F
F
L
L
I
I
G
G
H
H
T
T
T
T
R
R
A
A
I
I
N
N
I
I
N
N
G
G
S
S
U
U
P
P
P
P
L
L
E
E
M
M
E
E
N
N
T
T
for SPORT
STAR
Light Sport Aircraft
Document No.: S2006FTSUS Revision: -
Date of Issue: 15/01/2006
Page:
86/130
If an in-flight variable pitch prop is installed in your airplane, then the engine
power (rpm) may be set either by the throttle lever or by setting the
propeller pitch. Thus you get an infinite number of combinations of engine
power settings by means of throttle and prop pitch setting, Therefore a
manifold pressure indicator should be installed on the instrument panel is
the airplane is equipped with an in-flight variable pitch prop. It is valuable to
set the required engine regime. You will use the throttle lever to set the
recommended manifold pressure displayed on the gauge (pressure is
shown in Section 5. of the Aircraft Operating Instructions) and then use the
propeller pitch control to set the pitch that will give you the required engine
speed. The airplane manufacturer test performance of airplane with in-flight
variable pitch prop at 3 various altitudes and in each case at 3 various
manifold pressures to get data for the Aircraft Operating Instructions.
However you may find better engine power settings for your airplane during
its operation.
Alternately switch fuel selector from LEFT to RIGHT position to ensure
even fuel pumping from both tanks.
During long term level flight it is recommended to pay attention not only to
navigation but also to monitor from time to time the engine parameters
such as oil temperature, oil pressure, cylinder head temperature, battery
charging on voltmeter and fuel quantity.
If you fly in turbulent air then it is not required to make continual
adjustments with the throttle lever for every small change caused by the
turbulence. Instead, use the flight controls for that. If there is a tendency
for the airplane to climb in the turbulence, then push the control stick
forward to help correct this tendency. If the airplane has a tendency to
descend, pull the stick back. Only in the case of extreme turbulence when
the airplane has a strong tendency to climb or descend, use the throttle
lever to change engine power and eliminate that tendency.