Fabricated doublers for 2 COM, 1 TXPNDR, 1 ADS-B in, 1 GPS, 1 ELT antennas over four days from 12/30/2014 to 1/3/2015. Early stages of one of the COM antenna doublers shown in the pic. The doublers should be the same thickness as the skin--032. I didn't have enough 032, so I used two thicknesses of 016, and will use a dense rivet pattern to tie it to the fuse skin, The blue Sharpi lines around the edges are bend lines to make flanges that will tie into fuselage ribs as well as stiffen the doubler over all.
(This entry written 07/18/2016 from handwritten notes, so quoted hours are accurate.)