After a search of all the usual sites, on and off for a couple of months; no one seems to have the square tubing called for, for the fuselage wing attachment. !/2" square tubing seems to only be stocked in .035 and .049 wall thickness. (Not .065).
What sounds like the best way to go? My choices would be 1/2" x 1" rectangular tubing or 5/8 x 5/8" square tubing. Both .065 wall. What do all of you engineers think? Thanks, Rich.