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IFR Enroute High
Altitude Charts
(Conterminous
U.S. and Alaska)
are designed for
navigation at or
above 18,000 ft
MSL. This four
color series
includes:
-
Jet Route
Structure
-
VHF radio
aids to
navigation
(frequency,
ID, channel,
geographic
coordinates)
-
Selected
airports
-
Reporting
Points
-
Revised
every 56
days
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