Last Updated：2025/12/07
(aviation) An instrument approach using a guidance system that provides only horizontal, and not vertical, guidance (such as VOR, NDB, or localizer navigation), requiring the pilot to manually maintain terrain clearance by flying at a predefined safe altitude for each segment of the approach by reference to their altimeter.
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non-precision approach
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Source Word
non-precision approach
Noun
(aviation)
An
instrument
approach
using
a
guidance
system
that
provides
only
horizontal,
and
not
vertical,
guidance
(such
as
VOR,
NDB,
or
localizer
navigation),
requiring
the
pilot
to
manually
maintain
terrain
clearance
by
flying
at
a
predefined
safe
altitude
for
each
segment
of
the
approach
by
reference
to
their
altimeter.
Japanese Meaning
非精密アプローチは、航空機の計器進入法において、誘導システムが水平方向の情報のみを提供し、高度情報を提供しないため、パイロットが手動で安全な高度を維持しながら進入する手法を指します。（例：VOR、NDB、ローカライザー）
Sense（1）
(aviation)
An
instrument
approach
using
a
guidance
system
that
provides
only
horizontal,
and
not
vertical,
guidance
(such
as
VOR,
NDB,
or
localizer
navigation),
requiring
the
pilot
to
manually
maintain
terrain
clearance
by
flying
at
a
predefined
safe
altitude
for
each
segment
of
the
approach
by
reference
to
their
altimeter.
（ plural ）
