High Downforce Wings
05-21-2009, 03:17 PM
#16
Tech Addict
JConcepts.. my have had a fair few Proline ones.. all been warped when got.. so not happy.. but JConcepts one is alot stronger and imo looks better
05-21-2009, 09:53 PM
#19
Go take a look at an airplane wing. See the curve on the top, SMOOTHLY transitioned to the leading edge? The UPPER surface of the wing produces the lift, not the lower. (ok, they both produce some, but the curve of the upper surface produces most of the lift.)
Now look at a "high downforce" wing. Flip it over. See the lip along the front? That disrupts the airflow. (Regular wings have that too.)
A regular wing without the lip would probably produce as much or more lift than a high downforce one.
Do they help? Perhaps... but they have more in common with a parachute than a wing.
Now look at a "high downforce" wing. Flip it over. See the lip along the front? That disrupts the airflow. (Regular wings have that too.)
A regular wing without the lip would probably produce as much or more lift than a high downforce one.
Do they help? Perhaps... but they have more in common with a parachute than a wing.
Bernoulli effect type wings have been tried before and they don't work. The drag type wings we use do work though, and since R/C cars are so overpowered the extra drag really isn't an issue.
Anyway, to the OP: The Pro-line HD wing is also very strong. I've heard that the Himoto wing was actually wind tunnel tested. There was a big controversy over it before the 06 worlds, in the end it was deemed to be legal.
05-21-2009, 11:14 PM
#20
Hey,
Currently I'm running the OFNA highdown force wing. It works great however the durability is extremely low. (yes I'm not a pro driver). A few flips and it always has stress cracks after a single race. I also like it because it comes in a high visibility Orange color.
Are there any other (ie J Concepts) high down force wings that have better durability then this one? And maybe come in Orange as well!
I know the original 8ight wing is super durable and I've never encounted this issue with it.. Of course it's not a high downforce one.
Currently I'm running the OFNA highdown force wing. It works great however the durability is extremely low. (yes I'm not a pro driver). A few flips and it always has stress cracks after a single race. I also like it because it comes in a high visibility Orange color.
Are there any other (ie J Concepts) high down force wings that have better durability then this one? And maybe come in Orange as well!
I know the original 8ight wing is super durable and I've never encounted this issue with it.. Of course it's not a high downforce one.
Give this gentlmen a call and if your willing to pay the postage he will send you out a wing free of charge .Black ,fluro yellow or white
mobile +18432414856 usa
His name is ed roberts
here is a photo of the wing
regards ANgelo
05-22-2009, 06:21 AM
#22
Unnecessary
I don't know Cobra's products from any other but they are offering a sample of their product for free and in todays economy that is a brave and bold move that shows confidence in what you are doing. To then shot them down with out explanation is pretty weak and cowardly.
I am not getting one but that is out of laziness.
I don't know Cobra's products from any other but they are offering a sample of their product for free and in todays economy that is a brave and bold move that shows confidence in what you are doing. To then shot them down with out explanation is pretty weak and cowardly.
I am not getting one but that is out of laziness.
05-22-2009, 06:42 AM
#23
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so im looking at two wings one jc hd one AE rc8 wing the jc wing has a
big lip on the front edge the AE wing don't have a lip and i do notice
i think that my car was slower with the jc wing but was thinking that
my tune was off on the fat side so what if i was to grind the lip off
my be any thoughts or just go back to the AE wing
big lip on the front edge the AE wing don't have a lip and i do notice
i think that my car was slower with the jc wing but was thinking that
my tune was off on the fat side so what if i was to grind the lip off
my be any thoughts or just go back to the AE wing
Hmmmm... that lip is there to add strength... removing it would make the wing more aerodynamically correct, but weaken it significantly. Up to you.
Yes, the AE wing is much closer to a proper aerodynamic wing design. Too bad I can't get it without the factory holes, or I would run one... not that I really care about the aerodynamics of my '56 Ford "brick" body truck.
I use the JConcepts wing, just because of durability, and I think it looks good.
05-22-2009, 06:47 AM
#24
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I'm not sure what brought that on... maybe the whole situation with Charlie? Were you involved with that?
I was... and yes, Charlie got almost $200 of my money, and I never saw anything from it. However, you can't REALLY fault Angelo for that. He seems to me like a pretty stand-up guy.
And this is also one of the few wings that is of a relatively proper aerodynamic shape.
I was... and yes, Charlie got almost $200 of my money, and I never saw anything from it. However, you can't REALLY fault Angelo for that. He seems to me like a pretty stand-up guy.
And this is also one of the few wings that is of a relatively proper aerodynamic shape.
05-22-2009, 06:50 AM
#25
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You are correct. The wings that we use on R/C Cars do not use the bernoulli effect to create downforce like wings on full size cars do. The reason for this is because you can scale down the wing size, but you can't scale down the size of air molecules along with that wing. Air stays at the same density it does for full size wings, but now the size of the wing is so small and the speed is so low that there isn't enough pressure generated to create any usable downforce. This is why R/C wings are so huge in scale terms, they have to displace an enormous amount of air to create usable downforce. Think of it this way; for an R/C wing to work the same way a full size wing does the air your R/C car would have to traveling though would have to be as thick and heavy as water.
Bernoulli effect type wings have been tried before and they don't work. The drag type wings we use do work though, and since R/C cars are so overpowered the extra drag really isn't an issue.
