Question for everybody on aluminium material replacement.
My plan for CH640 Fuselage required "L" longeron made from 6061-T6, 0.093 thickhness (3/4" x 3/4"), but my local provided is back order on this material.
He propose me 1 x 1 x .125 thickh, but in 6063-T3 alu. Could I replace it by this one ? or other any other material like 2024-T4 could be use (in same or other thickness).
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