Aerospool WT9 Dynamic LSA / Club, Pilot Operating Handbook

Page: 159 / 204

Initial issue Page 7-25
Engine Controls
The throttle control labelled THROTTLE is a black knob installed in the center console (Fig. 7-15). It is configured so
that the throttle is opened in the forward position and closed in the full aft position. Throttle control is operated by
rotating the knob in clockwise direction for increase (A) or counter clockwise for decrease (B) of engine speed. For
rapid or large adjustments, the knob may be moved forward for increase (D) or backward for decrease (E) of engine
speed by depressing the lock button (C) at the end of throttle control and then re-positioning the throttle control as
desired.
Friction of the throttle control is adjusted by rotating the knob (F) on the bottom of the control handle clockwise for
increase and counter clockwise for decrease of friction. The throttle control is mechanically linked by steel cables with
the carburetors.
The choke control, labelled
CHOKE is a grey handle located in the center console. The mixture is enrichened as the
controller is pulled out. The richest mixture is set at the full aft position of the controller The CHOKE may be used only
on the ground and for cold engine start only.
Fig. 7-15 Throttle controller
Cooling System
The engine has both a water and an air cooling system.
The water cooling system consists of a water radiator installed in the lower engine cowling. The system is equipped
with a water thermostat that keeps the coolant temperature in optimum range.
The air intakes to cool the engine compartment are located on the upper engine cowling and on the left side from
spinner. Cooling air baffled in the engine compartment discharges under the aircraft.
WARNING
Never check the coolant level when the engine is hot! Always let
the engine cool down to ambient temperature!