Vertical flight path and airspeed control system for aircraft

Details Vertical flight path and airspeed control system for aircraft Vertical flight path and airspeed control system for aircraft

1986-07-16

1988-08-16

Chin, Gary

Boots, shoes, and leggings

364434, 244181, 244182, B64C 1300

Patent

active

047648724

ABSTRACT:
An aircraft control system that simultaneously controls vertical speed (or flight path angle) and airspeed or Mach number by supplying the vertical speed (or flight path angle) command to the autothrottle system and the airspeed or Mach command to the autopilot pitch channel. A thrust reference computer provides an approximation of the thrust required to maintain the reference vertical speed (or flight path angle) and a vertical speed error signal in closed loop fashion provides a vernier adjustment to the approximation to provide the autothrottle channel command.

REFERENCES:
patent: 3618878 (1971-11-01), Klein et al.
patent: 3691356 (1972-09-01), Miller
patent: 3901466 (1975-08-01), Lambregts
patent: 3945593 (1976-03-01), Schanzer
patent: 3981442 (1976-09-01), Smith
patent: 4471439 (1984-09-01), Robbins et al.
patent: 4488235 (1984-12-01), Miller
patent: 4490793 (1984-12-01), Miller
patent: 4536843 (1985-08-01), Lambregts
patent: 4641268 (1987-02-01), Zweifel et al.

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