When the desired amount of rotations is
complete, establish a vertical downline
and pull to an upright exit. The rotation
in a spin must be an autorotation, which
can be difficult to discern.
A clue for determining whether
it is an autorotation or not is that an
autorotation will have a visible yaw
component. If the aircraft lacks this yaw
component, it is probably in some type
of an aileron roll. If a judge is certain that
no autorotation occurred, a zero is given.
After the required number of turns is
complete, time and release your control
inputs, establish the vertical line, and pull
to an upright level exit.
When the airplane is approaching
or has stalled, it might crab into the
wind. The yaw attitude of the aircraft
relative to the prescribed degree of
rotation, which in this case is 11/2
turns, might rotate more or less than
the prescribed rotation amount. Being
a wind-corrected maneuver, this is
acceptable. Immediately after 11/2
turns are complete, however, a 90°
wind-corrected vertical downward line
must be seen. The pilot will receive a
1-point deduction for an omitted line,
and 1/2-point deduction per 5° deviation
from wings-level flight.
In closing, you have now learned the
basics to help you understand the Aresti
elements for the figure of the month,
how to visualize a given routine, and
finally, a few techniques for successfully
performing this maneuver.
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Remember that all airplanes fly
differently and might require different
control commands to execute the same
maneuver. Learn from each experience,
ask for advice from fellow skilled pilots,
and enjoy this fine sport!
Until next time, fly hard!
105 Model Aviation JUNE 2017 www.ModelAviation.com