Wednesday, February 18, 2009

Initial Climb - Soft-Rough-Field Takeoff And Climb

After a positive rate of climb is established, and the airplane has accelerated to VY, retract the landing gear and
flaps, if equipped. If departing from an airstrip with wet
snow or slush on the takeoff surface, the gear should not
be retracted immediately. This allows for any wet snow
or slush to be air-dried. In the event an obstacle must be
cleared after a soft-field takeoff, the climb-out is performed at VX until the obstacle has been cleared. After
reaching this point, the pitch attitude is adjusted to VY
and the gear and flaps are retracted. The power may
then be reduced to the normal climb setting.

Common errors in the performance of soft/rough field
takeoff and climbs are:

  • Failure to adequately clear the area.

  • Insufficient back-elevator pressure during initial
    takeoff roll resulting in inadequate angle of

  • Failure to cross-check engine instruments for
    indications of proper operation after applying

  • Poor directional control.

  • Climbing too steeply after lift-off.

  • Abrupt and/or excessive elevator control while
    attempting to level off and accelerate after liftoff.

  • Allowing the airplane to "mush" or settle resulting in an inadvertent touchdown after lift-off.

  • Attempting to climb out of ground effect area
    before attaining sufficient climb speed.

  • Failure to anticipate an increase in pitch attitude
    as the airplane climbs out of ground effect.

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