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SECTION III
THE
PIPER
COMANCHE
cLImB
CRUISING
The cruisingspeed of the Comanche is determined by many
factors including power setting,
altltude, temperature, weight,
and equipment installed.
The normal recommended economy cruising power setting
of the Comanche is at 65% power.
At 10,000 fect this gives a
True
Airspeed
of 177 MPH.
This power
setting
is obtained
under standard conditions at 2400 RPM
and full throttle.
Fuel
consumption
is
approximately
12.7
gallons
per
hour
total.
The optimum
cruising speed of the Comanche
at 7000' is
185 MPH.
(See Power and Performance
charts for power set-
tings and performance under various conditions.)
The Lycoming
engine in the Comanche can be cruised
at
any percent
of power
from 75% down.
2400 RPM
is
recom-
mended
for
maximum
cruise
performance
and
lower RPM's,
down to 1800, for more economical cruising conditions.
Ordi-
narily an RPM setting should be selected which will give max-
imum smoothness.
To obtain the desired power
set the manifold pressure and
RPM according to the power setting table in this manual,
After
the desired power settings have been set up, adjust the mixture
control.
Fuel
injection engines best power setting is indicated by
the
fuel flow
meter.
The
low
side
of
the power
setting,
as
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