Originally Posted by Mike Jenvey
Typical Eurocontrol/JAA wording!!! Of course you can allow a non-RVSM aircraft into RVSM airspace - it's just that you might want to use 5000ft vertical separation....
Wouldn't it be nice if one day the people who write the rules took the trouble to make sure that they dotted the Is and crossed the Ts. But to do that I suppose you would need to work out all the answers before you dump it on the controllers.
On the original question, although I don't do RVSM, it seems clear to me that no mode C = negative RVSM.