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Van's Wheel Fairings

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n184da(at)volcano.net
Guest

Posted: Tue Aug 29, 2006 6:45 am Post subject: Van's Wheel Fairings

I am replacing (finally!) my original, old style wheel fairings, for Van's "new" Pressure Recovery fairings.Any ideas on what works best for a minimal tire-to-faring clearance around the lower opening?



Thanks,





 

Derrick L. Aubuchon 

RV-4: N184DA (450+ hrs) 

Jackson/Westover -Amador County (O70) 

n184da(at)volcano.net (n184da(at)volcano.net) 



  



 [quote][b]

dan(at)rvproject.com
Guest

Posted: Tue Aug 29, 2006 7:23 am Post subject: Van's Wheel Fairings

Fingertip width clearance imho.  Your finger  may vary...  

  

 do not archive

 )_( Dan

 RV-7 N714D

http://www.rvproject.com

 [quote]   ---

truflite(at)yahoo.com
Guest

Posted: Tue Aug 29, 2006 9:38 am Post subject: Van's Wheel Fairings

Pardon my ignorance, but what is a pressure recovery

wheel pant as opposed to a regurlar wheel pant?



Dave Nellis

N416DN (Res.)

7A Emp



--- Dan Checkoway <dan(at)rvproject.com> wrote:



[quote] Fingertip width clearance imho.  Your finger may

 vary...  

 

 do not archive

 )_( Dan

 RV-7 N714D

 http://www.rvproject.com

   ---

Dale Ensing

Joined: 11 Jan 2006
Posts: 571
Location: Aero Plantation Weddington NC

Posted: Tue Aug 29, 2006 10:01 am Post subject: Van's Wheel Fairings

They have more rounded sides, front to back, with a taber toward the rear

that sort of reverses or becomes neutral at the trailing edge vs. the older

fairing which had  more flat sides. Van made change in about 2000. New one

supposed to have less drag.

Dale Ensing

---

_________________
Dale Ensing
RV-6A
Aero Plantation
Weddington NC

ronlee(at)pcisys.net
Guest

Posted: Tue Aug 29, 2006 10:28 am Post subject: Van's Wheel Fairings

At 11:37 AM 8/29/2006, you wrote:

 	  Quote: 	
		  



Pardon my ignorance, but what is a pressure recovery

wheel pant as opposed to a regurlar wheel pant?


	


The old style are narrower.  I doubt that you need to worry about

having the old style.



Ron Lee



Do not archive

c.ennis(at)insightbb.com
Guest

Posted: Tue Aug 29, 2006 12:13 pm Post subject: Van's Wheel Fairings

Derrick,

   If you expect to fly from only asphalt and  never have a tire low on pressure..a 1/4 inch around is enough.

  If on the other hand you will be flying in  the real world, 5/8 inch is the minimum side clearance I could stand. Front and  rear of the tread I use 1 inch which allows most of the grass I pick up from my  home field to exit without excessive buildup. Yes, I did start with 1/4 inch all  around and increased the clearance from there.  

 Your results may vary. 

  Charlie Ennis N60CE

 [quote]   ---

lsbrv7a(at)yahoo.com
Guest

Posted: Tue Aug 29, 2006 12:24 pm Post subject: Van's Wheel Fairings

I understand there is a high pressure area formed on the trailing portion of this shape that in effect recovers some of the pressure required to push the leading edge through the air.  

   

  I heard a story of a blimp with this shape collapsed the aft portion of the blimp when sufficient speed and recoverd pressure was obtained.



Dave Nellis <truflite(at)yahoo.com> wrote:

   	  Quote: 	
		  --> RV-List message posted by: Dave Nellis 



Pardon my ignorance, but what is a pressure recovery

wheel pant as opposed to a regurlar wheel pant?

Do not archive 	


Sherman Butler

RV-7a Wings

Idaho Falls

  	 		Get your own [url= http://us.rd.yahoo.com/evt=43290/*http://smallbusiness.yahoo.com/domains]web address for just $1.99/1st yr[/url]. We'll help.

martin(at)gbonline.com
Guest

Posted: Tue Aug 29, 2006 6:14 pm Post subject: Van's Wheel Fairings

Derrick,

 When I built my RV8 in 1999, I experimented with  several  wheelpant and tire variations.  My objective was to obtain  the most speed and the least drag possible.  I found out that when I used  any of the various cheap tires, I needed at least a 1/2 inch clearance around  the tire casing, because when landing etc. the cheap tires would expand and rub  the wheelpant.  I solved the problem by installing Goodyear Custom III  tires and tubes. The Custom III series has a much stiffer tred and side casing  and holds its shape even with a hard landing.  Note:  the lower  (closer to ground) you install the wheel pant, the faster you will go.  

 I tried Vans pressure recovery pants first and then  went to Sam James pressure recovery pants because they went faster and looked  better.

 Good luck with your project.

