Originally Posted by
Dick Smith
Do you realise that no other country has C over D?
I live in the US, so I'm just a lurker here. But take a look at KHWD (Hayward) in California. KHWD is Class D to 1500, then class C (for KOAK) to 2100, then class B (for KSFO) to 10000, then Class E above that (to 18000).