English Dictionary

deep stall

名詞

(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.

日本語の意味

（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。

During the flight test, the crew became alarmed when the T-tailed prototype entered a deep stall, as the horizontal stabilizer and elevators were blanketed by the turbulent wake of the main wings and recovery seemed unlikely.

試験飛行中、乗員はT字尾翼の試作機が主翼の乱流により水平尾翼とエレベーターが覆われて機能を失い、回復がほとんど見込めないという非常に危険な失速に陥ったときに慌てた。

意味（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.

And even though my father had learned from past experience to watch this particular FAA pilot closely because of his tendency to pull back too far on the control column, Dad said he was still taken by surprise when the guy abruptly pulled back so hard that the 727 entered an extreme angle of attack—70 degrees rather than the usual maximum of 25 to 30 degrees—what an aerobatics pilot would do to start a snap roll or a spin. Suddenly, unbelievably, they were in a deep stall.

deep stalls （ plural ）