For manufacturing and weight considerations, (I do not want to bend .04 2024-t3) I am considering a built up spar c-channel web with separate riveted flanges as shown in the attached file. Shown is the compression top cap, web, flange, and flat caps. Rivets are not shown. Would anyone like to...
I am attempting to convert the Carbon Dragon Ultra-lite Sailplane to aluminum structure. There is a spec. in Basic Glider Criteria (FAA) for a 150# limit load at the tip. Depending on the assumptions made with the wing structure the axial loads on the rear spar are from 3000# to 1500#. The...