CROSSWIND TAKE-OFFS.
Take-offs into strong crosswinds normally are performed with the
minimum flap setting necessary for the field length to minimize the
drift angle immediately after take-off. The airplane is accelerated to a
speed slightly higher than normal, and then pulled off abruptly to
prevent possible settling back to the runway while drifting. When
clear of the ground, make a coordinated turn into the wind to
correct for drift.
ENROUTE CLIMB.
Normal climbs are performed at 87 to 104 kts with landing gear
and flaps retracted and reduced power (down to 25 inches of
manifold pressure and 2500 RPM) for increased passenger
comfort due to lower noise level. The mixture may be left full
rich as long as the engine is smooth. For optimum power with 25
inches manifold pressure and 2500 RPM, set the mixture to 13
GPH. With full throttle and 2500 RPM set the mixture to 2 GPH
less than shown in the maximum power mixture placard.
Maximum rate of climb is achieved with full throttle and 2700
RPM at speeds ranging from 82 kts at sea level to 79 kts at 10,000
feet. The mixture should be leaned for altitude in accordance with
the maximum power fuel flow placard.
If an enroute obstacle dictates the use of a steep climb angle,
an obstacle clearance speed of 69 kts should be used with landing
gear and flaps retracted and full throttle at all altitudes.
CRUISE.
Normal cruising is done between 65% and 75% power. The
power settings required to obtain these powers at various altitudes
and outside air temperatures and corresponding fuel flow settings
can be determined by using your Cessna Power Computer or the
OPERATIONAL DATA, Section VI.
The Maximum Cruise Speed Performance table, figure 2-5,
shows that cruising can be done most efficiently at higher altitudes
because very nearly the same cruising speed can be maintained at
much less power. All figures in this chart and in Section VI are
based on lean mixture, 50 gallons of fuel (no reserve), zero wind,
standard atmospheric conditions, 2800 pounds gross weight, and
cowl flaps closed.
2-14
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