Aztruck, whether or not the originator of VMCA or VMCG intended the A to be airboune or G to be ground I don't know. But it is a very good way of remembering what they stand for as far as i've been taught. ie VMCG .minimun conrol speed ground. (simplified I know but works for me).. .. .Along the same line, as a PPL I was taught VSO as Sh~t Out. Takes a little bit of lateral thinking but hey, that was was one definition I never had to revise