Tuesday, February 17, 2009

Lift-Off - Soft-Rough-Field Takeoff And Climb

After becoming airborne, the nose should be lowered
very gently with the wheels clear of the surface to
allow the airplane to accelerate to VY, or VX if obstacles must be cleared. Extreme care must be exercised
immediately after the airplane becomes airborne and
while it accelerates, to avoid settling back onto the surface. An attempt to climb prematurely or too steeply
may cause the airplane to settle back to the surface as
a result of losing the benefit of ground effect. An
attempt to climb out of ground effect before sufficient
climb airspeed is attained may result in the airplane
being unable to climb further as the ground effect area
is transited, even with full power. Therefore, it is
essential that the airplane remain in ground effect until
at least VX is reached. This requires feel for the airplane, and a very fine control touch, in order to avoid
over-controlling the elevator as required control pressures change with airplane acceleration.

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