Cessna 152 - Page 55

THIS DATA APPLICABLE ONLY TO AIRPLANES WITH LYCOMING I
O-235-UC ENGINE. FOR AIRPLANES WITH ENGINE MODIFIED TO
O-235-N2C,
REFER TO DATA IN SECTION 9 SUPPLEMENT.
SECTION4
NORMAL PROCEDURES
CESSNA
MODEL 152
the airplane off the ground as soon as practical in a slightly tail-low
attitude. If no obstacles are ahead, the airplane should be leveled off
immediately to accelerate to a higher climb speed.
CROSSWIND TAKEOFF
Takeoffs into strong crosswinds normally are performed with the
minimum flap setting necessary for the field length, to minimize the drift
angle immediately after takeoff. With the ailerons partially deflected into
the wind, 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 with flaps up and full throttle and at
speeds 5 to 10 knots higher than best rate-of-climb speeds for the best
combination of performance, visibility and engine cooling. The mixture
should be full rich below 3000 feet and may be leaned above 3000 feet for
smoother operation or to obtain maximum RPM. For maximum rate of
climb, use the best rate-of-climb speeds shown in the Rate Of Climb chart
in Section 5. If an obstruction dictates the use of a steep climb angle, the
best angle-of-climb speed should be used with flaps up and maximum
power. Climbs at speeds lower than the best rate-of-climb speed should be
of short duration to improve engine cooling.
CRUISE
Normal cruising is performed between 55% and 75% power. The engine
RPM and corresponding fuel consumption for various altitudes can be
determined by using your Cessna Power Computer or the data in Section 5.
NOTE
Cruising should be done at 65% to 75% power until a total of
50 hours has accumulated or oil consumption has stabil-
ized. This is to ensure prop~r seating of the rings and is
applicable to new engines, and engines in service follow-
ing cylinder replacement or top overhaul of one or more
cylinders.
The data in Section 5 shows the increased range and improved fuel
economy that is obtainable when operating at lower power settings. The
use of lower power settings and the selection of cruise altitude on the basis
of the most favorable wind conditions are significant factors that should be
considered on every trip to reduce fuel consumption.
1 July 1978
Revision 1 - 31 March 1983
4-15