 Dick Martin

 RV8 N233M

 the fast one

 1350 hours - it gets better every day

 [quote]   ---

chaztuna(at)adelphia.net
Guest

Posted: Wed Aug 30, 2006 4:08 am Post subject: Van's Wheel Fairings

Dick

  Two questions.

 Can you recommend any other name brand tires besides Goodyear?

 What speed gain did you see by using the Sam James wheel pants? 

 Charlie Kuss



 



 [quote]Derrick,

 When I built my RV8 in 1999, I experimented with several  wheelpant and tire variations.  My objective was to obtain the most speed and the least drag possible.  I found out that when I used any of the various cheap tires, I needed at least a 1/2 inch clearance around the tire casing, because when landing etc. the cheap tires would expand and rub the wheelpant.  I solved the problem by installing Goodyear Custom III tires and tubes. The Custom III series has a much stiffer tred and side casing and holds its shape even with a hard landing.  Note:  the lower (closer to ground) you install the wheel pant, the faster you will go. 

 I tried Vans pressure recovery pants first and then went to Sam James pressure recovery pants because they went faster and looked better.

 Good luck with your project.

 Dick Martin

 RV8 N233M

 the fast one

 1350 hours - it gets better every day

   ---

Jerry Grimmonpre'

Joined: 09 Jan 2006
Posts: 144
Location: Huntley, Illinois 60142

Posted: Wed Aug 30, 2006 5:49 am Post subject: Van's Wheel Fairings

Does anyone know the difference between Goodyear Custom III  tires and the earlier Custom II tires?  

 Many thanks  ....

 Jerry Grimmonpre'

  

 [quote]   ---

tcervin(at)valkyrie.net
Guest

Posted: Wed Aug 30, 2006 4:10 pm Post subject: Van's Wheel Fairings

I have Goodyear Custom II tires and they also maintain their  shape.....stiff well made sidewalls.

                                                                                                                                           Tom in Ohio RV6-A

 [quote]   ---

martin(at)gbonline.com
Guest

Posted: Sat Sep 02, 2006 6:23 pm Post subject: Van's Wheel Fairings

Charlie,

 I used Goodyear because at the time they were  readily available to me.  I have not kept up with the airplane tire market,  so I cannot recommend any other brand.  I will say, however, that the  performance and service life on my RV8 with the Goodyear Custom III has been  excellent.

 As near as I can tell, I gained about 5 knots with  the Sam James wheel pants.  I flight tested both pants and the James pants  are faster.

 Dick Martin

 RV8 N233M

 the fast one

 [quote]   ---

Doug Gray

Joined: 10 Jan 2006
Posts: 112
Location: Sydney, Australia

Posted: Sat Sep 02, 2006 9:06 pm Post subject: Van's Wheel Fairings

Gained 5 knots against which wheel pants from Vans? PR or the earlier

boxy ones.



On Sat, 2006-09-02 at 21:21 -0500, dick martin wrote:

 	  Quote: 	
		   Charlie,

 I used Goodyear because at the time they were readily available to me.

 I have not kept up with the airplane tire market, so I cannot

 recommend any other brand.  I will say, however, that the performance

 and service life on my RV8 with the Goodyear Custom III has been

 excellent.

 As near as I can tell, I gained about 5 knots with the Sam James wheel

 pants.  I flight tested both pants and the James pants are faster.

 Dick Martin

 RV8 N233M


	


 	  Quote:

martin(at)gbonline.com
Guest

Posted: Sun Sep 03, 2006 5:42 pm Post subject: Van's Wheel Fairings

I had  Vans later style round profile "pressure recovery" wheel pants, not 

the old style



Dick Martin

RV8 N233M

the fast one

---

FLYaDIVE(at)aol.com
Guest

Posted: Sun Sep 17, 2006 3:55 am Post subject: Van's Wheel Fairings

In a message dated 8/29/06 10:16:43 PM Eastern Daylight Time, 

martin(at)gbonline.com writes:



The Custom III series has a much stiffer tred and side casing and holds its 

shape even with a hard landing.



 	  Quote: 	
		   I tried Vans pressure recovery pants first and then went to Sam James 

 pressure recovery pants because they went faster and looked better.

  Good luck with your project.

  Dick Martin

  RV8 N233M

==========================
	


Dick:



I can understand the looking better part.  But, how much faster and how did 

you determine that?



Barry

"Chop'd Liver"

martin(at)gbonline.com
Guest

Posted: Mon Sep 18, 2006 5:55 pm Post subject: Van's Wheel Fairings

Barry,

I had Vans pants installed and flying first.  I fitted Sam James pants and 

flew them.  Inorder to determine the performance, which appeared to be 

faster, I reinstalled Vans pants and flew them and then removed them and 

flew the Sam James pants an hour later.  The James pants were approx 5 knot 

faster +/- l knot..

Dick Martin

RV8 N233M

the fast one

---

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