Just two words on the situation, otherwise you will not understand the question: I am in Tunisia, my KR2 is in France. I want to prepare my trip to go there, and I will make a few mods to the aircraft. So, I am now busy preparing parts, but I have no access to the aircraft now to check layouts, dimensions, etc.
OK, here is the problem. The transponder currently installed is a Bendix King KT 76. The transponder antenna is probably a KA60. The antenna has been installed under the baggage compartment shelf. As we have debated a few months ago, this is very bad, because it probably frys my brains. So, I want to move the transponder antenna to is normal location: under the belly. And I also want to make a ground plane. And here are the questions: - What is the correct size and shape for the ground plane? - How is the antenna mounted? How many holes, what size? How many contacts? - How does the antenna contact to the ground plane? Is it through its mounting washer? - I intend to make the ground plane with a sheet of aluminum foil, which will be reinforced by a sheet of Vinyl on top. Must I leave a large hole in the middle of the Vinyl, to allow the foil to make contact with the washer? - What can I use to glue the antenna plane to the floor? Is double sided adhesive OK? Is contact adhesive glue better? Or is it better to glue the foil to a hard sheet of plastic, and screw everything in place without glueing? Or is it better to cut the ground plane out of a thin sheet of aluminum (0.8mm is the thinnest I can get)? Serge Vidal KR2 ZS-WEC Tunis, Tunisia
