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

[aerohead]

Here's what I have for the '49 Nash

PS : I GOOGLED the Nash's drag coefficient and found one source which gave Cd 0.43.The same source also gave 30-mpg capability for the inline six-powered car.

[redneck]

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Volkswagen ARVW

The “Aerodynamic Research Volkswagen” was conceived in the late 1970’s to develop the correlation between body shape and fuel consumption. This though wasn’t powered by some new-fangled petrol engine, far from it, sat in the back was a tweaked 2.4ltr, 6 cylinder, 175bhp diesel engine from a lorry. This was then covered in a streamlined aluminium and composite body with a drag coefficient that would make any modern racer jealous.


In 1980 it went out and claimed the fastest diesel powered vehicle record of 226mph while achieving 23.6mpg, you won’t see that in a Veyron. While out testing it also achieved 47mpg at 155mph!!!!!

https://www.youtube.com/watch?v=7CIldmiysqg

https://www.youtube.com/watch?v=zC4QaMdOK5w

>

[Magajgfha]

Any explanation for the tail fin shape?

[aerohead]

Originally Posted by Magajgfha

Any explanation for the tail fin shape?

Nothing published about it so far.I suspect that it was optimized for low roll moment (long and not tall),while maintaining whatever center of pressure target they were after to compensate for the geometric centroid attributed to the canopy.
At around 250-mph,you don't want a crosswind gust to push the nose around.

[freebeard]

A well-grounded suspicion at that. My first thought was that somebody backed it into a wall, but going back and looking again—it appears to be attachment points for a horizontal stabilizer. In the video in pre-development phase they were much smaller, and so probably sorely needed. Also the front wings are retracted/able.

No love for the 1-cylinder diesel reverse trike? It's all tailfin. The guy even says it couldn't be improved on today.
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[IMG] won't hot-link, you'll have to visit the page.
http://www.gizmag.com/rasa-hydrogen-fuel-cell-car-riversimple/41841/

Being built for full European type approval, the development of the Rasa was supported by a £2 million (US$2.85 million) grant from the Welsh government... the company will be running a public 12-month trial of a fleet of 20 Rasa prototypes. It is expected that the outcome of this on-going development will result in the launch of a full production model to market sometime in 2018.

A tiny catamaran body in the service of hydrogen as a fuel.

[NeilBlanchard]

This is an evolution of a design we discussed here a few years back, and I think the aerodynamics are greatly improved, but with a few problems still:









Don't get me started on the hydrogen fuel cell, but otherwise, there is a lot to like!

[freebeard]

Agreed. It's like an XL1 for die volks.

[kach22i]

Originally Posted by NeilBlanchard

This is an evolution of a design we discussed here a few years back, and I think the aerodynamics are greatly improved, but with a few problems still:

Wow, I think that I know the other car you are talking about. Huge influence on me, been doodling something similar for the past couple of years now. Not the only influence of course, but the direction is similar and getting a bit spooky.

Some other recent finds - some may be reposts.

The Craziest Twin-Engined Racing Cars Were Made By A Bus Company

Faegol is the name shared by two brothers, Frank and William, and a bus company.

[kach22i]

Toyota - EX7



Toyota - EX7

The EX-7 was a 2-seater concept car made by Toyota and shown during the 1970 Tokyo Motor Show. It was an experiment (hence 'EX') to see what a supercar based on the Toyota 7 (hence '-7') race car would be like.

[kach22i]

Sci/Tech ~ Pink Tentacle (2)






Sci/Tech ~ Pink Tentacle (2)