Automated approach speed control for an airplane

Details Automated approach speed control for an airplane Automated approach speed control for an airplane

1990-11-08

1992-01-07

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft control

Automatic

244188, 244195, 244183, 36443107, 318583, G05D 108

Patent

active

050783459

ABSTRACT:
A flight control system of a turboprop airplane includes electronic controlled engines, which are governed by a manual operating device for setting the engine power in order to obtain a certain airspeed, a device for selecting a desired airspeed, and an engine control system for computing and controlling the required engine torque and speed as a function of ambient and engine conditions, the selected engine speed and the setting of said operating device. For automatically controlling the engine speed during the final approach to an airfield, the system includes an electronic approach speed control unit of which the adjustment signal influences the engine control device keeping the speed of the airplane during approach at a selected value whereby said manual operating device has a fixed setpoint. This electronic speed control unit may be carried out as an add-on device for retrofitting on a flight control system.

REFERENCES:
patent: 2553983 (1951-05-01), Saxman, Jr.
patent: 2670157 (1954-02-01), Peterson
patent: 2798682 (1957-07-01), Alderson et al.
patent: 3096955 (1963-07-01), Priestley
patent: 3456172 (1969-07-01), Hendrick et al.
patent: 3626163 (1971-12-01), Dommasch
patent: 4093158 (1978-06-01), Clews et al.
patent: 4209152 (1980-06-01), Stephan
patent: 4245805 (1981-01-01), Stephan
patent: 4958289 (1990-09-01), Sum et al.

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