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Forum: Aerodynamics 02-20-2025, 09:32 PM
Replies: 4,276
Views: 1,420,098
Posted By freebeard
https://justacarguy.blogspot.com: Extraordinary...

https://justacarguy.blogspot.com: Extraordinary designer of automotive and everything else... Count De Sakhnoffsky. Emphasis on the LaBatt's streamliner...
Forum: Aerodynamics 02-20-2025, 11:45 AM
Replies: 4,276
Views: 1,420,098
Posted By aerohead
not sure

I believe that it's in one of the 'trailer' threads a few years back.
She's a 'beaut'!:thumbup:
Forum: Aerodynamics 01-27-2025, 10:59 AM
Replies: 3
Views: 334
Posted By aerohead
' Primer ' caution flags

1) @ 6:00, it would be better to have said that 'a turbulent boundary-layer', rather than 'turbulence' delays separation ( turbulence is a consequence of flow separation ).
2) @ 8:28, the 'visual'...
Forum: Aerodynamics 01-25-2025, 03:19 PM
Replies: 3
Views: 334
Posted By freebeard
Nor I, but that hasn't stopped me before. :) ...

Nor I, but that hasn't stopped me before. :)

I watched the first three minutes, and the last two before 'exit through the gift shop'. That's a weird website (MSN), no way to 1.5x the speed. Thumb...
Forum: Aerodynamics 01-25-2025, 10:39 AM
Replies: 4
Views: 299
Posted By ademonrower
Volvo 240 early series, headlight covers

The suggestion that someone on Ecomodder made that I should close off the openings around my headlights kept nagging at me, so I finally made headlight covers for better aerodynamics and headlight...
Forum: Aerodynamics 11-27-2024, 06:15 AM
Replies: 5
Views: 299
Posted By kach22i
Yea, I was going to post the same thing. ...

Yea, I was going to post the same thing.

Worked for me.

https://ecomodder.com/forum/showthread.php/roof-spoiler-pick-up-truck-cab-phase-1-a-19525.html...
Forum: Aerodynamics 11-06-2024, 01:32 AM
Replies: 1,435
Views: 203,606
Posted By freebeard
Ackerman not required. The wheelbase and track...

Ackerman not required. The wheelbase and track changes side-to-side.

No anti-intrusion bars on those single skinned doors. :)
Forum: Aerodynamics 11-03-2024, 10:35 PM
Replies: 1,435
Views: 203,606
Posted By freebeard
1950 Fageol TC CargoLiner by Louis J. Fageol:...

1950 Fageol TC CargoLiner by Louis J. Fageol: Built Once, Lost Forever (https://www.youtube.com/watch?v=Zg4tU3hRixg)

With no articulation, it has a farm wagon steering setup. The front bumper...
Forum: Aerodynamics 10-27-2024, 12:55 AM
Replies: 932
Views: 195,183
Posted By cRiPpLe_rOoStEr
Sounds like the box straight truck generated some...

Sounds like the box straight truck generated some vacuum which would render it easier to pull such an unaerodynamic trailer, as if it was catching the vacuum of another vehicle.
Forum: Aerodynamics 10-25-2024, 12:56 AM
Replies: 932
Views: 195,183
Posted By freebeard
Very cool. Thanks for sharing. What year? What...

Very cool. Thanks for sharing. What year? What airport?

I'm not getting the fold-up floor part. What is the width of the upper deck? It's not just the sides folding up? Are there wheelwells, or...
Forum: Aerodynamics 08-15-2024, 11:58 AM
Replies: 35
Views: 2,616
Posted By aerohead
' perfectly flat '

Walter Korff, Chief Aerodynamicist for Lockheed Aircraft Co., and designer of the Summer's Brother's 550-mph, GOLDENROD, was a proponent of 'convexity' in the wheel disc.
It IS a cheap way to...
Forum: Aerodynamics 08-12-2024, 10:26 AM
Replies: 35
Views: 2,616
Posted By aerohead
thickness

I did three layers of donated, refrigerated, aerospace-grade, biased-orientation, pre-preg CF-Epoxy in Reno, and it turned out less than a millimeter in thickness.
We constructed a plastic-faced,...
Forum: Aerodynamics 08-11-2024, 04:49 AM
Replies: 35
Views: 2,616
Posted By RBurke83
When I get home tonight I’ll look for my digital...

