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Old 02-09-2019, 03:53 PM   #181 (permalink)
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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?

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Old 02-10-2019, 10:24 AM   #182 (permalink)
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Depends if the tire rubber adheres to the tire or your windshield
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Old 02-10-2019, 10:21 PM   #183 (permalink)
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Originally Posted by freebeard View Post
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.
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Old 02-10-2019, 10:59 PM   #184 (permalink)
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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.
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Old 02-11-2019, 12:51 PM   #185 (permalink)
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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.
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Old 02-13-2019, 02:22 PM   #186 (permalink)
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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:
Quote:
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

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Old 02-13-2019, 10:02 PM   #187 (permalink)
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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



Quote:
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.
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Old 02-13-2019, 10:09 PM   #188 (permalink)
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I don't have a rear view, but it sure is odd looking.

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

Quote:
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
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http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
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Old 02-13-2019, 10:21 PM   #189 (permalink)
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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
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1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html

Last edited by kach22i; 02-13-2019 at 10:29 PM..
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Old 02-13-2019, 11:40 PM   #190 (permalink)
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Quote:
Originally Posted by kach22i View Post
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.

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