Brief Description: T-712 Fuel Tank Attachment Angles
Find the exact lengthwise center of each flange. Drill a 1/8" hole in one flange of each angle. Set one T-712 aside and drill a #12 hole in the center of the other flange on the remaining six. When you are done, six of the attach angles will have a 1/8" hole in one flange and a #12 in the other. The seventh attach angle will have one 1/8" hole in one of the flanges and the other flange will be blank. Cleco the six drilled T-712 Attach Angles to the aft side of the pre-punched main wing spar so you have good access with the drill. Position them so the centerline is centered in the pre-punched holes in the spar. Clamp the angles in place and drill the remaining holes using the spar as a guide.
I did not have too much of an issue completing these steps. I drilled to flanges incorrectly. Bummer. So, as I move to the second tank I will replace them. I also decided to include the exact instructions in my log. It helps document and know exactly where I left off.
