Interesting Aerodynamic Cars (Mike Vetter's ETV, also Avion)

[aerohead]

Equal drag:
https://ecomodder.com/forum/member-a...sugar-cube.jpg

[freebeard]

I was poking around in Ecomodder's innards, when I found this. It seems like it's worth a repost, since 2008: ecomodder.com/forum/showthread.php/gravity-racer-gallery-extreme-aerodynamics-1208.html#post69119

Some pics




From INTER-ACTION

That third page is excellent (note the progression across the top), but I flip out over the Aerocarene

[kach22i]

If not aerodynamic by today's standards, then at least it's beautiful.

Random TRANSPORTATION pictures - Page 2482 - Pelican Parts Forums

[aerohead]

Looking at the University of Michigan's 'NOVUM', you can see elements of:
* the 1906 Stanley Steamer LSR 'canoe', 1928 Rumpler closed-car limousine, and 1933 Mauboussin closed-car, enclosed cabin, enclosed-wheels, with almost no ground clearance ( Jaray 1922 ), embodied in the lower body.
* NOVUM's bubble canopy borrows from Paul Jaray's 'kombination' form roof of 1922.
* And NOVUM's photovoltaic array, a boat-tailed version of Jaray's 1922 ' kombination' form double- wing root, airfoil body.
* All the connection intersections blended together with Sighard Hoerner's fillets of 1951.
New dog, old tricks.
No new theory.

[freebeard]

kach22i -- "Corvair Testudo" FWIW

I wish the illustrations were larger than 800x1198, the text is hard to decipher. What might be the Mathis 300(?) is a lot like the contemporary Corbin Sparrow.

Based on the shape labeled 'Csp: 0,2' I did this for one of the gravity racer threads:



It also validates my old VW bus design:

[aerohead]

Originally Posted by freebeard

kach22i -- "Corvair Testudo" FWIW

I wish the illustrations were larger than 800x1198, the text is hard to decipher. What might be the Mathis 300(?) is a lot like the contemporary Corbin Sparrow.

Based on the shape labeled 'Csp: 0,2' I did this for one of the gravity racer threads:



It also validates my old VW bus design:

* Without a side view in true-length, it's hard to tell if there'd be separation issues over the top and down the rear pontoon fenders. They look kinda 'fast.'
* Considering the plan-view, if Elliott Gray Reid, of Stanford University was still with us, he might tell you that there's a 16% drag penalty from lack of boat-tailing those rear fenders, something he specifically tested for.
* The Mathis 'long-tail'( Cd 0.18 ) took advantage of this technology.

[freebeard]

Consider it a 'first draft'.

edit:
From the Pelican Parts thread, what's going on here?


http://forums.pelicanparts.com/off-t...l#post11344187

Maybe a space saver spare inside a donut shaped gas tank? What's the pipe that snakes it's way toward the dashboard?

[aerohead]

Originally Posted by freebeard

Consider it a 'first draft'.

edit:
From the Pelican Parts thread, what's going on here?


Random TRANSPORTATION pictures - Page 2482 - Pelican Parts Forums

Maybe a space saver spare inside a donut shaped gas tank? What's the pipe that snakes it's way toward the dashboard?

It should be the filler hose. The little one would be a vent, or to a charcoal cannister in the engine bay.
For the USA market they put it on the other side. Never understood that. 'Aerobics' for Porsche owners?

[freebeard]

So it is then. An inversion of the old Beetle spare tire/tank.


justacarguy.blogspot.com/2011/09/spare-tire-portable-gas-tank-must-be.html

[Piotrsko]

Originally Posted by freebeard

So it is then. An inversion of the old Beetle spare tire/tank.


justacarguy.blogspot.com/2011/09/spare-tire-portable-gas-tank-must-be.html

Hmm never have seen that. Those are stocker parts?