when does a "remain clear" instruction end?

"Arden Prinz" wrote in message
om...

You've indicated that a "remain clear" stays in effect until ATC
issues a subsequent communication that permits or requires entry into
the class C airspace. This sounds reasonable. The real question is
knowing what communications permit or require entry into the class C
airspace and which ones do not so that when I'm in the air and hear a
communication I can know whether that communication suffices.


Any instruction where compliance permits or requires entry to the Class C
airspace.



I'm not sure where you got this list.


I wrote it.



Does "proceed on course" always permit entry, or does it depend upon
the relative positions of the airplane, class C airspace, and route of
flight?


If the controller knows your desired course and your desired course transits
Class C airspace and he tells you to "proceed on course" then "proceed on
course" permits entry. If the controller doesn't know your desired course
and he tells you to "proceed on course" then "proceed on course" permits
entry.



For example, if I'm headed away from the class C airspace
toward an intermediate waypoint and I hear the "proceed on course",
can I then go through the class C?


If a controller isn't aware of your course but still tells you to "proceed
on course" it means he has determined you can safely enter Class C airspace
on any course. But why would you go out of your way to enter Class C
airspace?