<div dir="ltr">Hello all,<div><br></div><div>I was going to say something similar to Phil and Charlie. I will add that even center maneuvers have the same parallax effect that is well described by Charlie. Of course it is more pronounced in the turn around maneuvers. Therefore, I think the #2 rule change is not going to have too much effect on how we are judging now. It appears that it is a reaction to the flight coach (FC) because it is practically impossible for human judges to see the same level of details that can be viewed using FC. I believe that FC can be adjusted to the position that the pilot and judges are in, so it will still be a very powerful tool that will probably be very useful in the near future. </div><div><br></div><div>Good to hear from all. I am trying to get ready for this season. Looking forward to see all,<div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Vicente "Vince" Bortone</div><div><b>NSRCA 1140. Be Proud to show your NSRCA #</b><br></div></div></div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Apr 5, 2023 at 4:50 PM Charlie Barrera via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">Phil, I think the best way to describe the turn around geometry is to have a clear template with 45* angles and circles scribed in it. Place this template at the end of the box and see how parallax affects the geometry. That is why from a judges perspective (pilot also), he is looking for 45* angle and radiuses that are true. We, here at my local field, use this training device to get the perspective right. Hope this helps. Unfortunately, you might need a template. I think CK Aero sells them. …Charlie<br><div><br><blockquote type="cite"><div>On Apr 5, 2023, at 4:20 PM, Phil Spelt via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a>> wrote:</div><br><div>
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Guys, These days I am an SPA contestant, but I have flown and judged the turnaround sequences years ago. (I didn't have the finances to buy $2K to $5K composite airframes and double-reverse contra double rotating props to be competitive.) So I am kind of familiar with the current AMA pattern milieu, and have judged a lot. Can someone please explain to me how pilots and judges, sitting at the center of the flight line, can tell the difference between a 1/2 loop at an end of the box that is geometrically round or just "looks" round? We see what we see -- if it looks round score it well, if it doesn't, mark it down -- no?
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Thanks,
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<div><p style="font-size:12pt;font-family:helvetica,arial,sans-serif;color:rgb(51,51,51)"><span style="font-size:10pt"><em><strong><span style="font-size:8pt">“You will become way less concerned with what other people think of you when you realize how seldom they do.” ― David Foster Wallace, Infinite Jest.</span></strong><br></em></span><span><span><span><span><span><span style="font-family:"Arial Black";font-size:12px"><strong><em>Phil Spelt, AMA 1294, Scientific Leader Member<br>SPA L-18, Board Member, NSRCA 2032, KCRC Emeritus<br>Knoxville, TN 37931 (865) 604-0541c</em></strong></span></span></span></span></span></span></p>
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On 04/05/2023 11:57 AM Mark Atwood via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a>> wrote:
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Hey All,
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Attached are the results from the CIAM plenary meeting and vote that took place on April 1st. These rule changes will go into effect in 2024. Most of the rules that address F3A are minor and merely clarify clerical issues in the rulebook or help outline procedures. There are also changes to the wording around telemetry, but again, only for better clarity. But there are TWO notable rule changes. Neither of which we supported.
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1) Increase the weight limit to 5.5Kg TAKE OFF WEIGHT. This is a straight up increase for electric, and a change to weighing procedure for glow planes to include FULL tank of fuel. The issues here are obvious and I know we have many on both sides of this discussion, but it’s the new rule in FAI.
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2) This one confounds me. They have changed the judging guidelines, such that they no longer want accurate geometry relative to the aircrafts plane of flight, but instead want geometric accuracy FROM THE JUDGES PERSPECITVE. In other words, a half loop at the end of the box needs to LOOK round, rather than BE round relative to the plane of flight. It completely changes our way of flying and makes tools like flight coach useless.
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Personally, I can’t imagine this will last, and more over I can’t imagine this will actually be used. A few of us (US/ UK / AUS) fought hard against it, but in the end it won out. They had no explanation as to how cross box maneuvers will accomplish this (such as a rolling circle) but insisted this is what was wanted. I’m sure there will be much discussion at events prior to this going into effect.
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There were also some minor changes for how ties are handled and better language and procedure for handling smaller championship events (<40 pilots). But most of that is benign.
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F3A Starts on page 25
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