Any one found a good source for a 49" rear wing? Seems there are no manufacturers offering wings with this short of a span, and that the shortest wings avalible are in the 52 inch range.
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Any one found a good source for a 49" rear wing? Seems there are no manufacturers offering wings with this short of a span, and that the shortest wings avalible are in the 52 inch range.
APR made a version of the GTC-200 specifically for this class. Then SCCA had to go and change the max chord length for next year- which is now 1/4" shorter than what the APR wing is. So nobody makes one except for the aluminum ricer stuff.
http://www.aprperformance.com/index....d=36&Itemid=44
I'd bet that Kevin or Adam would be glad to make you one to the width of your choice.
http://www.mallenalley.com/wings.html
I really don't know what the width of their wings are but I wouldn't think it'd be too difficult to make one a bit narrower if they needed to.
brooksmotorsports will make the size u want, they made a custom 60" for me
what do such custom wings cost?
Target $1000-1500 for a custom wing.
OTOH, the APR GTC-200 sells for $625 online.
You can buy the APR wing cut to 48"...
I have one, but its the full width 67"
The new STU/STL size limit is 48.25 width by 8.50 chord; all of APR's wings appear to be 8.75 max chord.Quote:
Originally Posted by philstireservice
http://www.aprperformance.com/index....d=36&Itemid=44
Quote:
Originally Posted by Greg Amy
I see that and it is the SCCA spec (48") wing too....???
I would get together with SCCA and get it changed. I wouldn't be surprised if they (SCCA) had no clue......:)
On edit: RESOLVED, see below.Quote:
Originally Posted by philstireservice
Someone else (or numerous someone elses) want to submit that? I've been hammering them with STx rules changes/requests and I don't want to overstep my limited welcome...just request that the original rule be reinstated.
If nothing else, refer to that link and ask them to consider allowing that specific wing, with a max chord of 9 to accommodate the Gurney flap if desired.
To be corrected next Fastrack: 48x10..75.Quote:
Originally Posted by Greg Amy
Dave
Sweet. Thanks!
Quote:
Originally Posted by Dave Gomberg
Wow, just sent in that request too, I guess I have more influence then I thought........:happy204:
Phil, all my future requests are going through you!!!Quote:
Originally Posted by philstireservice
;)
The wing issue was one of the requests I sent back in August when they proposed the entire ball of wax changes in ST. So it's been sitting on their plate for months. :p
Well, here I was all ready to tell them that my 8.5" molds are complete and that I'd be happy to make them wings, but...is the CRB really going to change the rule back to 10.75"?Quote:
Originally Posted by Dave Gomberg
Welllll, technically, the 8.5" was only a proposed rule change... http://forums.maxima.org/images/smilies/peepwall.gif
Hey if I wanted a custom build wing I could throw a few $k at Rutan's fomer company a few miles down the road.
Are you guys trying to fly?
Yup.Quote:
Originally Posted by JeffYoung
I already have:blink:Quote:
Originally Posted by JeffYoung
I am informed by email that the rule for 2011 is going to be 8.5", so on the presumption that info is correct my previous statement about being ready to make wings stands. The molds for an 8.5" constant-profile, single-plane wing are complete and waiting. $795 plus shipping (and sales tax to Cali customers). Thx! Stan
Hello,
My name is Brooks Friedeman and I am the owner of Brooks Motorsport Composites LLC. I just wanted to introduce myself, as I was informed that I was mentioned in this thread and have been asked if I could supply any STU Wing.
I can certainly apply my popular profile to this wing size, or any other for that matter, as a huge amount of my work is custom. If ~4 or more people committed to it, I would custom design CAD files for uprights, cradles and endplates with would be laser cut out of T6 aluminum and black anodized (More than happy to not do uprights if people already have something). Along with the specified carbon wing, that package would cost ~$900. Of course, I can also do one-off work with handmade carbon parts for a bit more.
I also do splitters, canards, and various other parts out of carbon. Please let me know if I can help at all here. Thanks much.
Please email brooks at brooksmotorsport dot com. For better pictures and more information. Thanks much.
Just a heads-up for those of you thinking about an APR wing...
I talked to Tony Nguyen at APR last week about the 8.75" dimension listed on their website. Actually I asked him for max chord length and total wing area to be armed with data when I submit a request for the GTC-200 to be allowed even though the spec'd dimensions exceed the new rule for chord length.
Tony went out to the shop and measured one of their wings, and it's right at 8.5" at the center. basically it depends on how you hold the tape measure whether it's over or under due to the curves on the leading and trailing edges of the wing. Honestly I don't think anyone would ever give you crap about it, but I know how anal some of the rule nazis can be......
