Random Aerodynamic Oddity of the Day Thread

[freebeard]

So weird, does not match the concept sketches that I recall.

it's a retro-mobile Buick Wildcat. I searched on 'aerodynamic safety car and this came up:





https://ecofriend.com/eco-cars-lamin...odynamics.html

And this....




https://www.3ders.org/articles/20160...on-the-go.html

Being able to change the tire's rubber compound on the fly is a safety feature, is it not?

[Piotrsko]

Depends if the tire rubber adheres to the tire or your windshield

[cRiPpLe_rOoStEr]

Originally Posted by freebeard

Converted to articulated steering. Probably not safe above 30mph without some sort of Artificial Intelligence to center the steering.

The first thing that comes through my mind when I remind of articulated steering is something like this:


Well, those articulated tractors usually had individual clutches for each front wheel in order to provide an effect similar to a differential and ease the effort while cornering on pavement, at least the ones with handlebars instead of a steering wheel.

[freebeard]

https://www.mascus.co.uk/constructio...-wheel-loaders

I think of these. They're lethal because they have no suspension, just bouncy tires. At speed on a rough road they'll pitch back and forth until they're up on one wheel.

[kach22i]

You can debate if this is aerodynamic or not, cannot debate it's oddness.

MORE random pics...... - Page 4716 - Pelican Parts Forums


I admit that I like it more than I hate it.

I think it's really snail.

[freebeard]

I have a friend that made a shingled egg-shaped house-truck in the 1980s. It appeared in the book Shelter IIRC.

Earlier in this thread:

Originally Posted by kach22i

Yea I own a small hovercraft and have been nuts about them since 1966 when I was six years old.

Contrary to the one report calling it circular it looks elliptical to me.

The layout of one fan in front, another behind was successful on many annular jet skitless hovercraft of the day (ie Curtis Wright Aircar). They bled lift air though vanes to go forward and stop or turn.

I liked the Yellow Jacket. Never had one.

https://duckduckgo.com/?q=popular+mechanics+yellow+jacket+hovercraft

[kach22i]

Originally Posted by freebeard

I liked the Yellow Jacket. Never had one.

I've not see one of those (in person), but something very similar was at a Hoverrally once and it could not fly in a straight line, it kept swaying right and then left.

I suspect the flat sides were acting like a rudder in the crosswind and kept redirecting the nose/bow. I do not recall if it had the vertical stabilizers.

http://futuristicnews.com/wp-content...istic-car2.jpg

A new concept car has been presented by a French designer Dimitri Bez. Hexa is a solar-powered car, featuring an unusual roof covered in dimples. The unique roof surface, inspired by a golf ball, helps to increase the vehicle’s aerodynamics, efficiency, reduce its drag and limit any heat transfer.

[kach22i]

I don't have a rear view, but it sure is odd looking.

https://www.pinterest.com/pin/572660908859433796/

Zeiner Kleinwagen 1922 Obviously an aerodynamic experiment. -- way ahead of its time!

EDIT: Found a rear view.

https://www.flickr.com/photos/mrscharroo/6112552834


Bild: Zeiner Kleinwagen (1935) - Stromlinien-Automobil
https://www.zwischengas.com/bild/Zei...d-83f5f820d97e

[kach22i]

At least it's hydrodynamic.

https://i.reddit.com/r/floatingcars


It might be aerodynamic.

Fairthorpe Atom 250cc 1954
http://picssr.com/photos/mrscharroo/...d=65795467@N02

[Bicycle Bob]

Originally Posted by kach22i

I've not see one of those (in person), but something very similar was at a Hoverrally once and it could not fly in a straight line, it kept swaying right and then left.

I suspect the flat sides were acting like a rudder in the crosswind and kept redirecting the nose/bow. I do not recall if it had the vertical stabilizers.

http://futuristicnews.com/wp-content...istic-car2.jpg

Arrgh! Dimples are not a panacea. They are used on golf balls because their shape is so bad that another mistake can improve it. Specifically, the transition from air getting out of the way to air returning is so abrupt that the air is thrown right off, expanding the wake more, unless it has been churned up to stick on the surface. There are a few other examples of boundary layer turbulence being used to help fix a shape, but they don't get into the popular literature as a trap for the amateur.