Snaps

[george kennie]

And his words make me feel very humble!

RC Steve Sterling wrote:

> The oracle speaks.
>
>      -----Original Message-----
>      From: discussion-request at nsrca.org
>      [mailto:discussion-request at nsrca.org]On Behalf Of Don Szczur
>
>      Sent: Wednesday, April 14, 2004 7:57 PM
>      To: discussion at nsrca.org
>      Subject: Re: Snaps
>
>      Push vertical, 2 of 4, rolling in to the wind to wind
>      correct.  Keep a touch of the same rudder in after the 2 of
>      4 to keep fuselage from weather vaning, but just enough
>      crab, with full power, to prevent wind drift.  Stall, add a
>      little throttle as it comes around for a nice tight stall
>      turn, remembering the throttle curve that is programmed into
>      code 18 for precise throttle resolution around idle to 1/4
>      throttle needed for complete control. As it comes around add
>      a touch of up elevator and some aileron to keep the wings
>      perfectly parallell to the axis of yaw. Hold a touch of
>      rudder as it comes verically down to wind correct the
>      weather vaning (again on the down line). Ease out of the
>      rudder gently to prevent any tail wag on the way down. By
>      now you know the natural frequency of your fuselage and
>      exacly how much rudder is needed to dampen any oscillation
>      after the stall turn.  Get a mental picture on where the
>      snap should be on the vertical down line.  Once at this
>      perfectly centered point on the vertical down line, punch in
>      down elevator, in .25 seconds later come in with the aileron
>      and opposite rudder.  At exactly 320 degrees rotation begin
>      to release the down elevator, then rudder then aileron, thus
>      insuring that the snap speed remains consistent through the
>      snap yet releasing the controls in this order for a precise
>      finish.  Draw an equal line after the snap and then
>      concentrate hard on the radius to make sure that it is
>      exactly the same as the radius going up.  Continue to
>      concentrate hard on the wings level and level pitch exit.
>      Complete.  The Snap Roll is just one element of the overall
>      maneuver where everything, including airspeed up, airspeed
>      down come in to presentation and final score.
>
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