Which solar panel for Trooper?

Rigid is best in my experience.
Have a look in Members Factsheets for my tome Executive, how I did mine in there.....

My roof is bowed also in addition the aft corner blocks are on the tapered ramps to the rear skylights.

This pic shows some of my curvature and the aft blocks on the skylight ramps


The corner, and you can have side brackets are plenty strong enough. The way to deal with curved roof is to fit the corner and side blocks to the rigid panel on a flat surface, using self drilling and tapping SS screws in the cutaways already in the blocks.
Get it on the roof and position it exactly where its going to be, then draw round the corners and side blocks with a marker pen.
Seriously clean and abrade the glue area and also the undersides of the blocks, use pure alcohol or similar, meths perhaps....
At this stage you'll see the roof curvature.
If happy then apply a large amount of Sikaflex 252 to each corner and side area, enough such that when the panel is placed, the glue will fill the gaps and form a flat surface for the blocks.
Then leave well alone, cover it by all means and keep away for 24 hrs.
It will then be well fixed to the roof.
Now you can drill vertically though the corner blocks and screw it to the roof, using large thread self tappers, SS if at all poss. Fit one, then remove it, then fill hole with Sikaflex, then refit it, that hole will be perfectly sealed. Do the others the same.
If, however you have the inside of the roof exposed, then SS bolts with penny washer on the inside will be better.
On my Exec, all of that is as done, but I haven't done the screws through the roof, relying entirely on the Sikaflex bond, shouldn't really admit this but its was still there after an 80Mph run!!!!

About 1inch