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Author Topic: Turbulator  (Read 31972 times)

Offline Serge_Krauss

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Re: Turbulator
« Reply #50 on: November 06, 2014, 06:50:41 AM »
I haven't visited Martin Hepperle's pages for some time and hadn't  seen this one. He has posted many clever things of interest to me over the last decade or so. Here he's answered one of my main questions, that of turbulator height/position. Thanks for the link. 'probably should revisit Simons too, although I think I trust Hepperle more.

SK
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Offline Steve Helmick

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Re: Turbulator
« Reply #51 on: November 06, 2014, 10:59:33 AM »
Another tidbit of information I recall from the Free Flight days, regarding turbulator strip height.

The late & great Bob White (a World Champ in F1B and many time USA team member) used strips of basswood for turbulators, got them in the right place (he built his same design for decades), then sanded them down in thickness until they no longer funtioned. Once they didn't work, he removed them and replaced them with strips of the thinnest size that did work. I think he started with 1/32" square, but maybe 1/20".

This seems to me like a reasonable enough method, but for our use, I'd consider (again) trying it on top only and/or one side only, as a method of taking the results from the "I think it's better" stage to the "Oh, it definitely works" stage of testing. You may want to do this with your backup...or second backup plane.  :P Steve 
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Offline Avaiojet

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Re: Turbulator
« Reply #52 on: November 06, 2014, 11:33:33 AM »
Quote from: Howard Rush on November 06, 2014, 06:19:33 AM
Than I thought, too.  If I can figure it out, I'll put in Igor's turbulator location, then work backwards to see what it's for.

All this science and math is well beyond me. n~

I know of no vinyl material, that I can get, which has the required thickness needed for any given cord length.
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Offline RC Storick

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Re: Turbulator
« Reply #53 on: November 06, 2014, 11:51:24 AM »
Quote from: Avaiojet on November 06, 2014, 11:33:33 AM
All this science and math is well beyond me. n~

Pie R round / Cornbread R Square unless you using new math and bake it in a round tin.
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Offline Curare

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Re: Turbulator
« Reply #54 on: November 06, 2014, 05:31:16 PM »
Kline fogelman for stunt? ;D
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Greg Kowalski
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Offline Mark Godfrey

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Re: Turbulator
« Reply #55 on: November 08, 2014, 06:15:41 AM »
Speaking of bending aluminium tube.
Have you tried submerging it in water plugging the end with silly putty freezing it and then bending it?
Works for me but I don't have the spreadsheet to prove it.

:)
M
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Re: Turbulator
« Reply #56 on: November 09, 2014, 10:34:24 PM »
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