deep stall condition造句

• This can also result in a deep stall condition.
• The aircraft may be prone to suffering a dangerous deep stall condition, where a stalled wing at high angles of attack may blank the airflow over the tailplane and elevators, thereby leading to loss of pitch control.
• This called for complex and ( in the 1960s ) unreliable automatic stall warning systems such as stick shakers and stick pushers to prevent the aircraft getting locked into the deep stall condition, although the Il-62's wing was designed to prevent deep stall.
• The loss of lift causes high sink rates which, together with the low forward speed at the normal stall, give a high \ alpha with little or no rotation of the aircraft . BAC 1-11 G-ASHG, during stall flight tests before the type was modified to prevent a locked-in deep stall condition, descended at over 10, 000 feet / minute and struck the ground in a flat attitude moving only 70 feet forward after initial impact . show how the aircraft attitude in the deep stall is relatively flat, even less than during the normal stall, with very high negative flight path angles.