"Ron Natalie" wrote in message
m...

"S Ramirez" wrote in message
news:sZnFb.60969
What is a popup clearance?

An abbreviated IFR plan and the resulting clearance filed directly with
the controller.

Is this the same thing as directly filing an IFR flight plan in air or are
there several types of IFR clearances filed with the controller while in the
air, the popup clearance being one of them?

Simon