I decided to go with Archer antenna for VOR/ILS - installed in the right wingtip. I had to remove 5 nutplates, match drill antenna to fit these. then used a couple of #6 csk screws to secure to wingtip at the points indicated in the instructions. I used a method shared by Stein at Steinair using a solder sleeve to connect shielding of a section of RG400, as well as the center element, to the antenna per directions (directions say to twist the shielding into a wire, but this is harder than it sounds, and the solder sleeve method is more secure and more elegant).
I laid up a few strips of fiberglass to secure the longer antenna element in place - this should keep it form moving inside the wingtip.
I laid up a few strips of fiberglass to secure the longer antenna element in place - this should keep it form moving inside the wingtip.