New and seeking aero advice for my "brick"

[kach22i]

Originally Posted by slowmover

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

[freebeard]

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

[kach22i]

Originally Posted by freebeard

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

[Piotrsko]

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

[gumby79]

Originally Posted by Piotrsko

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.