05-05-2018, 09:48 AM
|
#681 (permalink)
|
|
Master EcoModder
Join Date: Nov 2013
Location: Texas
Posts: 678
Thanks: 20
Thanked 146 Times in 130 Posts
|
I know that the optimum shape is dependent upon the operating speed through the air. For what speed is this template designed? 55 MPH, or the new 75 MPH?
|
|
|
|
|
The Following User Says Thank You to Angel And The Wolf For This Useful Post:
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
05-05-2018, 10:07 AM
|
#682 (permalink)
|
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
|
Quote:
Originally Posted by Angel And The Wolf
I know that the optimum shape is dependent upon the operating speed through the air. For what speed is this template designed? 55 MPH, or the new 75 MPH?
|
It's not a supersonic template, from what I understand covers 0-250 mph.
In our practical application that means from 20-30 mph to as fast as your car can go ( double the speed limit?). |
|
|
|
|
The Following User Says Thank You to kach22i For This Useful Post:
|
|
|
05-05-2018, 01:10 PM
|
#683 (permalink)
|
|
Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,879
Thanks: 23,955
Thanked 7,219 Times in 4,646 Posts
|
Mph
Quote:
Originally Posted by Angel And The Wolf
I know that the optimum shape is dependent upon the operating speed through the air. For what speed is this template designed? 55 MPH, or the new 75 MPH?
|
A full-sized car will have a full-turbulent boundary layer,constant Cd,from 20-mph,up to around 250-mph,as mentioned.Above that,compressibility effects come into play.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
|
|
|
|
|
The Following 2 Users Say Thank You to aerohead For This Useful Post:
|
|
|
05-05-2018, 06:12 PM
|
#684 (permalink)
|
|
Master EcoModder
Join Date: Nov 2013
Location: Texas
Posts: 678
Thanks: 20
Thanked 146 Times in 130 Posts
|
OK, thanks
|
|
|
|
|
05-05-2018, 07:51 PM
|
#685 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,629
Thanks: 7,759
Thanked 8,572 Times in 7,058 Posts
|
Note he said full sized. That applies down to ~1/4 or 1/5th scale in air. So it includes velocipedes. Up to anything that will fit a traffic lane.
http://ecomodder.com/forum/showthrea...6-a-32673.html
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
."We're deeply sorry." -- Pfizer
|
|
|
|
|
05-06-2018, 06:53 AM
|
#686 (permalink)
|
|
Master EcoModder
Join Date: Nov 2013
Location: Texas
Posts: 678
Thanks: 20
Thanked 146 Times in 130 Posts
|
Has anyone built a full sized two passenger or more version of this shape, and driven it?
|
|
|
|
|
The Following User Says Thank You to Angel And The Wolf For This Useful Post:
|
|
|
05-06-2018, 10:16 AM
|
#687 (permalink)
|
|
Permanent Lurker
Join Date: May 2011
Location: Czechoslovakia (sort of), Europe
Posts: 348
Dáčenka - '10 Dacia / Renault Logan MCV 1.5 dCi (X90 k9k) 90 day: 47.08 mpg (US)
Thanks: 129
Thanked 198 Times in 92 Posts
|
I was wondering that too.
IIRC there was tadpole trike built by Old Mechanic, but he left forum before it was roadworthy. When I get to some computer, i will try to provide a link.
|
|
|
|
|
The Following User Says Thank You to seifrob For This Useful Post:
|
|
|
05-06-2018, 10:52 AM
|
#688 (permalink)
|
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 459 Times in 327 Posts
|
A shape like that template was the inspiration for many early experiments in streamlined road-race cars. They got an evil reputation for tricky handling at high speed.
|
|
|
|
|
The Following User Says Thank You to Bicycle Bob For This Useful Post:
|
|
|
05-06-2018, 10:57 AM
|
#689 (permalink)
|
|
Cyborg ECU
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
|
Quote:
Originally Posted by seifrob
I was wondering that too.
IIRC there was tadpole trike built by Old Mechanic, but he left forum before it was roadworthy. When I get to some computer, i will try to provide a link.
|
Still bums me out that he left the forum, upset about some political crap in the lounge subforum, IIRC. Here is the link: http://ecomodder.com/forum/showthrea...tml#post377860
I miss that guy.
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
|
|
|
|
|
The Following 3 Users Say Thank You to California98Civic For This Useful Post:
|
|
|
05-06-2018, 03:40 PM
|
#690 (permalink)
|
|
Permanent Lurker
Join Date: May 2011
Location: Czechoslovakia (sort of), Europe
Posts: 348
Dáčenka - '10 Dacia / Renault Logan MCV 1.5 dCi (X90 k9k) 90 day: 47.08 mpg (US)
Thanks: 129
Thanked 198 Times in 92 Posts
|
Quote:
Originally Posted by California98Civic
|
I feel exactly the same. Time by time I review old threads and everytime I find some of his posts I enjoy his kind words and experience, wondering how is he, what he does.
|
|
|
|
|
