Rear Wing

[John Yorke]

Good afternoon one and all

I am in a bit of a quandry:confused: I purchased a GT type wing for my 3rd gen and fitted it the way I thought it should go IE with thin edge as the leading and the thick edge trailing, on my 1st outing I was informed it was fitted the wrong way round so I reversed it, on my last visit to a RX7 specialist I was informed I have it the wrong way round.

Has anyone on here got the definitive answer - your advise would be apreciated.
Regards
John

[J4P RX]

Well without a pic its hard, so if it looks like this:



Then that would be the right way round.  

Lee

[Fish]

John, I understand that it is your FD in last months Jap Performance with the curved wing.

If it is, then it is the wrong way around in the picture. Maybe putting a picture up may help. What make wing is it?

Dan

[Carl]

Hi John,
I think that we had this discussion earlier.
Aerodynamics dictates that in any wing the thickest part of the structure is nearer the leading edge and this applies equaly to aircraft where the lift is needed or cars where down force is required.
The diffrence between Planes and cars is that on a car the aerofoil section is upside down as compared to aircraft.
This means that on a car the topside of the wing should be concave and bottom convex.
The thicker leading edge is designed to split the air that is moving over and under the wing early in it\'s operation and then gradually taper the rear of the wing to reduce turbulance.So Sharp edges should be at the rear of the wing,and leading edge should be more rounded and thicker.
The curve under the wing means that the air has to travel further as it flows as compared to the top of the wing(on cars,with planes being the opposite)which means that effectively the air moves faster than on the top surface which reduces the pressure on the under side.As the slower moving air flows over the top of the wing it is able to exert more pressure(downforce)onthe surface and this is transmitted to the car and road wheels.
In order to be really effective a car needs to be doing well over 100 mph for this effect to be of any use,or put enough of this downforce to work.
Still they look good don\'t they.
If you are not sure of what I am talking about then look closely at aircraft wings and imagine they are upside down,note the thicker and thinner edges.
I hope that this helps.
Kind regards
Carl

[Fish]

John, I knew I would find a link for it somewhere.

About Half Way Down

Dan

[John Yorke]

Thanks Carl - as usual very informative:wave Gives me a better understanding seeing it in print. From that I now have it the correct way round.

Would love to post a picture but I\'m not putor literate, sorry Dan.

[Martin_T]

If you have these kind of Carbon Fibre GT wings.. then it is fitted this way.. although it may LOOK a little wierd to some people! just look at Carisma\'s gold TVR!!

[John Yorke]

Thanks Martin:p that is the exact wing and yes I now have it on that way!

Regards John