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Flight level
Meaning
Noun
●
Any of several
internationally
agreed
standard
altitudes
that are based on
atmospheric pressure
rather than
on
true
height
●
In Aviation:
a
pressure altitude
measured
in terms of
hundreds
of
feet
above
sea level
(ie.
flight level
120 (FL120) is 12,000
ft
. ASL)
Sourced from
Wiktionary
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