When you establish communications again? Communications are established
just once for any arrival or through flight, thereafter those communications
are maintained.


Well, if some time passes between one transmission and another, then
communications will need to be re-established. How much time? Well, we can
yak all day about that. Certanly if the first transmission is on the ground
before runup, and the next transmission is in the air, it would be reasonable
to conclude that we are no longer talking about "the same conversation", and
(as per the original scenario) he can enter the class C upon the new
establishment of communications.

Jose



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