Just give up with him.
He has been told about 4444 doc for wake vortex speration and has had design codes given to him with defintions and its never expicit enough.
BTW the light/small thing is a UK only wake vortex cat and as such is only an ATC thing.
By the sounds of it he wants to stick a LET410 up a low level heli/light aircraft only VFR route. As the LET410 only cruises at something like 140-150 knots it will depend how much traffic use these routes if its sensible or not.
Last edited by mad_jock; 19th May 2012 at 07:55.