hey guys we have the metal understructure going into our first hood today then a few more layers of glass to go and then after that we are popping it out of the mold and working some bugs out then we will be set for production but for now and in our free time we also have decided to build litle canards or downforce winglets that you se going for 290 bux for the pair in CF in the states and that is only for the bomex bumper at corksport....so we are making some out of fiberglass and plan on selling them for about half the price we just want some feedback for those that like and dont like, uncle ben's or not....but so far they are made for the S4 and we dont know if there are any differences on the bumpers at these particulare points between the s4 and s5

 

by the way.....we have pics coming soon just have to get a hold of a camera and also the desing that we have isnt as big..... and where this one in the pic goes all the way to the rear of the sidemarker ours goes maybe to the first quarter of it...so it isnt as long but the angle of attack is about the same with a ridge on the outer edge to contour the airflow

 

If you are doing 'canards', have you thought about 'wind splits'? The little vertical fins an inch or two tall that go on top of the fender (like the old BMW 3.0 CSLs).

 

i dont think i have ever heard or seen them before.....

 

What I like is to see the design limit wing loading (aka 150% test), resonance fatigue test results, and the operating envelope as stated by the manufacturer.

I would also like to know what type of aviation engineering degree the designer holds, and also what level of bonding and insurance the distributor holds for cases where the product may fail and send the car into a wall.

 

Ha ha, it does not need FAA certification Evil.

 

hey that bumper is starting to come together..looks nice......and yes i have a degree in astronautical engineering, i even developed the heat tiles on the bottom of the space shuttle, so you should have no worries about safety or catostrophic failures at high speed with these canards.........

 

Hehehe, So how did our last mission go?

Abalation cooling(SP?) worked prefect on that one.

 

just posting so i can download this when i get home instea of emailing it to myself..its the prelim design for our bumper.......and what last mission would that be??

by the way this is still dltreezan

 

this is for bigretardhead...this is the stuff i was talking about.....the air goes thru the slit in the bumper underneath the shroud and across the horizontal mount IC and back out of the reverse cowl.....great for cooling and geat for downforce as well....and the lip i was talking about will be integrated as part of the bumper and sold as one unit.......

 

No, but there is a huge liability issue if this component fails and causes loss of life, injury, or other damage. An FC with 400hp can exceed 190mph.

Good, then you will have no problem providing the information that I asked for, and a CFD report would also be nice. So what kind of liability insurance do you have again? Also, please post your business name or registry number. This will help set your professionally-made canards apart from those made in a home garage by some uninsured and unlicensed guy. We wouldn't want any of our forum members getting hurt now, would we?
http://sos-venus.sos.state.or.us:808...SRCH_INQ.LOGIN

BTW, which USA site did you work at?

 

Check thi site out:
http://community-2.webtv.net/stratoc...six/page6.html
Third pic down has a nice shot of them on the top of the front fenders.

 

Funny, every piece of racing spec equipment I have ever bought is covered with all kinds of warnings about how it's your own fault if it breaks and you get hurt.

400HP or not, I don't think an FC will do much over 150 unless you change the gears.

 

Assuming an 8000rpm redline, stock TII transmission with a 0.719 5th gear ratio, stock 4.10 differential and stock-sized 205/55R16 tires with a 78.156" circumference:

Vmph = (C*RPM)/(1056RnRf)
Vmph = (78.156 * 8000)/(1056 * 0.719 * 4.10)
Vmph = 625248 / 3113
Vmph = 201 mph

 

Rice

 

Suddenly I think this became an appearance mod only.

Evil Avaitor, why don't I see posts like this from you when anyone makes any OTHER product? Front lips, Front Bumpers, Spoilers? They all alter the aerodynamics of the car as well. And if canards can be as dangerous as you make them out to be, I think you might have a class-action suit w/ veilside on your hands.

 

And you have room to talk... how? You don't even have an RX-7, and you have a "bumpin" system in your Daytona

 

Oh man, you are actually serious aren't you?

Look at those "canards". I really hope you were just trying to play a joke on us because if you think the half square foot of wing area that both canards (in that pic) have, in such unoptimized tremendously low aspect ratio not to mention being adjacent to a huge body (the bumper), makes your liability skit totally preposterous.

I don't care if the car would be going 150mph. If a "canard" that small breaks you may lose a few pounds of downforce and probably the same amount of parasite drag. Just how this loss of such miniscule downforce would cause the car to get unstable is yet another mystery to me. Remember the large area of low pressure (relative to ambient) over the front of the FC nose? From a total aerodynamic analysis viewpoint, those splitters or whater the FNF guys call them are cosmetic ONLY.


I really hope you were being sarcastic, because you appear to be very schooled in aviation law . . . yet not in aeronautical engineering . . . ?

 

yes i get what you are saying. do you think any fo these body kits are tested to those standards. or covered by any insurance no.... and mine will simply have a disclaimer that states> upon removal of this product from the box or use of the prouct in any form, the buyer/user assumes all liability of this product< or somthing of that nature.... >warning may cause extreme danger to user<

 

So I have to own an RX7 to say when one is ricey?

 

Nah, you just can't own a Daytona

 

haha

 

that is one sweet front bumper. If you guys make something like that, I would definately be interested. About how much are you looking at selling them for???

p.s. It doesn't matter if the bumper has liability insurance or not

 

That would work. I would still like to see the info stated in my first post, as your original question was in reference to us stating what we like and don't like about such products. However, I understand if it is beyond your capabilities or desire. You asked what I liked, and I told you.

I don't have a problem until someone tries to sell them without a business licence and insurance. I'm sure that Veilside and the other vehicle aero kit manufactures have this covered quite well.

Yes, I am serious. True, there wouldn't be much downforce with those canards given their small surface area, but they are located very far from centerline, which means they have a large moment arm. As you know, ailerons and trim tabs are also very small when compared to the large wing to which they are attached, but they still make a significant difference in the lift vector upon deflection. IMO if one of those canards broke off, it would create a rolling motion, which would be a bad thing at high speed. Then again, the canards may not make much difference at all, which is why I asked for the appropriate information in my first post.

As to your question about such small canards having any aerodynamic value, see here:
http://www.teamspencer.com/cars/index.html

BTW, my degrees are in aviation technology and aeronautical science, not engineering or law. My job as a commercial pilot is to analyze aeronautical information in order to perform a safe flight, just so you understand my perspective.

Is that all you nubie Riddle guys can come up with on this subject? Do you just sit around watching Coyote & Roadrunner movies in the UC, and trying to pick up DBCC chicks, or what?

 

such hostility... this is why I tend to hang out more on the smaller forums.