Wing Flap Settings; Crosswind Takeoff - Cessna SkyHawk SP 172S Operating Handbook

CESSNA
MODEL 172S NAV Ill
GFC 700AFCS
TAKEOFF
(Continued)
WING FLAP SETTINGS
SECTION 4
NORMAL PROCEDURES
Normal takeoffs use w'mg flaps UP - 1
oo.
Using 1
oo
wing flaps reduces
the ground roll and total distance over an obstacle by approximately 10
percent. Flap deflections greater than 10° are not approved for
takeoff. If 1
oo
wing flaps are used for takeoff, the flaps should stay at
10° until all obstacles are cleared and a safe flap retraction speed of 60
KIAS is reached. For a short field, 10° wing flaps and an obstacle
clearance speed of 56 KIAS should be used.
Soft or rough field takeoffs are performed with 10° flaps by lifting 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. When departing a
soft field with an aft C.G. loading, the elevator trim control should be
adjusted towards the nose down direction to give comfortable control
wheel forces during the initial climb.
CROSSWIND TAKEOFF
Takeoffs under strong crosswind conditions 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, then the elevator control is used to quickly, but
carefully, lift the airplane off the ground and to prevent possible settling
back to the runway whHe drifting. When clear of the ground, make a
coordinated turn into the wind to correct for drift.
172SPHBUS-OO
u.s.
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