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Old 08-07-2017, 05:55 PM   #1
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Aerodynamics

Has anyone thought of changing their end caps to emprove fuel economy? I have seen it used on tractor trailers. Also used of Rear defusers on some buses. Since I have to repair my rear end cap I'm looking for a good shape to change it to.
Thanks
Gordon

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Old 08-08-2017, 10:07 AM   #2
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as i drive down the highway, and at the fuel station, i also think about the aerodynamics of the bus.

i wonder if a Boat tail end like the trailer tails would help? i think they would.



my bus came with a generator hanging underneath, and each edge of the generator box has whiskers that hang to the ground. i don't know their function but i'd like to.

here is a picture of trans fluid draining, but you can see both sets of whiskers in the background. they are plastic and they wear unevenly. they slope upwards from the inside out.



Boattails, wind dams, i'd sure like to try more than i have

the wings you see sometimes would be cool to get. i think they help keep the back window cleaner.
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Old 08-08-2017, 10:42 AM   #3
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I don't think a bus suffers from aerodynamics issues. The most resistance would be under the bus not over it, and the domed top shouldn't have drag. The tires will likely give you more mileage than anything else.
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Old 08-08-2017, 11:56 AM   #4
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searching the interwebs.....

i came across this:

Airtab | Aerodynamic Fuel Savers | Welcome

someone buy it and try it!

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Old 08-08-2017, 05:06 PM   #5
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Join Date: Jul 2016
Location: Prince George, BC, Canada
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Year: 1974
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Chassis: CHEVROLET C60 just under 19700 lbs body#B10353
Engine: 350 ci on propane
Rated Cap: 48
Air foil above the windshield, air defusers at back on top and the sides. Flexible skirt to just above the bottom edge of the rims. Flush mounted Hub cap / wheel cover for Rear wheels.

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Old 08-08-2017, 07:33 PM   #6
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Those whiskers look like rain/mud flaps?

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Old 08-08-2017, 07:48 PM   #7
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Join Date: Jul 2016
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Year: 1974
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Chassis: CHEVROLET C60 just under 19700 lbs body#B10353
Engine: 350 ci on propane
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Quote:
Originally Posted by Njsurf73 View Post
Those whiskers look like rain/mud flaps?

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Rain, mud and stone guard, they make them to protect rv's.

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Old 08-08-2017, 09:01 PM   #8
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Read, explore, learn...
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Old 08-08-2017, 09:13 PM   #9
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Very interesting, thanks
Gordon

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Old 08-09-2017, 10:16 AM   #10
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the whiskers help stop side spray from tires in rain for better visibility look at ups trailers as that were i first saw them years ago they do work as for the trailer tails in your pic the fuel savings are so small it must be applied to a fleet that runs a lot of trailers lots of miles to be profitable. (i drive a truck) when backing into a dock or parking spot they often get forgotten and crunched. cost of fabrication and installation compared to fuel savings is not profitable
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