FLIGHT MANUAL
Doc. No. SP2006FMENKT
7 - 10
December 20, 2006
Section 7
Airplane and System
Description
7.11.6 Engine intake system
Engine intake system ensures delivery of sufficient air into engine.
Air is taken into the engine through openings on the engine covers
through the air filters.
The intake system can be equipped with carburettor heating
system. Hot air from the heat exchanger (located on the exhaust
collector) is taken to the mixing chamber. Amount of in-taken hot
air is regulated by flaps in mixing chamber inlets. Flaps are
controlled by the CARBURETTOR PREHEATER knob on the
instrument panel.
7.11.7 Ignition system
The engine is equipped with the double contactless ignition system.
Each ignition circuit has own source of energy, control unit, 2
ignition coils and 4 spark plugs. It is fully autonomous on the other
circuit of accumulator. High voltage current is distributed to the
spark plugs through high-voltage cables. Ignition sequence of
individual engine cylinders:
Ignition circuits are controlled by the ignition switch on the
instrument panel.
Positions of ignition switch:
OFF
engine ignition is off
R
only ignition circuit B is on
L
only ignition circuit A is on
BOTH
both circuits are on
START
both circuits are on and starter is cranking the engine
7.12 Fuel system
Fuel system serves for keeping fuel in the airplane and its feeding
to the engine. Fuel system of SPORTSTAR
PLUS
airplane is
composed of integral fuel tanks, fuel line, fuel selector, fuel filter,
mechanical fuel pump - located on the engine (auxiliary electrical
fuel pump can be installed), distribution pipe of fuel with, return
branch of fuel, fuel gauges and fuel tanks draining valves.
7.12.1 Fuel tanks
Fuel is contained in the wing integral tanks having volume 15.85
U.S. gallons each. Each tank is fitted with air venting (output is
under the wing tip) and draining valve on the bottom side of the
wing. Fuel is led from the tanks through the hoses to the fuel