Brief Description: Cabin Frame Roll Bar 24: Position the angle
I decided on a couple things to help locate. One is to put tape on the frame and mark the position of the angle. This will help, but by itself is not accurate enough for me because I'm bad at marking and replacing the part in the same spot.
The other thing I did was calculate the distance from the forward edge of the angle that the skin holes should hit. That distance is 9/32s. So I marked a line on the angle that I could spot through the skin holes. This I used for for/aft position.
So I removed the frame and clamped just the angles in place.