but that's another unquantifiable argument
Why? We have strips (you remember, those funny little paper things!) for all the aircraft worked outside CAS, plus anything worked inside CAS doing multiple trips (i.e. the local heli doing city tours etc)., so it should be able to be accounted for. Unfortunately, it appears to have been overlooked in the last count up, as I believe we had precisely 0 overflights...funny seeing as I had at least 4 today during my 1 session in air, and the weather was shi*!