“I hope not. I hope that ALL flying machines will HAVE to have a transponder, mode C at least, then we will be able to have some sort of TCAS, and for those aircraft without electrical system it is not a bif deal to add one (leave gliders aside).”
That is the point the CAA started from, except they wanted gliders as well. After a huge effort on the part of the LAA and its allies we convinced them it was not technically feasible given current technology. This is now off the table, but may be revisited in the distant future.
Rod1
PS Bose, I have often thought that the ultimate in flight safety is ground everything. It would do wonders for the stats.