Chapter 6 Empennage Date 2/15/00 Procedure VS-2 Mounting the vertical frame to the jig. I decided to make mounting brackets from aluminum angle and instead of drilling the brackets all at one time. I drilled one bracket, clamped it in location and then ran a string thru the bracket to the other end of the jig. I leveled the string and used it to mark the other brackets at there locations. Since I made the fixture from steel and the brackets from aluminum I super glue them in location. It works great! Then mounting the frame was as easy as bolting it on. (Image) 013