Symphony SA-160, Flight Manual

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A I R C R A F T
SA 160
A I R C R A F T A I R C R A F T
Symphony
4-28
SECTION 4
NORMAL PROCEDURES
(l) Cruise (4.5 l)
Adjust the elevator trim, to make flying on long routes easier.
The cruise speed and the cruise power settings depend on many
factors such as altitude, air temperature, aircraft loading and so on.
The normal cruising power is 55% - 75% of the rated horsepower of
the engine. Airspeeds, which may be obtained at various altitudes
and power settings, can be determined from the performance graphs
provided in section 5.
A correct mixture setting can significantly reduce fuel consumption.
For that:
(a) Establish desired cruise power and allow engine parameters to
stabilize.
(b) Press BUTTON 1 at VM 1000 display (see Section 7) to activate the
“Lean EGT Mode”.
(c) Smoothly lean engine mixture by rotating the knob counter-
clockwise to start the EGT bars climbing (about one bar per 2
seconds). If the leanest EGT has been detected, the bar graph for
that EGT will begin flashing. Stop leaning.
(d) Enrich engine mixture by rotating mixture knob counter-
clockwise to set final mixture as follows:
(1) For
(up to 75% power) - 150°F on rich
side peak EGT.
Never exceed the maximum red line cylinder head temperature
limit.
Always return the mixture to full rich before increasing power
settings.
Prolonged operation with a lean mixture, at more than 75%
engine power, can result in engine damage.
Avoid rough engine operation
Maximum Power Cruise
CAUTION !
Feb 25, 2005