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Old 06-09-2019, 09:19 PM   #3091 (permalink)
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but you can add some fins to lower wind resistance.

According to Homer Simpsion you will lower wind resistance using fins and a racing stripe

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Old 06-09-2019, 09:38 PM   #3092 (permalink)
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Quote:
Originally Posted by aerohead View Post
About the time the scientists figured out the lowest drag car bodies,DuPont-General Motors Corporation adopted design obsolescence and the annual styling change.They've done everything they can to delay aerodynamics and maintain emotion-driven,rather than reason-driven products.
Just watch a Denali or Silverado commercial today,you'll get the idea.
And watch how today,they're still attempting to kill California's home-rule,rather than just build more efficient vehicles for everybody.A two-faced Janus if there ever was one.
back in 08 they worked very hard NON gas guzzling SUV I mean i get 31MPG (25 MPG combined) highway with a Tahoe hybrid 6.0L v8 that is the same as a 2008 v6 2.4L Camey...


That is with a 11 years old worn out battery..

the previous year
>1998 Tahoe was 0.65+ square brick
2006 Tahoe was 0.45
2007-2014 Tahoe was 0.367
2008-2013 Hybrid trim only was 0.34 same as a Geo Metro.

the 2008 rear end enhancements help it's similar to the 2015 model

the front end being more flat-ish



no progress made my ass..


so from 1998 to 2007/2008* *0.34 ---2008 hybrid trim
it went from 0.65 to 0.367



0.34 standard in 2015 .
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Old 06-09-2019, 10:05 PM   #3093 (permalink)
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Quote:
Originally Posted by Tahoe_Hybrid View Post
back in 08 they worked very hard NON gas guzzling SUV I mean i get 31MPG (25 MPG combined) highway with a Tahoe hybrid 6.0L v8 that is the same as a 2008 v6 2.4L Camey...


That is with a 11 years old worn out battery..

the previous year
>1998 Tahoe was 0.65+ square brick
2006 Tahoe was 0.45
2007-2014 Tahoe was 0.367
2008-2013 Hybrid trim only was 0.34 same as a Geo Metro.

the 2008 rear end enhancements help it's similar to the 2015 model

the front end being more flat-ish



no progress made my ass..


so from 1998 to 2007/2008* *0.34 ---2008 hybrid trim
it went from 0.65 to 0.367



0.34 standard in 2015 .
You mean 1908? When the Model T Ford began its domination, GM could have competed directly. Instead, they decided to sell used cars as their low-price option, which encouraged style changes and a full line of cars of increasing "status."
We should not be surprised that companies have always tried to sell us the most expensive cars we will buy; we should just be glad that we have usually been smarter than we were in '57, when simply raising the price of a car raised expectations and sales. If we got what we paid for, it was pure bragging rights.
GM has always let their engineers play to both retain and hone talent, so their back lot features some pretty economical, unconventional wheels, but they don't see production. The Lean Machine was a rare look at that work.
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Old 06-09-2019, 11:42 PM   #3094 (permalink)
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Wouldn't it be great if roads were so smooth and lacking in dips and valleys that the truck/trailer relationship could tolerate that setup? Otherwise some extreme creativity is needed either in suspension compensation or moving body panels. Or maybe the trailer nose can tuck into/under the truck fairings, again provided movement is limited or the gaps are generous enough or the fairing can "give"... or what?

I say fix the truck to the trailer, eliminate that gap altogether, and make both the front axles steer.
they do make them like that it's called a box truck


it would be a after market add on also an OEM version..

most of the time trailers need to be removed etc.. my IDEA would accept this issue...


a Custom accordion style gap filler ..

it would have to be custom to each tractor for perfect fit


they use them on the SUPER long metro buses



the one in the photo has a fixed one which would be use less

I would be worried that those metal hinges will FAIL (metal fatigue or wear and tear) and have 30 pound sheet metal flying off into traffic.. THAT is why we don't have them today
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Old 06-10-2019, 01:52 AM   #3095 (permalink)
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I may've found aerohead's long lost Greyhound bus picture, or at least a screenshot of an annotated printout. The search criteria was https://duckduckgo.com/?q=bus+with+attached+aerodynamic+trailer

Here in all it's glory, from Imgur:


Now safely ensconced in my Aero Technical album.
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Old 06-12-2019, 02:29 PM   #3096 (permalink)
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Chevrolet may have copied Alfa Romeo, but didn't Alfa Romeo copy Tatra?



Just A Car Guy: 1955 Alfa Romeo 1900C SS Speciale by Boano makes me wonder if this design influenced the 63 split window Vette which would have been in early design by 1961
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Old 06-12-2019, 02:55 PM   #3097 (permalink)
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^^ I'm sure that everyone copied the early VW bug on that one. :-)
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Old 06-12-2019, 09:02 PM   #3098 (permalink)
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Quote:
Originally Posted by Bicycle Bob View Post
^^ I'm sure that everyone copied the early VW bug on that one. :-)
Tatra successfully got a settlement out of VW for copying their cars in the beetle....

https://en.m.wikipedia.org/wiki/Tatr...agen_KdF-Wagen
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Old 06-12-2019, 09:09 PM   #3099 (permalink)
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Tatra successfully got a settlement out of VW for copying their cars in the beetle....

https://en.m.wikipedia.org/wiki/Tatr...agen_KdF-Wagen
That sort of thing is why I never spent much on patents. The VW was first drawn in 1922.
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Old 06-12-2019, 11:30 PM   #3100 (permalink)
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1922? [citation needed]
In 1922 Porsche was working on the Austro-Daimler_Sascha


There was a lot of back-and-forth at the time. Josef Ganz had the Standard Champion on the market in 1933, the same year Hitler sketched out the KDF Wagen on a napkin.


Chassis van het Ardie-Ganz prototype in de Ardie-fabriek.
https://historiek.net/het-geheim-van...wagen-2/43068/

Porsche vs Ledwinka vs Ganz

The split-window has nothing on this Studebacker.


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