Last Updated
：2025/12/07
transition level
Noun
uncountable
usually
(aviation)
The
lowest
flight
level
above
the
transition
altitude;
depends
on
the
transition
altitude
and
the
measured
or
calculated
sea-level
atmospheric
pressure.
The
flight
level
at
which
a
descending
aircraft's
barometric
altimeters
are
reset
from
a
constant
setting
of
1013.25
hectopascals
to
the
setting
corresponding
to
the
actual
measured
or
calculated
atmospheric
pressure
at
mean
sea
level.
Japanese Meaning
航空における「transition level」とは、移行高度より上に位置する最も低い飛行レベルのことを指します。これは、降下中の航空機において、機体の大気圧計が標準値（1013.25ヘクトパスカル）から、実際の平均海面大気圧に基づいた設定に切り替えられる飛行レベルとなります。
Sense（1）
(aviation)
The
lowest
flight
level
above
the
transition
altitude;
depends
on
the
transition
altitude
and
the
measured
or
calculated
sea-level
atmospheric
pressure.
The
flight
level
at
which
a
descending
aircraft's
barometric
altimeters
are
reset
from
a
constant
setting
of
1013.25
hectopascals
to
the
setting
corresponding
to
the
actual
measured
or
calculated
atmospheric
pressure
at
mean
sea
level.
（ plural ）
Quizzes for review
(aviation) The lowest flight level above the transition altitude; depends on the transition altitude and the measured or calculated sea-level atmospheric pressure. The flight level at which a descending aircraft's barometric altimeters are reset from a constant setting of 1013.25 hectopascals to the setting corresponding to the actual measured or calculated atmospheric pressure at mean sea level.
音声機能が動作しない場合はこちらをご確認ください
See correct answer
transition level
The aircraft leveled off at the transition level to set the altimeter for flight levels.
See correct answer
The aircraft leveled off at the transition level to set the altimeter for flight levels.
音声機能が動作しない場合はこちらをご確認ください
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