Saturday, February 21, 2009

Incipient Phase

The incipient phase is from the time the airplane stalls
and rotation starts until the spin has fully developed.
This change may take up to two turns for most airplanes.
Incipient spins that are not allowed to develop into a
steady-state spin are the most commonly used in the
introduction to spin training and recovery techniques. In

this phase, the aerodynamic and inertial forces have not
achieved a balance. As the incipient spin develops, the
indicated airspeed should be near or below stall airspeed,
and the turn-and-slip indicator should indicate
the direction of the spin.

The incipient spin recovery procedure should be
commenced prior to the completion of 360° of
rotation. The pilot should apply full rudder opposite
the direction of rotation. If the pilot is not sure of the
direction of the spin, check the turn-and-slip indicator;
it will show a deflection in the direction of rotation.

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