Automatic airspeed engage/disengage

Details Automatic airspeed engage/disengage Automatic airspeed engage/disengage

1981-03-30

1983-02-01

Smith, Jerry

Boots, shoes, and leggings

244 1713, G06F 1550, B64C 1100

Patent

active

043719384

ABSTRACT:
In an automatic flight control system (FIG. 1) an airspeed control engage function (84) is automatically engaged (136, FIG. 2; 244, FIG. 4) in response to airspeed above a threshold magnitude, such as 45 knots (88, FIG. 2) and will remain engaged (subject to a fault condition, 135) until the airspeed command (75) reaches a predetermined, insignificant magnitude (132). An airspeed error integrator 241 which accommodates the difference between a reference attitude and an attitude required for a reference airspeed, does not react to large airspeed errors as a consequence of pilot maneuvering due to pilot force on the control stick (35, 109) opening the input (252, FIG. 4) to the airspeed error integrator.

REFERENCES:
patent: 4004756 (1977-01-01), Gerstine et al.
patent: 4029271 (1977-06-01), Murphy et al.
patent: 4168045 (1979-09-01), Wright et al.
patent: 4304375 (1981-12-01), Builta et al.

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