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Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
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 Posted: Sat May 05, 2007 6:24 pm Post subject: WING TIPS |
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I notice there are two styles of wing tips being offered at the present time. The classic drooped tips and the Hoerner style.
I have the drooped style on my plane but I was wondering if any one has tried both styles and found any increase in lift of one style over the other. I fly entirely off water on floats ( the only way to go ) and as you expect every bit of lift I can get is appreciated.
C-FINB is ready for flight if the ice will ever melt!.... next week is looking good.
[img]cid:151192002(at)06052007-17F1[/img]
Picture taken last spring.
It was mentioned to me that the drooped tips obscure visibility... Has any one else noticed this?
[img]cid:151192002(at)06052007-17F8[/img]
Noel Loveys, RPP, AME intern
Campbellton, Newfoundland,
Canada
Kitfox Mod III-A, 582, B box, Ivo IFA
Aerocet 1100s
noelloveys(at)yahoo.ca (noelloveys(at)yahoo.ca)
Do not archive
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_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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xfire
Joined: 23 Mar 2007
Posts: 16
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| Posted: Sun May 06, 2007 6:58 am Post subject: Re: WING TIPS |
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Noel,
This is a bit off topic, but have you flown with and without the ventral fin on your fox ? I am thinking of building one for my Avid if it really helps as much as I think it will. Can you get the basic dimensions of the fin for me?
Thanks
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Leonard Perry
Soldotna AK
Avid "C / Mk IV"
582 Full lotus 1260
90% rebuilt |
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Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
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| Posted: Sat May 12, 2007 5:27 pm Post subject: WING TIPS |
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Leonard:
I'll get you the dimensions and a couple of photos in the morning. Sorry I was away for a while.
I haven't flown without the fin and I do think it would make a considerable difference. There are several planes that use additional fins when the floats are installed and they all work to help the plane to fly straight.
[img]cid:029561201(at)13052007-2309[/img]
Noel Loveys, RPP, AME intern
Campbellton, Newfoundland,
Canada
Kitfox Mod III-A, 582, B box, Ivo IFA
Aerocet 1100s
noelloveys(at)yahoo.ca (noelloveys(at)yahoo.ca)
Do not archive
[quote] --
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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akflyer
Joined: 07 May 2007
Posts: 574
Location: Soldotna AK
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| Posted: Sat May 12, 2007 5:54 pm Post subject: WING TIPS |
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| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________
DO NOT ARCHIVE
Leonard Perry aka SNAKE
Soldotna AK
Avid "C" / Mk IV
582 (147 hrs and counting on the rebuild)
IVO IFA
Full Lotus 1450
#1 snake oil salesman since 1-22-2009
I would rather die trying to live, than to live trying not to die.... |
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av8rps(at)tznet.com
Guest
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| Posted: Mon May 14, 2007 5:33 am Post subject: WING TIPS |
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[quote]
Leonard, I put 1300 hours on three different Avid Flyer models, 90% of those hours on floats. And none of those hours included use of a ventral fin. I never noticed any issues for not having one. The Avids flew beautifully on floats without a ventral fin, and they were extremely maneuverable in all flight modes (fwiw - I did most everything you can do with one on floats too...)
In the last 2 years I have been flying a Kitfox IV-1200 on amphib floats. It has the standard Kitfox ventral fin. It too flies good as a seaplane, but will not slip anywhere near as well as the Avid Flyers did. I suspect that is because of the ventral fin on the Fox, and the fact that the Avid has a "notch" in the back of the fuselage that the Kitfox doesn't. I've not bothered flying it without, but believe if I did it would just take a little adjusting to the increased adverse yaw.
So in my opinion adding a ventral fin to an Avid (or a kitfox for that matter) is probably a little overkill. You won't see significant flight characteristic changes. And the airplane will have adverse yaw either way.
And last but not least, one big detriment of having a ventral fin is when you try to turn the airplane around on a dock, you can't swing the tail over a dock without hitting the ventral fin. Kind of a pain.
Paul Seehafer
Central Wisconsin
Model IV-1200 912ul on Aerocet amphibs Avid A-model 532 Rotax on Avid Floats
IVO prop
[img]cid:005001c7962c$390dc680$0442aa42(at)pc1[/img][img]cid:005101c7962c$39128170$0442aa42(at)pc1[/img]
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