I cut a total of 200 rivets from AD-4-12 to AD-4-11 to make them the right length for the section of wing spars that is reinforced with a quarter-inch bar of 2024-T4 aluminum. This included 184 that I calculated I would need for the spars themselves, plus 16 I used for practice on a mock-up of the spar I made to check my calculations.
