, if avail-
able, is for information only and it is calculated indirectly. It should not be
used for navigation and flight planning purposes. Refer to fuel quantity indi-
cator for actual fuel quantity on board and for tracking of fuel situation.
WARNING: Fuel system venting is essential to system operation. Block-
age of the system will result in decreasing of fuel flow and eventual engine
fuel starvation and stoppage.
If takeo weight limitations for the next flight permit, the fuel tank should be
filled after each flight to prevent condensation.
Draining
The sampling location is the gascolator in the engine compartment, acces-
sible from the bottom engine cowl. The drain is used for draining water from
the fuel system and is accesible from the outside. Industry standard fuel sam-
pling cups or sticks should be used to perform draining.
7.8 ELECTRICAL SYSTEM
7.8.1 ELECTRICAL SYSTEM
The airplane is equipped with a single-generator, single-battery, 14-volt di-
rect current (VDC) electrical system designed to reduce the risk of electrical
system faults. The system provides uninterrupted power for avionics, flight
instrumentation, lighting, and other electrically operated and controlled sys-
tems during normal operation.
7.8.2 POWER GENERATION
The electrical system is a 12-Volt DC system. Power is supplied by integrated
generator with approximately 250 W AC output at 5800 RPM and rectified
with electronic full-wave rectifier regulator (RU 912). The generator system
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