[NSRCA-discussion] A question for the experts

[Scott McHarg]

Mr. Watson,
   Does this mean you will be flying FAI soon?

Warmest Regards,
  A soon to be Masters guy

On Fri, May 27, 2011 at 10:23 AM, Glen Watson <ghwatson at comcast.net> wrote:

>
>
> Dave, presents a good argument to fly FAI vs. AMA...AMA is judge more
> harshly.
>
>
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Dave
> Lockhart
> Sent: Friday, May 27, 2011 10:12 AM
> To: 'General pattern discussion'
> Subject: Re: [NSRCA-discussion] A question for the experts
>
> Matt,
>
> If you are judging by the rules, your answer must be different for FAI -
>
> 5B.8 WIND CORRECTION
> All manoeuvres are required to be wind corrected in such a way that the
> shape of the maneouvre as described in Annex 5A.  is preserved in the model
> aircraft's flight.  The exceptions to this grading criterion are in the
> stall turns, and spins, where the model is in a stalled condition.
>
> My opinion is that the AMA book should be updated to be consistent with the
> FAI book on this topic, and the FAI book is clearly better suited to the
> real world dynamics of stall turns in windy conditions.
>
> To answer Don's original question -
> For AMA, by the book, - the maneuver is downgraded for drift.
> For FAI, by the book, - the maneuver is not downgraded for drift.
>
> Regards,
>
> Dave Lockhart
>
>
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
> mjfrederick at cox.net
> Sent: Friday, May 27, 2011 8:53 AM
> To: General pattern discussion
> Subject: Re: [NSRCA-discussion] A question for the experts
>
> I'm not sure where the notion came from that wind drift during a stall turn
> is not downgraded. In AMA judging criteria the only maneuver that
> specifically mentions that no downgrade is given for wind drift is the
> spin,
> and that is only DURING the stalled portion of the maneuver. In a "stall"
> turn there is no true stall of the wing as there is in a spin. If flown
> with
> the proper wind corrections on the up- and down-lines there should be no
> noticable deviation in distance. If there is, the maneuver should be
> downgraded because the pilot failed to make the proper wind correction.
> Even
> if there was a slight drift during the 180 turn at the apex of the lines,
> the pilot should recognize that and incorporate the proper adjustment to
> the
> downline to bring the aircraft back to the original starting distance. To
> me, it's no different than turbulence that might cause the aircraft to
> temporarily deviate from straight and level flight. Adjustments must be
> made
> to return the airplane to th  e original line. I don't feel like pulling up
> the FAI rule book, so I just won't go there, but I'm not sure if my answer
> would be any different.
>
> Matt
>
>
> ---- tocdon at netscape.net wrote:
>
> A question for the judging experts.
>
> Figure M, both Masters and FAI- Yes I know the bottom line rule the best
> presentation gets the best score, but a technical question.
>
> Maneuver flow  in a crosswind.  Plane starts maneuver at 140 meters
> distance
> out.  During the first stall turn the plane drifts out (recall this is a
> stalled maneuver); second stall turn the plane drifts out again (same).
>  Now
> the plane wind corrects in all other aspects of the maneuver but exits
> approximately 20 meters further out than the entry and no defects observed,
> but exit distance is 160 meters.  What is the score given for this
> maneuver?
>
> Best Regards,
>
> Don
>
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-- 
*Scott A. McHarg*
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