초록 ▼

Deceleration control apparatus for an aircraft having an automatic altitude capture and hold system and an airspeed hold system, both systems controlled by controlling pitch attitude wherein during a descent from a higher altitude under airspeed-on-pitch control with throttle set at idle thrust, and

Deceleration control apparatus for an aircraft having an automatic altitude capture and hold system and an airspeed hold system, both systems controlled by controlling pitch attitude wherein during a descent from a higher altitude under airspeed-on-pitch control with throttle set at idle thrust, and at some existing negative altitude rate, a slower speed is commanded, a synthetic altitude based on the existing descent rate is computed and the attitude capture and hold system operation is switched into control in place of the airspeed on pitch control to cause the aircraft to flare toward the synthetic altitude. The resultant loss of airspeed, i.e., craft deceleration, during the altitude capture flare is monitored and when the commanded airspeed reduction is achieved, the airspeed-on-pitch control is resumed to thereby hold the commanded lower airspeed.

대표청구항 ▼

Deceleration control apparatus for an aircraft flight control system including servo means for controlling aircraft pitch attitude, comprising a. An airspeed hold subsystem for controlling said servo means, b. An altitude capture and hold subsystem for controlling said servo means, c. Means for comm

Deceleration control apparatus for an aircraft flight control system including servo means for controlling aircraft pitch attitude, comprising a. An airspeed hold subsystem for controlling said servo means, b. An altitude capture and hold subsystem for controlling said servo means, c. Means for commanding a new airspeed less than an existing commanded airspeed, said existing commanded airspeed being held by said airspeed hold subsystem, and d. switching means responsive to the difference between said commanded new airspeed and said existing commanded airspeed for severing said airspeed hold subsystem from control of said servo means and substituting said altitude capture and hold subsystem therefor.