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Old 11-10-2018, 09:39 AM   #41 (permalink)
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Quote:
Originally Posted by slowmover View Post

As to the rest, ORBYWAN modified a Class C motorhome on these pages a while back. Read all those threads. (Great stuff above in this thread).
Found the tread:
Aero RV (custom boat tail for '95 Ford E-350 Class C motorhome)
https://ecomodder.com/forum/showthre...d-e-18151.html





While looking for that thread I found this thread.

Aerodynamic Suburban or GM SUV (92-99)

https://ecomodder.com/forum/showthre...a-33833-5.html

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Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html

Last edited by kach22i; 11-10-2018 at 09:54 AM..
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Old 11-10-2018, 03:24 PM   #42 (permalink)
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Okay, so it's the white van. Maybe I knew that.

The sketch I posted at Permalink #11 becomes more important.



The features are clear plastic pilasters at the frond corner to soften the radius and form a bellmouth to feed the cooling system, the swan-neck mirrors and the Turnpike Cruiser-style rear skirts. Also look at the white Vanagon with the box cavity/boat tail:


https://ecomodder.com/forum/showthre...tml#post523592
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Old 11-11-2018, 09:52 AM   #43 (permalink)
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Quote:
Originally Posted by freebeard View Post
Okay, so it's the white van. Maybe I knew that.
My apologies, and perhaps a thank you to all on this, I never put the parts together before.

The point being, load that trailer nose to nose with similarly height vehicles in tandem so the drafting aspect of it all acts in unison as one long shape, and the ramp trailer is an open body teardrop trailer.

Pure genius, so obvious, and I missed it the first couple times around.
http://www.jcs-group.com/racin/guide/draft.html

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George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html

Last edited by kach22i; 11-11-2018 at 10:00 AM..
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Old 11-12-2018, 11:17 AM   #44 (permalink)
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I thought spacing was 1.5 times the height(width) for a laminar effect, or at least according to whatshisname, head engineer at skunk works.

He "wrote a paper on it".

I Must be stoopid today
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Old 02-24-2019, 04:31 AM   #45 (permalink)
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Quote:
Originally Posted by Piotrsko View Post
I thought spacing was 1.5 times the height(width) for a laminar effect, or at least according to whatshisname, head engineer at skunk works.

He "wrote a paper on it".

I Must be stoopid today
cord is 2.5 height/width . We only see 1/2 the height. I have a pic of a UPS truck demonstrating this some were. The water mist kicked off the rear dolly(1 trailer+ 1 dolly)shows the wake as the template dose 2.5x the thickness of the full airfoil( 2x truck height x2.5 ). on short things the width is the larger factor and is faster to recover as there are 2 sides merging air as opposed to 1 top no bottom.

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