Brief Description: Mark and drill the F-757-T through longeron.
I marked the hole locations as per the drawings and drilled through the longeron and F-757-T gusset. Notice again I’m using the technique to match drill these holes using a clamped piece of scrap. I do this when ever I can.
Take note of the drawings. The aft 5 holes are 1/8 inch. The first 2 of the 5 are flush and the aft 3 are universal. Just saying.