Random Aerodynamic Oddity of the Day Thread

[kach22i]

Figure 8
The rationale for the Jaguar D-type
https://the-contact-patch.com/book/r...dynamic-forces

[kach22i]

The Time Tunnel - An Historical Survey of Automotive Aerodynamics
Karl E. Ludvigsen
https://www.jstor.org/stable/44717938

If you Google "images" of the above title some cool pictures come up- some are odd.

[kach22i]

Streamlining vehicles 1945–1965 a historical review☆
Ralf J.F.Kieselbach
https://www.sciencedirect.com/scienc...67610586900772

[kach22i]

https://citroenvie.com/proof-that-be...-the-sleek-ds/

While researchers including Kamm found that abruptly cutting off the tail resulted in minimal increase in drag, knowing that the ideal shape to minimize drag is a teardrop, Bertoni was obsessed with achieving that while still incorporating practicality in design. (As these evolutionary examples of the Traction Avant morphing into the eventual DS shape 20 years later illustrate.)

[Bicycle Bob]

Originally Posted by kach22i

Figure 8
The rationale for the Jaguar D-type
https://the-contact-patch.com/book/r...dynamic-forces

Mike Costin did a lot of work to streamline British racing cars in the 50s, but he never managed to see the wheels as a given, to be treated carefully. He just made a shape that could contain them, and cut holes for clearance. The resulting rounded sides were beautiful, but made awkward wheel wells.

[freebeard]

I like the triangular shark-body section of the ME-262. The lowered 'equator' directs air over the top but the lack of upward-facing normals limits the lift. ....driving sideways.

Jaray and Bertoni, maybe the Porsche Type 64.

I had a room mate in college that drove a bug-eyed Sprite, so I can relate to this:

The Ultimate JDM Powered Sprite - Driving The Craziest, Most Incredible Austin Healey Ever

Straight cut gears and a 7,800 RPM four with no air cleaners sounds great, but the top needs to be lined with aerogel or something to cut the reverberations.

There's an interesting contrast between the finish on the pedal cluster and brake lines vs the top and the faux patina.

[freebeard]

Just A Car Guy: I learned that Cappiello DID some advertising posters for vehicles

Less front legroom than a VW Beetle, but I'd like to see a street rodded version. Maybe with a boat tailed roadster body and BMW i3 wheels and tires.

[redneck]

Originally Posted by freebeard

Just A Car Guy: I learned that Cappiello DID some advertising posters for vehicles

Less front legroom than a VW Beetle, but I'd like to see a street rodded version. Maybe with a boat tailed roadster body and BMW i3 wheels and tires.

Cool... 😎

More pictures here.

Cyklon Maschinen- und Automobilfabrik


>

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[beate]

Originally Posted by Bicycle Bob

I don't think the Go-One is "close." The front wheel openings could be done far better, and the windshield is a disaster for daily use. Plus, you won't be getting much exercise sitting in that greenhouse on a nice day.

You can easily take off the side windows, and You can easily remove the entire canopy. And You will do that voluntarily.

And yes, the front wheel openings can and should have been improved.

On the other hand: the GoOne 3 has never been intended to be a racing machine. It is a good looking cruiser.

But no, the windshield is not a disaster for daily use. You will need a fan to keep it clean during the colder days (standard in the last production years), You might have some trouble with rain drops - but this is the same trouble as with any velomobile screen and surpisingly less than expected).
Most cumbersome is the deep sun, comparable to a car.

[freebeard]

I like their C-cab truck.



Now that's a kubelwagen. But I still don't know what that is on the tiller. Air horn? Dashcam?