Originally Posted by IO540
I have no problem with people flying without transponders in so far as they are legal doing so (ok, it renders an RIS useless much of the time, causing the £millions spent on LARS to go to waste)
LARS tends to be primary radar,
AFAIK, with some units (for example Southend, IIRC) not even having the capabiliy to interrogate/receive transponders. While they will probably not show paramotors, they show non-squawking aircraft, microlights and probably gliders - can anyone from the ATC front tell us if they see gliders?