Anyway, to the OP: The Pro-line HD wing is also very strong. I've heard that the Himoto wing was actually wind tunnel tested. There was a big controversy over it before the 06 worlds, in the end it was deemed to be legal.
Bernoulli effect type wings have been tried before and they don't work. The drag type wings we use do work though, and since R/C cars are so overpowered the extra drag really isn't an issue.
Anyway, to the OP: The Pro-line HD wing is also very strong. I've heard that the Himoto wing was actually wind tunnel tested. There was a big controversy over it before the 06 worlds, in the end it was deemed to be legal.
While it is true that the Reynolds Number of an RC car wing is very low... the effect is still there. A more pronounced camber on the lower surface would both increase the downforce AND make it stronger... of course the wing would have to be hollow or have a lightweight core to not be ludicrously heavy.
A place to start on airfoils are the ones used on smaller scale RC aircraft.
05-22-2009, 10:01 PM
#26
I'm not sure what brought that on... maybe the whole situation with Charlie? Were you involved with that?
I was... and yes, Charlie got almost $200 of my money, and I never saw anything from it. However, you can't REALLY fault Angelo for that. He seems to me like a pretty stand-up guy.
And this is also one of the few wings that is of a relatively proper aerodynamic shape.
I was... and yes, Charlie got almost $200 of my money, and I never saw anything from it. However, you can't REALLY fault Angelo for that. He seems to me like a pretty stand-up guy.
And this is also one of the few wings that is of a relatively proper aerodynamic shape.
You will get some people putting me down but that doesnt matter as you cannot please everyone and those people only know one side of every story .
But yes you are correct as you said about the lip distrurbing the airflow on the leading edge and trailing edge but as you know we rectify that problem on the trailing edge with our aero fins which cut the air once again and the trailing edge channels that release the flow reducing the drag .
anyway thank you once again for your support brad and everyone else who believes in my products it really means alot sincerly.
regards Angelo
05-22-2009, 10:09 PM
#27
05-23-2009, 08:56 AM
#28
Tech Master
The best High Downforce wings I have tried are VP Pro wings.
www.VP-Pro-USA.com
Try it out, you won't be dissappointed.
www.VP-Pro-USA.com
Try it out, you won't be dissappointed.
05-23-2009, 11:13 AM
#29
The best High Downforce wings I have tried are VP Pro wings.
www.VP-Pro-USA.com
Try it out, you won't be dissappointed.
www.VP-Pro-USA.com
Try it out, you won't be dissappointed.
05-25-2009, 12:49 AM
#30
Tech Regular
iTrader: (2)
Saw this thread on Friday, but thought I would test out the Cobra Racing wings and proline HD ones before posting.
I first bought a TCR one as it looked interesting whilst ordering stuff from amain (I am in the UK). I really liked the way it calmed down the rear end and helped during flight, but the plastic was a too brittle with not enough flex in it to withstand any major tumbles. So I changed back to the Proline ones, and it was completely different, with the back end stepping out and everything. So we looked for some more TCR wings, but amain didn't stock them anymore, so we bought 6 from eBay. I have boiled these ones, and apart from the odd imperfection, I have only broken 1 in about 5months of running (the winter was exceptionally cold here).
Also, my Dad works in F1 so took both the Proline, and TCR wings into work, and asked the aerodynamicists which was better, and they immediately said the TCR one. Just a pointer, that to get superior down force, the two elements must overlap about 4mm, and there should be a gurney flap at 90degrees to the top or the wing, pointing towards the front of the car. This will increase drag slightly but will allow a LOT more down force. Plus the parts that stick up in along the length of the wing (not sure what they are called) should be full height, to give more cornering stability.
I am weary that if I get comfortable with the TCR wings that when I have to return to Proline, I will not be happy with it. My only qualm is that the plastic needs to be more flexible.
Is TCR distributed to the UK? Or is it solely America. If just America, then I think you should consider exporting to the UK, as many people look at mine, and ask where I got it from, and are interested in it due to it's radical looks.
Hope this helps,
Scott
I first bought a TCR one as it looked interesting whilst ordering stuff from amain (I am in the UK). I really liked the way it calmed down the rear end and helped during flight, but the plastic was a too brittle with not enough flex in it to withstand any major tumbles. So I changed back to the Proline ones, and it was completely different, with the back end stepping out and everything. So we looked for some more TCR wings, but amain didn't stock them anymore, so we bought 6 from eBay. I have boiled these ones, and apart from the odd imperfection, I have only broken 1 in about 5months of running (the winter was exceptionally cold here).
Also, my Dad works in F1 so took both the Proline, and TCR wings into work, and asked the aerodynamicists which was better, and they immediately said the TCR one. Just a pointer, that to get superior down force, the two elements must overlap about 4mm, and there should be a gurney flap at 90degrees to the top or the wing, pointing towards the front of the car. This will increase drag slightly but will allow a LOT more down force. Plus the parts that stick up in along the length of the wing (not sure what they are called) should be full height, to give more cornering stability.
I am weary that if I get comfortable with the TCR wings that when I have to return to Proline, I will not be happy with it. My only qualm is that the plastic needs to be more flexible.
Is TCR distributed to the UK? Or is it solely America. If just America, then I think you should consider exporting to the UK, as many people look at mine, and ask where I got it from, and are interested in it due to it's radical looks.
Hope this helps,
Scott