"S Green" wrote in message ...
"Ace Pilot" wrote in message
om...
Judah wrote in message
Where would I find out the total number of airplanes owned by all of the
airlines worldwide?

The FAA estimated that in 2002 there were 5,156 passenger jet
aircraft, 976 regional jets, 1,034 cargo jet aircraft, and 2,521
commuter (prop and jet) aircraft in the U.S. That's a total of 9,687
aircraft.

what part of the word "worldwide" is difficult?

What part of "helpful information" is difficult for you? The
discussion centered on U.S. ATC costs and how they are allocated.
Since the vast majority of those services are used by U.S. air
carriers and U.S. general aviation, the number of aircraft in the U.S.
air carrier fleet is very relevant. Please let me know if additional
explanation is needed, or if you just like to be excessively rude.