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General control line discussion => Open Forum => Topic started by: Tim Stagg on April 05, 2022, 12:53:18 PM
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All,
I am sure there is a post about this somewhere, but I would like to know the optimum place, "how far back from leading edge", to run the zig zag on my plane. I saw this Fitzgerald and Barry applying it at last stunt camp, but cant remember where it was placed.
Parallel to leading edge? or perpendicular to fuse?
Thanks
Tim
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The consensus is that placing them on the 1/4 chord is a good compromise. If your 1/4 chord is straight, then it would be perpendicular to the fuse center line. Most stunt planes have a swept aft 1/4 chord. Mark a spot on the inboard portion and outboard tip indicating the 1/4 chord spot, and connect the two spots with the zz tape.
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Thanks Paul
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Scoozey please. What is zig zag tape?
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it is a clear packing take that you cut into about 3/8" strips with a pinking sheers or a pinking roller cutter and place them on the wing an stab to produce a similar affect to vortex generators. I am sure Brett or Paul can give you a scientific reason why they may or may not work. however, folks that use them say it helps lock your plane in.
I can not explain why, I just would like to try them to see if they make any difference in my airplane.
It is suggest that you use gorilla packing tape because it has a much thicker mill
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There is a short article about Trip Strips that I put together that is on the Flying Lines website that might be helpful. See http://flyinglines.org/nunes.tripstrips.html (http://flyinglines.org/nunes.tripstrips.html) for further information.
Dennis
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Dennis, very well written article. May try them when and if I decide to build another competition stunt plane. D>K
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Or this is what I found. https://wingsandwheels.com/tapes-seals/turbulator-dimple-tape.html
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Dennis,
Thanks for the link to the article, great writeup!!
Cant wait to try them.
Tim
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How do the ZZ strips work compared to just a straight 0.010" length of wire or fishing line positioned in the same location along the wing and stab? Does the size and angle of the ZZ cut make a difference?
Best, DennisT
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How do the ZZ strips work compared to just a straight 0.010" length of wire or fishing line positioned in the same location along the wing and stab? Does the size and angle of the ZZ cut make a difference?
Best, DennisT
Try it out and tell us your results. S?P D>K