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Old 05-23-2022, 04:47 PM   #41 (permalink)
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I made it to 15...
https://www.mk1autohaus.com/assets/images/251819015.png

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Old 05-23-2022, 05:08 PM   #42 (permalink)
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blowers

Looks good! The unit has a double squirrel-gage. ( twice the fun! )
What I experienced on the BOSCH, was that, as the envelope filled, and the fan was just dead-headed, no longer actually moving a volume of air, and just providing static pressure, the fan power draw fell off, kinda just 'cruising.'
And regardless of the constant electric load on the alternator, the T-100 went over 30-mpg for the 1st time.
Whatever you do, DO NOT use expandable Naugahyde automotive upholstery fabric. The envelope will not maintain its dimensions, wrecking the aerodynamics.
The advertising folks use a Hypalon-impregnated aerospace fabric. Rip-stop Nylon will work, but it needs UV protection. ( it can kill a perfectly good parachute ).
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Old 05-23-2022, 05:19 PM   #43 (permalink)
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Quote:
Originally Posted by aerohead View Post
The advertising folks use a Hypalon-impregnated aerospace fabric.
Billboard covers?
I have alot of that.

Last edited by sregord; 05-23-2022 at 05:30 PM..
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Old 05-23-2022, 05:33 PM   #44 (permalink)
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Billboard................

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Originally Posted by sregord View Post
Billboard covers?
I have alot of that.
Nice! You'd think it's engineered for exposure to the elements.
Marine-grade thread is also designed for the outdoors. You sure don't need seams ripping out on you.
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Old 05-26-2022, 03:03 PM   #45 (permalink)
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Maybe I should start with a belly pan?
I have this ...tickle in the back of my neck about the future of this MH(Moby)... and its sell ability.
An improvement that doesn't effect the look.

Curious: I see many using coroplastic to smooth the underside... good because of weight, 9#s- 5/32"-4x8 sheet, but needs a fair bit of "structure" to rivet or screw to.
Has anyone used 21#s- .181" -4x8 plywood, sealed/painted with epoxy (Patio/concrete paint). It has alot of shear, and "twist" resistance. Neither belong near hot exhaust obviously, but 3 sheets under a Honda would equal a 36# difference, but would require less brackets, & frames. Moby would need ~7 sheets
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Old 05-26-2022, 03:15 PM   #46 (permalink)
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belly pan

Quote:
Originally Posted by sregord View Post
Maybe I should start with a belly pan?
I have this ...tickle in the back of my neck about the future of this MH(Moby)... and its sell ability.
An improvement that doesn't effect the look.

Curious: I see many using coroplastic to smooth the underside... good because of weight, 9#s- 5/32"-4x8 sheet, but needs a fair bit of "structure" to rivet or screw to.
Has anyone used 21#s- .181" -4x8 plywood, sealed/painted with epoxy (Patio/concrete paint). It has alot of shear, and "twist" resistance. Neither belong near hot exhaust obviously, but 3 sheets under a Honda would equal a 36# difference, but would require less brackets, & frames. Moby would need ~7 sheets
If you can locate orbywan's old RV posts, you might find time-saving tricks he used. He got his Ford MH up to 14.5-mpg.
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Old 05-26-2022, 03:19 PM   #47 (permalink)
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Aero RV

If it's been mentioned in this thread, I missed it.

A good example of a boat tail on a motorhome was done by user Orbywan a few years back. Did you review his build and results?

https://ecomodder.com/forum/showthre...d-e-18151.html

Imagine that. Both posted about it at the same time.....
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Old 05-26-2022, 03:21 PM   #48 (permalink)
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Aero RV ( custom boat tail for '95 Ford E-350 Class C Motorho

See if this is enough to locate Orbywan's RV mods.
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Old 05-26-2022, 03:24 PM   #49 (permalink)
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Funny!

Quote:
Originally Posted by ennored View Post
If it's been mentioned in this thread, I missed it.

A good example of a boat tail on a motorhome was done by user Orbywan a few years back. Did you review his build and results?

https://ecomodder.com/forum/showthre...d-e-18151.html

Imagine that. Both posted about it at the same time.....
Yeah, 14.5-mpg got everyone's attention!
The rooftop fairing for the Colemen AC units are now used by Boeing Aircraft Corp. on their 737 MAX 800.
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Old 05-26-2022, 03:28 PM   #50 (permalink)
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Quote:
Originally Posted by aerohead View Post
If you can locate orbywan's old RV posts, you might find time-saving tricks he used. He got his Ford MH up to 14.5-mpg.
WOW... 14.5MPG?
I did find the older thread :
https://ecomodder.com/forum/showthre...n-s-18427.html

More research

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