When I get home tonight I’ll look for my digital calipers but tbh I haven’t seen them in a while so not sure I’ll have an exact answer but the feel test I’d say more than 1mm and less than 3mm.
Forum: Aerodynamics 07-16-2024, 03:25 PM
Replies: 70
Views: 4,740
Posted By freebeard
I'd heard long nut on the stud with a short 12mm...

I'd heard long nut on the stud with a short 12mm bolt. I was suggesting a reducer.
Forum: Aerodynamics 07-15-2024, 01:32 PM
Replies: 37
Views: 1,757
Posted By freebeard
There's the answer to OP's question. Your...

There's the answer to OP's question.

Your diverters and air dams on cars must use vena contracta to limit the air going into the underbody.
Forum: Aerodynamics 07-15-2024, 10:28 AM
Replies: 37
Views: 1,757
Posted By aerohead
' bow wake '

1) I read a paper by the Office of Naval Affairs on aircraft carrier design.
The whole process is compromise between competing aspects of shipborne activities and contingencies.
2) Between the time...
Forum: Aerodynamics 07-11-2024, 10:58 AM
Replies: 37
Views: 1,757
Posted By aerohead
carrier design

* the 'length' of the boat is probably the most important, as, while
'at sea' it's subject to 'pitching', with the angle of attack of the oncoming air, varying continuously with the height and...
Forum: Aerodynamics 06-08-2024, 01:52 PM
Replies: 110
Views: 12,243
Posted By freebeard
Five fences is about right. :thumbup:

Five fences is about right. :thumbup:
Forum: Aerodynamics 05-08-2024, 05:37 PM
Replies: 16
Views: 1,009
Posted By Phase
Most wipers are in the low pressure zone behind...

Most wipers are in the low pressure zone behind the air intake where the hood and windshield meat do they don’t have any affect on the aero. I even removed my wipers. Made no difference in testing
Forum: Aerodynamics 05-05-2024, 12:14 PM
Replies: 1,435
Views: 203,606
Posted By freebeard
Odd, but optimal (for what it is):...

Odd, but optimal (for what it is):...
Forum: Aerodynamics 05-05-2024, 10:10 AM
Replies: 1,435
Views: 203,606
Posted By kach22i
Might be AI or Photoshop, but I like it, and the...

Might be AI or Photoshop, but I like it, and the dude scratching his head must think it's odd.

https://forums.pelicanparts.com/off-topic-discussions/391522-random-transportation-pictures-2741.html...
Forum: Aerodynamics 04-26-2024, 01:38 PM
Replies: 36
Views: 2,397
Posted By Logic
Quite so. Cant argue with all that. ...

Quite so. Cant argue with all that.

However:
The lay person has no cooking clue whatTF airflow looks like around a wing or cylinder etc-etc.
This is simply a clever way to plant the seed that...
Forum: Aerodynamics 01-25-2024, 09:27 PM
Replies: 2
Views: 669
Posted By Truckomaguy
Designed and printed these components that make...

Designed and printed these components that make up a partial or complete lower grill block for the 2nd generation Toyota Tacoma.

Made of several segments for ease of printing and the ability to do...
Forum: Aerodynamics 01-25-2024, 05:22 PM
Replies: 2
Views: 669
Posted By Truckomaguy
2nd Gen Tacoma Lower Grill Block

Designed and printed these components that make up a partial or complete lower grill block for the 2nd generation Toyota Tacoma.

Made of several segments for ease of printing and the ability to do...
Forum: Aerodynamics 01-23-2024, 03:19 PM
Replies: 13
Views: 1,285
Posted By Phase
So flat horizontal spoiler, low drag. Up spoiler,...

So flat horizontal spoiler, low drag. Up spoiler, more downforce
Showing results 1 to 25 of 86
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