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Wing Strut Fairings

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fly2wb(at)dishmail.net
Guest

Posted: Fri Nov 23, 2007 6:04 am Post subject: Wing Strut Fairings

Hey John,



 Have you guys been able to come up with the new lightweight wood wing

strut fairings yet or are you still using the old plastic ones.



Need to put some on my plane sometime but hesitant to use my plastic ones

if the new ones are lighter.



Brad

Wichita

5-lyc

Flying



do not archive

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aerobatics(at)aol.com
Guest

Posted: Fri Nov 23, 2007 8:23 am Post subject: Wing Strut Fairings

there are many options here.... one thing for sure, adding fairings 

makes a huge difference.  I simply faired balsa behind the tube only, 

then fiberglassed, then filled and painted.  Took some time but felt 

well worth the effort.... any questions on my method will be glad to 

help ...

Dave

________________________________________________________________________

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Mnflyer

Joined: 15 May 2006
Posts: 78

Posted: Fri Nov 23, 2007 4:55 pm Post subject: Re: Wing Strut Fairings

Hi Dave I am interested in how you did your strut fairings, I've purchased balsa to do my struts but haven't started so any help / pointers would be greatly appreciated.

Thanks GB

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_________________
GB
MNFlyer
Flying a HKS Kitfox III

arholland

Joined: 26 Jul 2006
Posts: 5

Posted: Thu Jan 31, 2008 5:43 pm Post subject: Re: Wing Strut Fairings

what do you want for your plastic ones?

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_________________
Allen Holland
Munford, TN

bigboyzt0yz

Joined: 29 Jan 2008
Posts: 29
Location: Centeral Maryland

Posted: Thu Jan 31, 2008 9:27 pm Post subject: Re: Wing Strut Fairings

Looking for the plastic covers to buy does anyone have some they want to sell and how heavy are they? I was thinking of bending some out of coil stock. Are they better round on the front or sharp like the extruded ones?

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_________________
Lee Fritz in Owings Mills Md. 2002 KitFox-IV Classic/912UL/Warp drive taper tip/100% Complete ( Extras Strut fairings08, Grove gear09,) 300 hrs since Aug 07 "Have your feet on the Pedals and keep reaching for the sky".

Guy Buchanan

Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA

Posted: Fri Feb 01, 2008 8:04 am Post subject: Wing Strut Fairings

At 09:27 PM 1/31/2008, you wrote:

 	  Quote: 	
		  Looking for the plastic covers to buy does anyone have some they 

want to sell and how heavy are they? I was thinking of bending some 

out of coil stock. Are they better round on the front or sharp like 

the extruded ones?


	


Lee,

         I forgot to tell you about the under-seat storage. Murle 

Williams sells a nice box and door that fits in the seat pan. It's 

useful for small maintenance items; things you don't use in flight. 

http://www.sonoragraphics.com/williamsaviation/underseat.html. You'll 

want to dig through the rest of Murle's site for more interesting 

Kitfox stuff. http://murlewilliamsaviation.com/ (He also sells a glove box.)

         Check the archives on the wing strut fairings. John 

(www.kitfoxaircraftllc.com) has gone away from the PVC because it's 

so heavy. I think he's now shaping them, but claims to sell them, as 

well as other strut fairings. Also check out Aircraft Spruce's 4130 

streamlined tubing. You can make new N struts and horizontal 

stabilizer struts from these. (Or you can just cover the existing, if 

you want to suffer the weight.) I've seen similar streamlined tubing 

in aluminum, but I couldn't find it at ACS.

Guy Buchanan

San Diego, CA

K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.

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_________________
Guy Buchanan
Deceased K-IV 1200
A glider pilot too.

propellerdesign(at)tele2.
Guest

Posted: Sat Feb 02, 2008 1:36 pm Post subject: Wing Strut Fairings

Did some new work on wingstruts.



with data from a book, I guess it is more accurate then the "Windtunnel" 

that seems to be very wrong at low Re numbers.



See the round tube drag, in book it say Cd is 1.0 - 1.17, not so in the 

windtunnel.



anyway, it looks like with a good airfoil instead of tube, drag can be one 

tenth or less. NACA 670xx or NACA 00xx-65 is good ones.



How many meter tube is it? or feet?



Result; from book, better with 30% or less, from windtunnel 40%, anyone have 

a better windtunnel program?



Jan

---

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