Also, the GTC-200 is/was listed on SCCA Pro's allowed wings list for Touring class- which was spec'd at 8.5" x 48" just like ours is now. I haven't been able to find the list on pro racing's website, but it would be good ammo to have as well- showing that someone in SCCA agreed that it met the 8.5 x 48 regulation.
Save your paper; that request has already been submitted.Quote:
Originally Posted by Matt93SE
I have a copy of that Pro Racing document listing the APR GTC-200 as an explicitly approved wing for WC Touring as of November 2009 (right before they changed the rules to the new classes for 2010 <rolleyes>). Given that the 2010 PRR did not include the specs from the 2009 PRR, and the 2009 PRR was referenced for the 2010 GTS class, that change was never published elsewhere.
Regardless, a little birdie told me that STU/L will probably be keeping the 8.5" chord requirement, but with the APR GTC-200 wing specifically allowed due to its prior inclusion in WCT 2009 (as I understand it, all other wings from the 2009 PRR meet the 8.5x48 requirement, which is where that dimension came from).
That, of course, is nothing more than personal opinion, rumor, and innuendo, and - of course - is not actually official/approved until it appears in Fastrack.
Sit tight.
GA
P.S. For technical reference, a wing's "chord" is the straight-line measurement from the center of the radius of the leading edge to the center of the radius of the trailing edge. Ergo, it's not a distance that can always be accurately measured with a tape...
Thanks, Greg. personal opinion, rumor, and innuendo aside, I think you're a pretty OK guy.... ;)
Based on the response from my letter back in August, I figured they were pretty dead-set on the 8.5" number and can see why.
As for the chord length measurement, you cornfused me with your explanation.. as I understood it, it was the total length, end to end. i.e. if you stuck a set of huge calipers over the ends of it, the total measurement would be the chord length. See attach drawing of simplified shape.. would the chord length be 6" or 4"?
In your simple example, the wing chord would be 6", as that measurement is from the center of each radii.Quote:
Originally Posted by Matt93SE
However, consider the case of a cambered wing (sorry for the image from Wikipedia):
http://upload.wikimedia.org/wikipedi...ometry.svg.png
The wing chord is the straight-line distance from point 2 to point 7; you can see that this cannot be accurately measured with a caliper.
GA
On edit: this image is from this reference: http://en.wikipedia.org/wiki/NACA_airfoil
Makes more sense now.. although measuring end to end on a wing the size we're talking about would be within a few hundredths probably..
Thanks for the diagram. I think you mean the center of curvature, not center of radius. The center point of a radius is by definition not on the curvature.Quote:
Originally Posted by Greg Amy
I do mean that, thank you.Quote:
Originally Posted by Eagle7
That's what confused me. the center of the radius would be, well, the center. :)Quote:
Originally Posted by Eagle7
I searched and searched for a wing. I called APR to see if they could trim theirs. At that point they told me the website was wrong and that it was 8.5 and that they had submitted it to the SCCA and it's legal. So there it sits on the back of my car. On top of that it was one of the more reasonably priced wings. I was on the receiving end of some rather negative comments towards club racing by some of the "time Attack" wing suppliers out there. It was starting to get depressing hunting for a wing.Quote:
Originally Posted by Greg Amy
Not sure where you're going with that, Mr. Sideways, but I just want to make sure you read the latest Fastrack? The APR GTC-200 has been explicitly approved for use in STU/STL, regardless of its size:
http://www.scca.org/documents/Fastra...k-jan-club.pdf
Greg, No where to go with that, just seemed the WING world doesn't seem to care about club racing.
I'm excited that it's legal. I skimmed the fastrac but didn't catch that the wing had been outlined as legal. That's relaxing as I just walked out and measured the wing at 8.6ish inches with a tape measure.
Whomever I talked to at APR mentioned they had received a lot of calls regarding this. At first it seemed like he was brushing off my legal concerns but I could imagine anyone's persona after receiving the same call over and over.
Edit... just spotted it. I didn't read far enough down.
"SUPER TOURING
1. #3276 (Phil Phillips) APR Wing - SCCA spec - chord width
Add to end of sentence 9.1.4.D.2 STU and STL
“APR performance wing GTC-200 part #AS-104801, variable cord length (8.75” Inner/6.75” Outer), is permitted.”
Since this thread is about sources for wings... Seemed like an apropriate place to place this news:
http://forums.bimmerforums.com/forum....php?t=1944088
Ugh, sorry to hear that...Eric Heinrich and I are running his rear wing... - GA
http://i1201.photobucket.com/albums/...g/IMG_0497.jpg