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

[kach22i]

https://www.pinterest.com/pin/466826317610396591/?nic=1


https://www.roadandtrack.com/car-cul...-2013/?slide=9


1992 Chevy Express Concept turbine engine
https://www.roadandtrack.com/car-cul...2013/?slide=12


https://www.thetruthaboutcars.com/20...e-car-program/

It shouldn’t surprise us that GM dumped a bunch of money into an idea or technology, only to abandon that investment – see also Wankel rotary, Fiat, Hughes, et al. ...........

[freebeard]

I like the templatey goodness more than the Chevy Express, except for ingress/egress although I think the huge Chevy doors would be hard to close by hand.

It looks like anti-face recognition dark glasses are catching on.

Bless their hearts, they tried to get the loft line right:


Just A Car Guy: wow, they really went and did a cool job with this bus decorated for the Coronation of King George VI and Queen Elizabeth (the Queen Mother), 1937

They artfully placed vortex generators all along the square edges.
_______________

edit:
I've been thinking.

Instead of a 50/50 morph with the Volkhart-Sagitta how about V-H V2 above the middle of the wheelwells and Aston Martin Valyrie below?

https://www.thedrive.com/news/28637/...urgring-record

I wonder how close I could get with my 1958 Beetle body. A wheelbase extension and four new pontoon fenders?

2nd edit:
The extension that moves the front axle-line forward, instead of welded tubing as is the norm, could be a monocoque box (similar to the Porsche Carrera GT) in aluminum or basalt fiber:

https://i.pinimg.com/originals/f9/dc...5cd933554a.jpg

3rd edit:
The too-fast Beetle body would be boxed in like another favorite car, the the Golf GTI w-12 650. This would preserve the cooling air if it's not electric:

So that's four cars rolled into one a fifth?

[kach22i]

Originally Posted by freebeard

I like the templatey goodness more than the Chevy Express........

It would be interesting to find out if the in profile template conforming but somewhat boxy Chevy Express outperforms the Fuldamobil Cd wise.

I'm sure that the curves and tangent angles of the Fuldamobil are too aggressive, but we have seen cars like the GM Impact (EV1) and aircraft canopies result in some impressively low Cd's.

http://oldconceptcars.com/1930-2004/...s-impact-1990/

Late in 1996 General Motors, the biggest of America’s Big Three car makers, put the EV1, its first electric vehicle, into production. This iniative sprang from GM’s Impact concept car that was unveiled in 1990.

NOTE: I plan to insert a 3D 3/4 rear view of the AeroTemplate as soon as I can find it.

EDIT:
https://ecomodder.com/forum/showthre...c-9287-52.html

Originally Posted by freebeard

Here's the picture I did, that popped up in a thread I was reading:

Freebeard, where is the rear 3/4 view located?

EDIT-2:
Found one version of the AeroTemplate in 3D.

https://ecomodder.com/forum/showthre...c-9287-56.html

[freebeard]

Freebeard, where is the rear 3/4 view located?

???? I don't think there was one.

Ross Lovegrove combined the Template and Morelli:

[Piotrsko]

Why is that a Gottingen style airfoil? Those are draggy as a boat anchor.

[freebeard]

https://duckduckgo.com/?q=Gottingen+...airfoil&ia=web

It would represent a Gottingen wingtip in ground effect. See Morelli.

My version of The Template in 3D:

[freebeard]

I couldn't find an existing thread in Fossil Fuel Free, so I'll drop this here:


https://newatlas.com/uniti-one-street-video/55659/


http://autoworld.com.my/news/2018/02...uto-expo-2018/

The fineness ratio sucks, so they promote the turning circle.

[RedDevil]

Which episode of Star Wars did that come from?

[kach22i]

Originally Posted by freebeard

[IMG]
edit:
I've been thinking.

Instead of a 50/50 morph with the Volkhart-Sagitta how about V-H V2 above the middle of the wheelwells and Aston Martin Valyrie below?

I did not respond because I could not visualize what you had in mind. Is there any way you can work up a sketch or two?

On my own passing thoughts regarding which is better, the Fuldamobil approach or GM Express; I sort of found a partial explanation Aerohead once gave that said the AeroTemplate works best when the car is wider than it is tall.

Assuming likewise: the tall and narrow shapes benefit most when tapering of the sides conform to AeroTemplate.

Meaning: Compare the GM Express to the AeroTemplate as we usually do - in profile/side view. And compare the Fuldamobil to the AeroTemplate in plan view to determine it's useful conformity.

Anyone is free to correct me or extend their own interpretation on this matter.

The reason for the two different uses of AeroTemplate in plan and profile/side views is the air pressure variables, and not attached flow characteristic that can often be scaled down versions of the AeroTemplate.

It is the air pressure differentials and resulting vortexes than make scaling down the AeroTemplate less effective. This is why the template goes down to the ground and is not applied to separate parts and pieces.

And now for an above average aerodynamic car for it's day.

Swedish Aircraft Company: From wings to wheels - SaabWorld

In 1946, Saab aircraft engineer Gunnar Ljungström, designer Sixten Sason and a staff of 14 craftsmen hand-built prototype 92.001, also known as the UrSaab – a sleekly aerodynamic car that reflected its aircraft heritage; its unusual profile closely resembled the cross-section of an airplane wing.

The first four Saab prototype cars were unveiled to the world in 1947. Decades before the technology would come into vogue, Saab’s first automotive entries featured front-wheel-drive and transverse-mounted engines. Saab was one of the few cars of the 1940s to utilize wind tunnel testing, achieving an air resistance coefficient of only 0.30 Cd, a respectable figure even today.

[freebeard]

Originally Posted by RedDevil

Which episode of Star Wars did that come from?

I thought it was the pedal car version of the Tesla semi.

kach22i — In theory yes. I bought a $4 second-hand copy of Photoshop Elements that runs on my $102.75 laptop. We'll see how my day goes.