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-   -   A Brief Illustrated History Of Automotive Aerodynamics – Part1 (https://ecomodder.com/forum/showthread.php/brief-illustrated-history-automotive-aerodynamics-part1-12296.html)

cfg83 02-14-2010 11:38 PM
A Brief Illustrated History Of Automotive Aerodynamics – Part1
 
Hello -

Here's an article I am sure you will enjoy :

A Brief Illustrated History Of Automotive Aerodynamics – Part1 | The Truth About Cars
http://images.thetruthaboutcars.com/...05-527x349.jpg
Quote:
The T77 was measured to have a Cd of .212, a number that was not broken by a production car until GM’s EV-1 of 1995, which measured at .195. A remarkable achievement, the long-tailed T77 was powered by a rear air-cooled V8, and began a long series of Tatras until the 1980’s along similar lines.
CarloSW2

MechEngVT 02-15-2010 07:23 AM
I came on here this morning to post that very link...beat me to it!

MetroMPG 02-15-2010 12:14 PM
You know you're an EcoModder when you read this line from the article's intro....

Quote:
We’ve finally arrived at the place where a highly aerodynamic car like the Prius is mainstream.
...and you fundamentally disagree with the notion that the Prius is "highly aerodynamic."

aerohead 02-15-2010 05:27 PM
re-tested = higher Cd
 
Quote:
Originally Posted by cfg83 (Post 161129)
I don't have the source with me ( I'll get it ),but the Tatra was re-tested in a modern full-scale wind tunnel and it's Cd did not approach the published Cd,and by a large margin.

cfg83 02-15-2010 06:18 PM
aerohead -

Quote:
Originally Posted by aerohead (Post 161241)
I don't have the source with me ( I'll get it ),but the Tatra was re-tested in a modern full-scale wind tunnel and it's Cd did not approach the published Cd,and by a large margin.
Yes, thanks, I remember that too. That was posted long time ago in a thread far far away ... I'll quote it if I find it.

CarloSW2

cfg83 02-15-2010 06:30 PM
aerohead -

Ha ha, I think it was you back on 11/14/2009 :

Quote:
Originally Posted by aerohead (Post 139519)
Is Cd 0.25 a hard number? Reason I ask,is that Tremulis estimated the Tatra @ Cd 0.36.He's the kinda person who'd know the actual value.Just curious.
CarloSW2

cfg83 02-15-2010 06:32 PM
MechEngVT -

Quote:
Originally Posted by MechEngVT (Post 161160)
I came on here this morning to post that very link...beat me to it!
I'll make you a deal. You can post part 2!

CarloSW2

MechEngVT 02-16-2010 06:51 AM
Part 2:

A Brief Illustrated History Of Automotive Aerodynamics – Part 2 | The Truth About Cars

Thanks, cfg83; I read it yesterday before leaving work. I didn't bother to check back here because I knew it had been out for a bit (I have TTAC on RSS) and figured someone will have posted it.

Nevyn 02-16-2010 08:44 AM
Thanks for the links - I'm enjoying it a lot!

cfg83 02-16-2010 12:29 PM
MechEngVT -

http://images.thetruthaboutcars.com/...bonneville.jpg

Now that's my kinda Studebaker!

CarloSW2


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