Last Updated：2025/12/06
(aviation) An extremely dangerous type of aerodynamic stall (sudden loss of lift caused by airflow separation) where the angle of attack of a T-tailled aircraft becomes so high that the horizontal stabilizer and elevators are blanketed by the turbulent wake of the main wings, rendering the stabilizer and elevators ineffective and often preventing recovery from the stall.
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deep stall
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Source Word
deep stall
Noun
(aviation)
An
extremely
dangerous
type
of
aerodynamic
stall
(sudden
loss
of
lift
caused
by
airflow
separation)
where
the
angle
of
attack
of
a
T-tailled
aircraft
becomes
so
high
that
the
horizontal
stabilizer
and
elevators
are
blanketed
by
the
turbulent
wake
of
the
main
wings,
rendering
the
stabilizer
and
elevators
ineffective
and
often
preventing
recovery
from
the
stall.
Japanese Meaning
（航空）T字尾機などで見られる、非常に危険な空力失速現象。機体が極端な迎え角に入り、主翼の乱流によって水平安定板と昇降舵が覆われ、効果を失うことで失速からの回復が困難になる状態。
Sense（1）
(aviation)
An
extremely
dangerous
type
of
aerodynamic
stall
(sudden
loss
of
lift
caused
by
airflow
separation)
where
the
angle
of
attack
of
a
T-tailled
aircraft
becomes
so
high
that
the
horizontal
stabilizer
and
elevators
are
blanketed
by
the
turbulent
wake
of
the
main
wings,
rendering
the
stabilizer
and
elevators
ineffective
and
often
preventing
recovery
from
the
stall.
（ plural ）
