"Frank van der Hulst" wrote in message
...
First thing would be Bluetooth headsets... no more cords tangling round
the cockpit.

That would be pretty nice. But now you need batteries in your headset to
power the audio amp.

Next would be various engine instruments... EGT, CHT, etc.

I guess you'd need some devices (i.e. wires) for routing the signal through
the firewall or around it. How much lighter would this be than, say, a
twisted pair for CAN?

Maybe move the entire radio receiver out to a wingtip or somewhere well
away from the engine's RF noise.
But I can't see that being self-powered.

The receiver could be, but not the transmitter. An antenna wire is probably
a lot lighter than running power out, so I guess that would need to stay in
the cockpit.