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Old 08-18-2011, 09:16 PM   #21
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Ok well a little design time now that the shell is back on the frame and the wind wont carry it away....

I am planning on using two of the IronRidge XRS rails per row with custom aluminum cross bars to limit the flex in the array.

There will be a street side row and a curb side row running the full length of the shell.

Rather than use the "L" mounting feet I am going to use an L extrusion mounted the length of the shell and then bolted into the XRS rail at multiple locations. This will dissipate any point load on the shell.

http://www.civicsolar.com/sites/defa...ail_System.pdf

I have used the heavy aluminum piano hinge before in creating tilt systems and this may be an option as well for a tilt on site system
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Old 08-19-2011, 03:52 AM   #22
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I think I like the idea of flush mounting the extrusion rail. I'm assuming there aren't any issues of catching debris or trapping water.
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Old 08-19-2011, 07:57 AM   #23
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Originally Posted by UAPachyderm
I think I like the idea of flush mounting the extrusion rail. I'm assuming there aren't any issues of catching debris or trapping water.
My biggest concern is not trapping any air.
I will have a lot of variable surface area moving down the road at 60mph. Don't want to turn it into a wing.
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Old 08-19-2011, 09:00 PM   #24
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Quote:
Originally Posted by Darkspeed

My biggest concern is not trapping any air.
I will have a lot of variable surface area moving down the road at 60mph. Don't want to turn it into a wing.
Lewster installed a spoiler/air dam on the front edge of his ... but a fly behind Airstream might save you on tires. 
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Old 08-19-2011, 10:00 PM   #25
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Lewster installed a spoiler/air dam on the front edge of his ... but a fly behind Airstream might save you on tires. 
Braking, however, could get REALLY exciting!
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Old 08-19-2011, 11:00 PM   #26
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I flat mounted mine with AL angle. Losing a 40 lb panel or four @70 really seems like a bad idea.
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Old 08-19-2011, 11:41 PM   #27
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Moving down the highway straight line shouldn't be a problem - crosswinds and turbulence from semi-rigs & underpasses might give all the stops a good rattle though.

On a continuous rail like the IronRidge XRS I think a larger footprint bracket or reinforcing plate matching the shell rib would provide equal or better bracing and allow water to drain... and maybe a little Stuka dive bomber sound effect in a strong cross wind

Wondering about the piano hinge - will they exist on both sides or wobble adjust from the center or such?

For a small maintainer panel I'd love to pirate the television antenna pivot mechanism idea to put a radome (radar dome) type azimuth and elevation adjuster for a single 40 or 50 watt panel.... manual, not tracking (yet)
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