Finished making the ELT mounting bracket. Sanded and deburred all the edges. Match drilled to the J-stiffeners and the ELT base plate, and deburred all the holes.
My clever shop trick for the day: How to debur the bottom of the lower J-stiffeners when the standard tools just won't work. I realized I could put the threaded deburring bit on the angle drilling extension.
And then hold in place, and turn the arbor(?) by hand. Worked great!
I think the ELT bracket worked well. One mod I can see that might be nice is making the forward edge of the mounting flanges deeper than the back. This would align the ELT more closely with the longitudinal axis of the airframe. But as it is, it's within the 10 degrees spec'd in the instructions.
