<div dir="ltr"><div dir="ltr">.. Try less wing incidence. <div><br></div><div>John & List - been a long Time. Hope your are well. Here are my setup thoughts:</div><div><br></div><div>1. Speed: Define the speed envelope 1st. Pick you prop, Throttle curve, be consistent. "Trim" at the contest round flying pace. <br></div><div><br></div><div>2. CG - Three critical checks to being correct:</div><div> a. Spin: Rearward enough so you can "park" it on a spin entry with a mild head wind. If your spin entries are always mushing forward - CG too far forward.</div><div> b. Landing: With downline mix turned off - plane "glides" in nicely, flares easily, and slows easily. If your landing is hot, or you find running out of elevator, CG too far forward.</div><div> c. 45 Inverted upline: Plane needs to continue the line for a while then start big loop back to Mother Earth. </div><div><br></div><div>3. Incidences</div><div> a. Engine (1 prop): Zero, leaning negative 1/2'sh degree</div><div> b. Stab: Zero</div><div> c. Wing (mono): Using Robart meter - split the 1/4-1/2 degree. Read from the same side of the meter all the time (don't flip is 1/80 per half, etc.)</div><div><br></div><div>4. Mixes:</div><div> a. Resist the urge to change the airframe to "get rid" of mixes. IE, it is very easy to move CG and such, to get rid of a particular tendency. I would like to suggest that this is generally a bad idea. </div><div> b. Futaba: Use the "EXP 1" Mix for everything. The purpose of this is that generally, you need a small amount of mix immediately off of center, and not much more out at the end of travel. My plane may have 3% of Elector mix, with +70% expo, so that the "mix" happens very quickly off of center. I think this is a more useful mix, because (mostly), very low amounts of actual rudder throw are used in flight (baring stall turn & spin). </div><div> c. Rudd-Elev (EXPO Mix), Rudd-Ail (Expo Mix), Elev-Tht (Point Mix), (use your imagination after those :) to handle individual airframe characterisitcs. About 1/2 the planes I've owned need couple percent of LEFT Rudder (Slave) mixed to Down Elevator (Master) (helps with corner pushes). </div><div><br></div><div>My theory is this: "... run the least angular difference between the engine, wing, stab, with CG set so you can park a spin entry (or mild mush forward if dead calm)." The CG is the invisible geometric "switch" that is always working as you roll the plane. </div><div><br></div><div>Thanks,</div><div>Jim </div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Oct 28, 2019 at 2:44 PM John Fuqua 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-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div lang="EN-US"><div class="gmail-m_-7148643846255311040WordSection1"><p class="MsoNormal">Real quite on the list. Need some advice. What is the trimming fix for a plane that is pulling to the canopy in a vertical upline ??<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">John<u></u><u></u></p></div></div>_______________________________________________<br>
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