On Mon, 6 Sep 2004 12:22:58 +1000, "Bushy" wrote:

Have a look at some of the car ones, and the replacement centres. Many of
the ones to suit the Aussie cars have a plastic extension shaft inside that
could be operated like a push pull cable from the cockpit. This would be
very light without the motor and most of the mounting bracket. Now where did
I leave the angle grinder?

You could even have different stops marked for different radio frequency
bands if you wanted to use the one antenna for different bands.

Add it to your checklist, just like flaps, with take off, cruise, pre
aerobatic and landing settings!

I'd have to take a look at one of the automotive ones, as, of course, the
length would have to be changed to match the Comm frequencies and this may
require some really fundamental fiddling with the existing mechanical
aspects.

And I hope to make this fully automatic, like a car antenna. Power-on the
avionics bus, antenna erects. Power-off the bus, antenna stows. I like it
when I don't have to think.

Ron "That's why I've lasted on USENET for twenty years" Wanttaja