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post #11 of 16 (permalink) Old 05-04-2011, 12:32
KSH
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Quote:
Originally Posted by Stanner
Just going off at a slight tangent (I am thinking of fitting a panel) what effect does something like that have on fuel consumption - it looks to me to be as bad as a roof rack.
What is the best way of minimising the adverse effect of panels on the roof?
I wouldn't have thought it would be much, lets face it, motorhomes are about as aerodynamic as a breeze block to start with
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post #12 of 16 (permalink) Old 05-04-2011, 12:55
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Originally Posted by KSH
Quote:
Originally Posted by Stanner
Just going off at a slight tangent (I am thinking of fitting a panel) what effect does something like that have on fuel consumption - it looks to me to be as bad as a roof rack.
What is the best way of minimising the adverse effect of panels on the roof?
I wouldn't have thought it would be much, lets face it, motorhomes are about as aerodynamic as a breeze block to start with
Maybe, but as you can see (<left) mine is a low profile that isn't too bad at the moment.

However I can foresee adding a load of ironmongery like that, to what is a pretty smooth roofline, not helping much.
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post #13 of 16 (permalink) Old 05-04-2011, 13:03
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I dont think all that was added just to fit the panels, he has just modified it to fit the panels to it, if you have no roof bars on now then your best bet if your thinking of aerodynamics is something like these http://www.auto-mate.org.uk/solar-pa...es-pack-of-two
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post #14 of 16 (permalink) Old 05-04-2011, 13:11
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Yes, thanks, it would make sense to use something like that - but 47 inc.P&P???.
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post #15 of 16 (permalink) Old 05-04-2011, 13:13
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That was only a quick search to find an example, sure they will be available cheaper somewhere, Google is your friend
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post #16 of 16 (permalink) Old 05-04-2011, 13:18 Thread Starter
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Quote:
Originally Posted by Snelly
On second look at picture... why didnt you move the bars closer together and just mount the panel directly to the bars?
I did consider that. The panel sits directly behind the roof light opening. I had to raise this panel slightly more than most as the contact box on the rear was nearly an inch.

I then wanted to lower it as much as possible and had two different sizes of spacer available. (found in my bits box) I decided to rake it front to rear to avoid it becoming a wing and trying to rip itself off the roof.

I want to avoid making any more holes in the roof and this method means none other than the wire coming into the MHm. There is a cover on that entry point. The support bracket in the middle is merely tacked on using a small amount of marine grade sikoflex, which keeps it in place and cushions it slightly.

As far as wind resistance I already have a Camos dome up there and 3 roof lights. Added to that the shape of MHm I think this addition is unlikely to make much if any difference.
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