FAI 2 turn opposite spin judging

[Don Ramsey]

Wayne,

Here's the way it was judged at the team selection.  The crab is OK to
correct for the wind. The first spin should end with the wings perpendicular
to the flight line and the second should end in the same manner.  The rate
of rotation is not to be judged and can vary between the 2 spins.  The
reversal must be immediate.  Exit should be near vetical but not necessarily
exactly vetical. There must be a straight line after the 1/4 loop before the
half roll out and a line after the half roll to complete the maneuver.

All contestants were invited to the judges meeting and should have been
aware of how each element would be judged.

Don


----- Original Message ----- 
From: "Wayne Powell" <service at clubmanprops.com>
To: <discussion at nsrca.org>
Sent: Wednesday, June 11, 2003 8:32 PM
Subject: FAI 2 turn opposite spin judging


> A question for the judging experts in the group...
>
> In FAI there is a 4 turn spin, 2 each in opposite directions.  For the
sake
> of this question, assume a strong 90' blow-in crosswind.  Approaching from
> left to right, the aircraft is crabbed 45 degrees to keep on the line and
> opts to enter the spin to the left. If this were a 3 turn spin, per the
rule
> book, the pilot would be expected to perform slightly less than 3 complete
> rotations to end up with wings perpendicular to the flight line, 2 and 7/8
> rotations.
>
> In the FAI spin, should I expect to see 1 and 7/8 to perpendicular
followed
> by 2 full turns in the opposite direction?  I'm looking to understand what
> the center point when changing directions of the spin will look like.
>
> BTW, learned something on the humpty discussion this week - I've been
flying
> the Masters humpty with options wrong for 2 years when I didn't opt for
1/4
> rolls!  I'll do better this weekend...
>
> Thanks!
>
> Wayne Powell
> Bolly Props North America
> http://www.BollyProps.com
> 1-877-WEFLYRC
>
>
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