Why leave gliders aside ?
I've no desire to spoil anyone's fun and enjoyment, but unless gliders absolutely agree that they'll never fly in cloud then I reckon they - and everything else - should carry something which allows them to be pinged.
Can't be that difficult to produce a lightweight, battery powered unit even if it only has a fixed mode C ident (with GPS derived altitude) which means "I am a glider - and therefore highly likely to do something unpredictable" ...
OK, OK, I'm already out the door !
FF
