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Old 07-14-2012, 02:28 PM   #431 (permalink)
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factory driver

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Originally Posted by seifrob View Post
this is short advertisment movie for tatra 603 filmed in early 60's. Slightly off topic, but, being patriot and Tatra fan, I couldnīt help myself.

No movie tricks, Tatra was driven by factory test driver.

Only in Czech, sorry :-(



P.S. For you without patience: .

Btw: the sign means "godspeed" ;-]
The film reminds me of my commute to work! Texas housewives drive this way.

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Old 07-14-2012, 02:41 PM   #432 (permalink)
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thoughts

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Originally Posted by divedaddy03 View Post
Has anybody been watching this project?

What are your thoughts?

It seems like the concept is a step backwards with respect to mass and collision safety.
The body-on-frame would add weight and anyone struck by this vehicle would be at greater risk for injury or death,as there would be compromises to progressive deformation and kinetic energy dissipation upon impact.
The additional mass would frustrate urban stop and go mpg potential.
The 'system' might also require a higher center of gravity.
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Old 07-15-2012, 03:49 PM   #433 (permalink)
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I hear what you're saying.

So far they are getting 100+ mpg with an ICE...!! Wow, huh?

As far as safety in your mind, is there a better way to build a safe vehicle that's easily put together by a DIYer?

Take a look at their YouTube channel (WIKISPEED crowd funding video - short - YouTube) and build log (WIKISPEED - WIKISPEED), it's interesting what they're doing.

I'm not saying it's the best idea but it's pretty darn cool.

Wayne
SC



Quote:
Originally Posted by aerohead View Post
It seems like the concept is a step backwards with respect to mass and collision safety.
The body-on-frame would add weight and anyone struck by this vehicle would be at greater risk for injury or death,as there would be compromises to progressive deformation and kinetic energy dissipation upon impact.
The additional mass would frustrate urban stop and go mpg potential.
The 'system' might also require a higher center of gravity.
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Old 07-15-2012, 07:46 PM   #434 (permalink)
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Quote:
Originally Posted by divedaddy03 View Post
Take a look at their YouTube channel (WIKISPEED crowd funding video - short - YouTube) and build log (WIKISPEED - WIKISPEED)
I don't remember seeing this before, thank you for posting it.

I'm wondering what kind of turn radius they are getting, but really like the cab-forward aspect.

I've searched for some true side and front views, but so far have found little.

WIKISPEED - Safe
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Old 07-15-2012, 08:55 PM   #435 (permalink)
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[QUOTE=Cd;316537]


Looks like the Probe IV would have lower drag going backward, if the back er the front were rounded off it wound match the template.

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Old 07-16-2012, 07:23 PM   #436 (permalink)
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better

Quote:
Originally Posted by divedaddy03 View Post
I hear what you're saying.

So far they are getting 100+ mpg with an ICE...!! Wow, huh?

As far as safety in your mind, is there a better way to build a safe vehicle that's easily put together by a DIYer?

Take a look at their YouTube channel (WIKISPEED crowd funding video - short - YouTube) and build log (WIKISPEED - WIKISPEED), it's interesting what they're doing.

I'm not saying it's the best idea but it's pretty darn cool.

Wayne
SC
It's a tough call.There is very little actual engineering data from which make any judgement.
The first 'race' car which they show I can see getting 100 mpg,if that's with the EPA 'highway' cycle,averaging 49.6 mph. It's got the mass of East Germany's Trabant,and GM's Ultralite so that's good.
The 'race' car,if they'll put the roof on it and roll up the windows, with it's narrow 1-person greenhouse,and small frontal area should be able to squeak by aerodynamically.
I don't believe any of the other body variants will be able to achieve the mpg mentioned.
The chassis remains 'scary' to me.Sure,the occupant of the car may survive a collision in the laboratory under extremely precise collision geometries,but after that I wouldn't know.
And I would not want to be struck by such a vehicle.
Need more data.And those tests are extremely expensive.Many tens of thousands of dollars per crash car.
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Old 07-16-2012, 09:38 PM   #437 (permalink)
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The WikiSpeed car never mentions anything about how it makes 100MPG. The aero is nothing special.
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Old 07-21-2012, 10:15 PM   #438 (permalink)
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VW Auto 2000

In another thread, aerohead referred to this car, and I did not find it in a ecomodder search. I found it on the web, and here is a pic (below). And this site claims it had Cd 0.26.
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Old 08-10-2012, 03:11 PM   #439 (permalink)
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1923 Benz Tropfenwagen (Rumpler patent, Porsche co-design) by kitchener.lord, on Flickr


1935 Auto Union Rekordwagen Typ Lucca. Hans Stuck by kitchener.lord, on Flickr


1921 Rumpler Tropfenwagen chassis by kitchener.lord, on Flickr
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Old 08-10-2012, 03:55 PM   #440 (permalink)
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Cool photos Sven. Those fairings right behind the front tires are exactly what I had in mind for the Aero RV, or the lower half anyway.

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