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Search took 0.40 seconds. Search: Posts Made By: sgtlethargic
Forum: Aerodynamics 02-06-2024, 12:53 PM
Replies: 4,211
Views: 1,320,771
Posted By freebeard
Jocko Johnson's streamliners came between porting...

Jocko Johnson's streamliners came between porting heads and his wooden sculptures.
...
Forum: Aerodynamics 02-01-2024, 10:57 AM
Replies: 4,211
Views: 1,320,771
Posted By aerohead
' HAMMERHEAD aero...........'

https://www.sungroper.asn.au/gallery/sungroper-recent.html
All I could find is a link to the September, 2007, World Solar Challenge, entrant, associated with the 'Sungroper' solar racer, from which...
Forum: Aerodynamics 09-23-2023, 02:52 PM
Replies: 4,211
Views: 1,320,771
Posted By freebeard
Speaking of Falcons, in Argentina they couldn't...

Speaking of Falcons, in Argentina they couldn't chop the top or section the body, but the rules didn't say you couldn't narrow it.
...
Forum: Fossil Fuel Free 08-15-2023, 11:39 PM
Replies: 6
Views: 492
Posted By JSH
Range isn't that accurate an indicator of battery...

Range isn't that accurate an indicator of battery health. With the same car one person may go 80 miles and another only 40 with the same battery depending on their climate, route, and driving...
Forum: Aerodynamics 11-03-2020, 09:19 AM
Replies: 4,211
Views: 1,320,771
Posted By samwichse
A 1969 Falcon racecar vs the 1962 Falcon is was...

A 1969 Falcon racecar vs the 1962 Falcon is was based on. Loving that kammback.

https://ecomodder.com/forum/attachment.php?attachmentid=29498&stc=1&d=1604413123
...
Forum: The Lounge 10-30-2020, 03:25 PM
Replies: 732
Views: 38,026
Posted By RedDevil
A couple of years ago someone over here died in...

A couple of years ago someone over here died in similar fashion, complaining of not being able to breathe with a cop kneeling on his neck. Though he too had used some drugs, the cause of death was...
Forum: Aerodynamics 10-27-2020, 02:54 PM
Replies: 233
Views: 19,553
Posted By jakobnev
The line represents 100mpg. If you have a...

The line represents 100mpg.

If you have a car that weighs 1000kg then your max drag area is 0.306m².

If the car is small with a frontal area 1.5m², then your max Cd is 0.204.
Forum: Aerodynamics 10-22-2020, 01:55 PM
Replies: 4,211
Views: 1,320,771
Posted By Bicycle Bob
Around 1950, uncovered wire wheels were almost...

Around 1950, uncovered wire wheels were almost universal on performance cars, and the rare attempts at streamlining were creating huge problems with lift reducing the traction while not even...
Forum: Aerodynamics 10-21-2020, 11:07 AM
Replies: 20
Views: 2,064
Posted By aerohead
( template ) cross-section

If you'll GOOGLE
Z2FU9Sm2qLY
it will take you to the You-Tube video of the 'template' at DARKO Wind Tunnel.
Both parking lot and wind tunnel footage will show the cross-section.
At 1:1-scale,...
Forum: Aerodynamics 10-17-2020, 09:38 AM
Replies: 77
Views: 4,953
Posted By MetroMPG
Thank you! Everyone who wants to talk...

Thank you!

Everyone who wants to talk politics/religion/etc... HEAD ON OVER TO SLICKDEALS! I'll meet you there!
Forum: Aerodynamics 10-14-2020, 11:23 AM
Replies: 4,211
Views: 1,320,771
Posted By freebeard
https://1.bp.blogspot.com/-J47wvGqdxdc/X4aKZ_oP6BI...

https://1.bp.blogspot.com/-J47wvGqdxdc/X4aKZ_oP6BI/AAAAAAAGKs8/0UUjZ8_AmZQVcNWjh74fk6-paYr6fZ6KACLcBGAsYHQ/w740-h944/uy6g8o7y.JPG
...
Forum: EcoModding Central 10-13-2020, 07:49 PM
Replies: 3
Views: 634
Posted By M_a_t_t
Correct. Auto stop features are becoming more...

