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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 07-10-2017, 02:30 PM   #57
Joesurf79
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Originally Posted by VeloxEric View Post
Exciting update!

This is a photo of the plug (CNC machined from our geometry, the white piece) and the top half of the mold (blue piece).



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I see the picture now, looks pretty cool! I'm in the market for a wing in the next couple of months... What's the ETA looking like?
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Old 07-11-2017, 11:32 PM   #58
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Originally Posted by VeloxEric View Post
Exciting update!

This is a photo of the plug (CNC machined from our geometry, the white piece) and the top half of the mold (blue piece).

Thanks,
Eric
So if that's the top of the mold does that mean it's swan neck mounting? No endplates?
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Old 07-12-2017, 02:06 AM   #59
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... No endplates?
Winglets are better. They are sooooo much better.
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Old 07-12-2017, 11:09 AM   #60
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Winglets are better. They are sooooo much better.
How are they better?
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Old 07-12-2017, 01:08 PM   #61
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How are they better?
Endplates generally have to be larger than winglets to reduce the wingtip vortex by the same amount. In my opinion, it's a brute force approach where the main benefit is ease of analysis and design particularly where large adjustments to geometry are expected.

Winglets on the other hand are difficult to design properly, but can be far more effective at reducing the vortex, as they actively counter the vortex, rather than just getting in the way.

Not sure what your level of aero experience is, but the reason you want to reduce the vortex is because the energy to rotate the air has to come from somewhere. That shows up as induced drag and is one of the main differences between 2d and 3d flow.

The only problem I see with this design (assuming they are going to do a bit more refinement through testing) is that you will lose some of the benefit of the winglets as you adjust for aoa that is different than the design point. Assuming this is is meant to be adjustable, it would be really F'in cool if there were removable modular wingtips for different aoas, but not sure if there is a business case to justify a redesign or manufacturing.

Sorry, nerding out real hard on this. I don't get to look at cool aerodynamics things anymore.
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Old 07-12-2017, 01:47 PM   #62
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So if that's the top of the mold does that mean it's swan neck mounting? No endplates?
Yes swan neck. No endplates on this wing. Endplates were not done to cut cost and to keep downforce down. Goal was a wing to make good downforce for the average track guy. This is not a high downforce wing.


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Originally Posted by Spuds View Post
Endplates generally have to be larger than winglets to reduce the wingtip vortex by the same amount. In my opinion, it's a brute force approach where the main benefit is ease of analysis and design particularly where large adjustments to geometry are expected.

Winglets on the other hand are difficult to design properly, but can be far more effective at reducing the vortex, as they actively counter the vortex, rather than just getting in the way.

Not sure what your level of aero experience is, but the reason you want to reduce the vortex is because the energy to rotate the air has to come from somewhere. That shows up as induced drag and is one of the main differences between 2d and 3d flow.

The only problem I see with this design (assuming they are going to do a bit more refinement through testing) is that you will lose some of the benefit of the winglets as you adjust for aoa that is different than the design point. Assuming this is is meant to be adjustable, it would be really F'in cool if there were removable modular wingtips for different aoas, but not sure if there is a business case to justify a redesign or manufacturing.

Sorry, nerding out real hard on this. I don't get to look at cool aerodynamics things anymore.
Our winglets were not designed to outperform endplates, more to cut cost. Wing is adjustable from 0-12 degrees, but the efficiency drop-off doesn't happen until higher angle of attacks.
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Old 07-12-2017, 02:28 PM   #63
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Our winglets were not designed to outperform endplates, more to cut cost. Wing is adjustable from 0-12 degrees, but the efficiency drop-off doesn't happen until higher angle of attacks.
Interesting. Gut feeling was they were a bit short for the job I thought they were supposed to do, but I didnt have the data to comment. Was fooled by the airfoil and twist on the plug in the picture.
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Old 09-14-2017, 03:48 PM   #64
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Hello Velox / Verus - Any updates on the development?
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Old 09-17-2017, 11:12 AM   #65
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Hello Velox / Verus - Any updates on the development?
Wing is in and looks great! We'll try to grab some photos here shortly, been slammed with work lately which is a great problem to have but photos/marketing suffers a bit.

We have ordered all the billet components after 3D printing all the points first. Pretty excited, we should have a prototype on the car ready for testing in the next few months.

Thanks,
Eric
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Old 09-17-2017, 12:03 PM   #66
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Can you expound on the difference between what you consider high down-force and what you're targeting with this wing. Thanks.
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Old 09-19-2017, 09:57 AM   #67
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Can you expound on the difference between what you consider high down-force and what you're targeting with this wing. Thanks.
This wing is targeted to be very efficient and make no more than 300 lbs at around 120 mph. The goal was a wing that provided efficient downforce that would not damage the trunk. We specifically targeted the strongest area of the trunk to mount the wing and also are reinforcing that area. Most guys who go to the track do not have a dedicated race car. Dedicated race cars can do chassis mounts where you can get serious with downforce levels as usability of the car can be limited. The wing is designed to be another piece to our kit and be able to be balanced with our front splitter, front endplates, and dive planes (depending on rear wing angle of attack). It is a system that is all designed to work together.

What I consider high downforce? Depends on the car/setup.
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Old 10-06-2017, 08:52 AM   #68
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Wing first article with 3D printed mounting installed below! Exciting! Expect more updates in another month or so .







Thanks,
Eric
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Old 10-06-2017, 11:57 AM   #69
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Wing first article with 3D printed mounting installed below! Exciting! Expect more updates in another month or so .







Thanks,
Eric
Just curious if there's going to be a non carbon fiber option, I'm planning on painting it and would hate to cover up the beautiful carbon fiber

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Old 10-06-2017, 02:40 PM   #70
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I'm liking the look of this thing a lot more than I ever intended to.
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