Hi,Re your strut design, I used aluminium tube on my MiniMax, and faired it with balsa wood (from Bunnings). The balsa shapes easily, & weighs next to nothing. I bonded it to the strut with filled WEST. I was going to coat it with GRP tissue and epoxy, but ended up just coating with unreinforced epoxy. Lasted very well in service.
The rear strut is 6061-T6 ally tube, 1.25" dia, 0.58"wall. The front strut is same dimensions, but 4130 steel.What aluminium tubing did you use?
That's kind of what I did on my Mini Max except I glued it to the strut and glued the rear edge together, no rivets. Made very little difference in speed which was disappointing.Get a strip of aluminum sheet, bend it into a deep V shape, and rivet it onto the tube so the cross section is like this. <o