Originally Posted by
chevvron
No listing as far as I know. And as far as I know, only the NATS control centres have it, the necessary display equipment not being cost effective for most airport authorities ie 'nice to have but not essential so the cost cannot be justified'.
If only I could use the same argument.
A while back I estimated putting a Mode S transponder in as almost £4K as the only way to make room for it is to replace the panel and some of the other instruments with smaller ones. £4K is over 30% of the value of the glider. I have no idea where EASA is with this either - certainly there is no schedule for a transponder from the maker, who now no longer manufacture gliders.