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Old 04-05-2021, 03:41 PM   #691 (permalink)
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I guess you could call this one an "odd quote", and maybe applies to aerodynamics when talking about aerodynamic template models and NACA airfoil/wing shapes perhaps?

Quote:
all models are wrong, some are useful
As read today in another forum, but also has it's own Wikipedia page.

All models are wrong
https://en.wikipedia.org/wiki/All_models_are_wrong
Quote:
"All models are wrong" is a common aphorism in statistics; it is often expanded as "All models are wrong, but some are useful". It is usually considered to be applicable to not only statistical models, but to scientific models generally. The aphorism recognizes that statistical or scientific models always fall short of the complexities of reality but can still be of use.

The aphorism is generally attributed to the statistician George Box, although the underlying concept predates Box's writings.
https://slideplayer.com/slide/4221806/

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Last edited by kach22i; 04-05-2021 at 03:48 PM..
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Old 04-05-2021, 03:53 PM   #692 (permalink)
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Old 04-05-2021, 04:06 PM   #693 (permalink)
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Quote:
Originally Posted by kach22i View Post
I guess you could call this one an "odd quote", and maybe applies to aerodynamics when talking about aerodynamic template models and NACA airfoil/wing shapes perhaps?



As read today in another forum, but also has it's own Wikipedia page.

All models are wrong
https://en.wikipedia.org/wiki/All_models_are_wrong
I did a whole video on it.

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Old 04-05-2021, 07:47 PM   #694 (permalink)
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Quote:
Originally Posted by freebeard View Post
Makes me wonder what steering linkage is like.
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Old 04-06-2021, 09:53 AM   #695 (permalink)
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More interesting: does the driver swivel with the power unit?
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Old 04-06-2021, 12:19 PM   #696 (permalink)
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That's probably the easiest. Perched on the back like a farm tractor.
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Old 04-07-2021, 12:48 AM   #697 (permalink)
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Quote:
Originally Posted by Piotrsko View Post
More interesting: does the driver swivel with the power unit?
Presumably not. On a sidenote, it's impossible to remind the forward-control conversions which used to be done to bonnetted trucks in my country to use their frames to assembly buses in the '50s and '60s before Mercedes-Benz took over much of the local truck and bus market.
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Old 04-07-2021, 12:07 PM   #698 (permalink)
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Random TRANSPORTATION pictures - Page 2462 - Pelican Parts Forums


Low "A" in CdA.
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Old 04-07-2021, 12:26 PM   #699 (permalink)
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One of these things is not like the others:


http://justacarguy.blogspot.com/2021...-remember.html
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Old 04-09-2021, 08:31 AM   #700 (permalink)
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Helps move large aircraft parts that may be aerodynamic, and it's odd looking.

Boeing dual-driver Long Load Crew for hauling wing parts - video and photo
https://www.homemadetools.net/forum/...eo-photo-63523


Video in link above.

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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
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