[NSRCA-discussion] Proposed rule change

[J N Hiller]

I don’t like it.
Lets just fly a wind corrected vertical track up and down rotating within a half wing span regardless of wind direction or velocity managing the airplane's heading and velocity as needed to make that happen. In short the airplane's flight path and position would appear the same as in still air. As for the figure M the verticals would need to start and finish very near center to maintain maneuver centering if the verticals were allowed to drift downwind. Lets try to maintain geometry using wind corrected flight all the time.
Jim Hiller
 
 
-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Don Ramsey
Sent: Saturday, October 10, 2009 9:17 AM
To: 'General pattern discussion'
Subject: [NSRCA-discussion] Proposed rule change
 
What do you guys think of this rule change for stall turns?
 
In the Judge’s Guide Page RCA 20 of Regulations under “Stall Turns”: 
Change  1.. Lines must have exactly vertical and horizontal flight paths.  To
1.  Horizontal lines must be wings level and parallel to the flight line.  On entry vertical lines must be wind corrected to establish a vertical track.  The wind corrected attitude of the model must not be changed as the stall is approached and any wind drift is not cause for downgrade unless the model drifts out of the maneuvering area.
 
In the maneuver descriptions under “Figure M with or without Rolls” 
Change downgrade 1 from “Model not vertical at start and finish of rolls and stall turns” to
 
1.  Horizontal and vertical lines must be flown as described under “Stall Turns” in the Judge’s Guide above.
 
In the maneuver descriptions under “Stall Turns with or without Rolls” 
Change downgrade 3 from “Model track not vertical at start and finish of rolls and stall turn”  to
 
3.  Horizontal and vertical lines must be flown as described under “Stall Turns” in the Judge’s Guide above.
 
 
Here’s the logic behind the change:
 
Once a crosswind becomes stronger than the speed of the model the model can no longer maintain a vertical track even if turned 90 degrees into that wind.  Stall turns flown as described in the changes always score better with the majority of judges.  This change brings the stall turn in line with the spin in allowing some wind drift of the model as it slows and provides a much more consistent judging standard.
 
 Don
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