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Keep your hand off the release handle during aero tows!



 
 
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  #11  
Old October 12th 13, 08:14 PM posted to rec.aviation.soaring
Del Copeland
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Posts: 24
Default Keep your hand off the release handle during aero tows!

At 18:43 12 October 2013, son_of_flubber wrote:
On Friday, October 11, 2013 2:31:00 AM UTC-4, Derek C wrote:
.... we

were told to start with the stick hard back to contain the speed.

This led to a number of (usually fatal) flick spin accidents,...


What is a Flick Spin?

The simulation videos here
http://www.gliding.co.uk/bgainfo/saf...nch-safety.htm

illustrate Flick
Roll and Spin, but no Flick Spin.


Same thing. Due to rapid pitch up caused by the rotational couple
effect (line of pull below c of g of glider), plus not controlling the
rate of rotation, causing the wings to stall and a flick roll can
follow. Mostly a problem associated with powerful winches and
very rapid acceleration.

Derek Copeland

 




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