12-29-2012, 10:05 AM
|
#471 (permalink)
|
|
Master EcoModder
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,907
Thanks: 3,475
Thanked 2,950 Times in 1,844 Posts
|
Here it is:
It apparently has a lift problem.
|
|
|
|
|
The Following 2 Users Say Thank You to NeilBlanchard For This Useful Post:
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
01-06-2013, 06:27 AM
|
#472 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,493
Thanks: 8,059
Thanked 8,859 Times in 7,313 Posts
|
Frank Lee -- What's not to like about the train? Those people in the interior shot look pretty calm considering they riding a 300mph bowling ball on an unmodified railroad track.
I'm starting to see a theme in your profile pictures.
|
|
|
|
|
01-06-2013, 07:31 AM
|
#473 (permalink)
|
|
(:
Join Date: Jan 2008
Location: up north
Posts: 12,762
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
|
Quote:
|
I'm starting to see a theme in your profile pictures.
|
Happy happy joy joy? |
|
|
|
|
01-06-2013, 02:54 PM
|
#474 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,493
Thanks: 8,059
Thanked 8,859 Times in 7,313 Posts
|
Um, yeah; that's it. 
I always imagine you with the pointy hat.
NeilBlanchard -- No lift problem here:
Last edited by freebeard; 01-06-2013 at 03:00 PM..
Reason: added pic
|
|
|
|
|
The Following 2 Users Say Thank You to freebeard For This Useful Post:
|
|
|
01-06-2013, 07:49 PM
|
#475 (permalink)
|
|
Master EcoModder
Join Date: Jul 2008
Location: Silly-Con Valley
Posts: 1,479
Thanks: 201
Thanked 262 Times in 199 Posts
|
No lift problem, but quite a bit of drag.  Less drag from tunnels than from wings, but still some.
-soD |
|
|
|
|
01-07-2013, 05:31 AM
|
#476 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,493
Thanks: 8,059
Thanked 8,859 Times in 7,313 Posts
|
Quote:
|
Less drag from tunnels than from wings, but still some.
|
Can you provide a citation? I'm interested.
I found some additional material on that car. It was all about negative lift, not low drag.
It was built in 1977, but the drawing is dated 1967. It appears there are one front fender and two rear fenders that ride with the wheels.
|
|
|
|
|
The Following 2 Users Say Thank You to freebeard For This Useful Post:
|
|
|
01-07-2013, 09:40 AM
|
#477 (permalink)
|
|
Master EcoModder
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,907
Thanks: 3,475
Thanked 2,950 Times in 1,844 Posts
|
There appear to be two inverted airfoil shapes and they are angled down - so they would probably add drag.
|
|
|
|
|
01-07-2013, 05:43 PM
|
#478 (permalink)
|
|
Master EcoModder
Join Date: Jul 2008
Location: Silly-Con Valley
Posts: 1,479
Thanks: 201
Thanked 262 Times in 199 Posts
|
Sorry, no citation for you. However, similar cars like the Porsche 956 (which seems to have been the first of their "tunnel cars") had a cD of over 0.5, which is hardly good from our perspective. The cDA was lower than would have been seen by a conventional winged car making the same downforce, but it still wasn't exactly great.
-soD
|
|
|
|
|
01-08-2013, 07:36 PM
|
#479 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,493
Thanks: 8,059
Thanked 8,859 Times in 7,313 Posts
|
Wow, Colani designed the Porsche 959.
Possibly the least radical thing he ever did but that explains those rear fender air scoops. Apparently Porsche added the lower front scoops at the last minute, which explains the mismatch. That makes it an "interesting aerodynamic car". |
|
|
|
|
01-08-2013, 08:34 PM
|
#480 (permalink)
|
|
Master EcoModder
Join Date: Jul 2008
Location: Silly-Con Valley
Posts: 1,479
Thanks: 201
Thanked 262 Times in 199 Posts
|
Interesting how that information is missing from the English version of Colani's bio. And from the English version of the 959 page.
I'll have to dig back into "Excellence Was Expected" to see if Ludwigsen mentions Colani at all.
-soD
|
|
|
|
|
