I have an old Uhaul that I'm turning into an rv. I'm putting the exterior unit of a ductless mini split AC on the "mother's attic" portion of the truck box directly above the windshield.
They make a wall bracket for hanging these but I don't think it's designed for hitting pot holes at 70 mph. So I plan to make my own bracket. I'll also be framing for a cover vent and fairing for protection and streamlining.
The weight needs to be kept down so I'm thinking of using 1 inch aluminum square tubing with a 1/8 inch wall to make two L-brackets. I'd be using an DC tig welder with Alumiweld brazing rod. The rod claims a tensile strength of 40,000 PSI.
The charged AC unit weight is 85 lb and the center of mass will be about a foot from the wall.
Does this sound like it would hold up? I really don't want this thing crashing down into my lap.