Correct. Auto stop features are becoming more prevalent on new cars. I'm 95% sure its to save fuel. I don't see how it would benefit anything else.
Forum: Aerodynamics 10-11-2020, 03:48 PM
Replies: 10
Views: 1,189
Posted By JulianEdgar
Professional level CFD is used by all major car...

Professional level CFD is used by all major car manufacturers, solar car designers, etc, to develop shapes. However, from what I understand, there is a major difference between CFD of the sort...
Forum: Aerodynamics 10-10-2020, 04:27 PM
Replies: 10
Views: 1,047
Posted By JulianEdgar
https://i.postimg.cc/q77dSPf3/IMG-0891.jpg ...

https://i.postimg.cc/q77dSPf3/IMG-0891.jpg

and for a historical context:

https://i.postimg.cc/VvqTdgQw/IMG-0902.jpg
Forum: Aerodynamics 10-09-2020, 10:09 PM
Replies: 233
Views: 19,553
Posted By Vman455
The caption with the photo on Hucho's website...

The caption with the photo on Hucho's website identifies it as "1936 Adler Autobahn"; no drag coefficient is given. That photo is also reproduced in the book, on page 25 of the 4th edition, simply as...
Forum: Aerodynamics 10-03-2020, 01:55 AM
Replies: 233
Views: 19,553
Posted By JulianEdgar
I think M_a_t_t means this one: ...

I think M_a_t_t means this one:

https://i.postimg.cc/pTvZHDYY/IMG-3473.jpg

https://i.postimg.cc/FKLWmFtm/IMG-3478.jpg
Forum: Aerodynamics 09-20-2016, 08:45 PM
Replies: 4,211
Views: 1,320,771
Posted By freebeard
Possibly the world's most aerodynamic 1924...

Possibly the world's most aerodynamic 1924 Oldsmobile?

https://3.bp.blogspot.com/-msetYSNNQ4k/V9_6zgGOu4I/AAAAAAAEZ_g/kPAg_vUw8rYYq8_5TkeqPAFPPrqNWwR1wCLcB/s1600/Farm%2BFind%2BAustralia%2B2.jpg...
Forum: Aerodynamics 09-02-2016, 05:22 PM
Replies: 7
Views: 2,124
Posted By aerohead
rear feature

One thing to keep in mind about the reported drag coefficients,is the velocity and Reynolds number in which they were measured. Driving speed for the Solar GT was around 35-mph,which might have it in...
Forum: Aerodynamics 05-21-2015, 02:12 PM
Replies: 4,211
Views: 1,320,771
Posted By freebeard
Then again, you might not. :)

Then again, you might not. :)
Forum: EcoModding Central 12-19-2014, 05:46 PM
Replies: 120
Views: 30,602
Posted By aerohead
contradict

*The issue with radii would need a historical context.
*A 1960s car,without modification, would not qualify for Hucho's (or other's) caveat,that a mid-1980's production car would already have enough...
Forum: Aerodynamics 10-21-2013, 05:08 PM
Replies: 5
Views: 1,849
Posted By aerohead
source

Texas Tech published the table in a SAE Paper they presented in 1988 after scale and full-scale testing.
Forum: Aerodynamics 10-21-2013, 10:16 AM
Replies: 5
Views: 1,849
Posted By jjackstone
Perhaps you should read the following posts and...

Perhaps you should read the following posts and see if you can ferret out the information....
Forum: Aerodynamics 10-20-2013, 08:37 PM
Replies: 5
Views: 1,849
Posted By Sporty Modder
This might help ...

This might help
http://i1240.photobucket.com/albums/gg490/4x4lover4499/attachment_zps01b6e208.jpg
Half the drag reduction to get mpg percentage.
Forum: Aerodynamics 03-02-2013, 02:55 PM
Replies: 776
Views: 284,447
Posted By aerohead
Aerodynamic Streamlining Template Gen-II

This Generation-II 'Template' was 'built' from a different L/D= 2.5 streamline body of revolution.I've identified it's source within the image.
*As a 'free-air' body,it would have Cd 0.04
*As a...
Forum: Aerodynamics 03-02-2013, 03:18 AM
Replies: 188
Views: 251,757
Posted By Shortie771
Thanks for the feedback. I am using IE, not that...

Thanks for the feedback. I am using IE, not that I can't install another browser; I have been using it my whole life and have not felt up for the frustration of learning a new browser.

I do have...
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