"Scott Aron Bloom" wrote in message
...
Ok, Im not talking about the commercial carriers. But why would a general
aviation plane have dual transponders? Why waste the panel space? So
they
go
tits up that often in flight where its necessary?

Scott



I dunno, but maybe for the same reason some people carry along handheld
radios, pocket GPS, extra batteries, 2 or 3 pencils, yadda, yadda...