Christopher wrote:
I have 30 years experience working with many different types of antennas
from 100 KHz through 20 GHz and can answer some questions for you.

If you have a rag and tube aircraft, you can actually couple to the
tubing in the frame and use it as a radiator itself but with a fuel
tank and instruments in the airframe you could get cross coupling that
you might not want. Yet, I believe it might be possible to couple to
the tubing in the vertical stabilizer which should be far enough away
to be far less coupling than you would have with a standard whip
antenna mounted over the cockpit.

The fuselage is one humungous welded cage. If you used it for a
radiator, what would you use for a ground plane? Don't you need a
ground plane?

--
This is by far the hardest lesson about freedom. It goes against
instinct, and morality, to just sit back and watch people make
mistakes. We want to help them, which means control them and their
decisions, but in doing so we actually hurt them (and ourselves)."