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Old 06-30-2017, 03:05 AM   #9
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Default Re: Unexpected response from 3M about VHB 4950 tape for rigid solar panels

It should be noted that my lift/drag calculations were based upon 60 mph driving speed in still air.

If you hit a 60 mph headwind (let's say driving into a rain squall), the force goes up by a factor of four (lift and drag are V-squared beasties)

If your panels are mounted at the front of your roof: look at the slope up from your windshield... that's going to be vectoring the wind to a greater angle of attack.

p.s. i notice that that solar panel wind load report specifically mentioned that they (also) did NOT take into account the close-to-subsurface "ground effect" contribution
2005 T1N 118" Freightliner 2500 Passenger Wagon (2.7L, 15" tires, standard (short) roof)
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((as always: this post may go through a couple of post-posting edits... so maybe give it ten minutes before commenting))

Last edited by autostaretx; 06-30-2017 at 03:08 AM.
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