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tc1917(at)hughes.net
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 Posted: Thu Jan 18, 2007 3:08 am Post subject: slingshot |
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Has anyone ever put droop tips on a kolb? How about on a short wing as a
firefly or slingshot? seems it would really help the landing. would it
interfer with the faster flying of a slingshot or would it help the landing
more? would it twist the wing under pressure? Come on, someone has HAD to
thought about it, right? Ted Cowan, Alabama.
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biglar
Joined: 14 Jan 2006
Posts: 457
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| Posted: Thu Jan 18, 2007 4:17 am Post subject: slingshot |
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Years ago, Ron Christensen built shortened droop tips for his Mk III Classic
(he called it the Mk III 1/2) and they didn't work out too well. I forget
the details now, but he experimented with several different tips, and
finally wound up back with the factory plans wingtips. Maybe an archive
search would work, or maybe someone on the List has a better memory for 8 or
9 years ago. Lar.
Larry Bourne
Santa Fe, NM
www.gogittum.com
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_________________
Larry Bourne
Palm Springs, CA
Building Kolb Mk IIIC
"Vamoose" |
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Steve Boetto
Joined: 11 Jan 2006
Posts: 365
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| Posted: Thu Jan 18, 2007 7:37 am Post subject: slingshot |
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Tnk is currently working on some tips for the MKIIIX. It should not be a secret because they had them on display at the Homecoming.
steve B
Firefly on Floats
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jbhart(at)onlyinternet.ne
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| Posted: Thu Jan 18, 2007 7:58 am Post subject: slingshot |
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At 05:07 AM 1/18/07 -0600, you wrote:
| Quote: |
Has anyone ever put droop tips on a kolb? How about on a short wing as a
firefly or slingshot? seems it would really help the landing. would it
interfer with the faster flying of a slingshot or would it help the landing
more? would it twist the wing under pressure? Come on, someone has HAD to
thought about it, right? Ted Cowan, Alabama.
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Ted,
For a Firefly, I believe if you add VG's, go to smaller chord ailerons,
shorten the T bar moment arm, there is no reason to change the tips for
improved landing characteristics. With the changes I have listed, the
FireFly is very light and positive on the controls.
If I was going to rebuild the wings, I would flare out the wing tip at a 45
degree angle from the leading edge to the rear and keep the bottom flat.
Shorten the leading edge and extend the trailing edge to keep the wing area
the same as before. This would help reduce wing tip vortices and provide a
little better cruise with out additional weight.
Jack B. Hart FF004
Winchester, IN
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