Aircraft automatic landing system with engine out provisions

Details Aircraft automatic landing system with engine out provisions Aircraft automatic landing system with engine out provisions

1990-01-26

1992-05-12

Chin, Gary

Boots, shoes, and leggings

364434, 364435, 73178T, 244183, G06F 1550

Patent

active

051133466

ABSTRACT:
Disclosed is a method of and apparatus for processing flight control signals in an automatic landing system so that automatic landings can be executed within the bounds of current certification requirements (Category III weather minimums) and in a manner that in effect emulates standard manual landing procedures. Included is provision for introducing engine-out sideslip that insures that the automatic landing approach and touchdown is made with the aircraft wings level or with the upwind wing low. Also provided is the generation of rudder and wheel (aileron) compensation for lateral ground effects that occur during a landing with sideslip when the aircraft altitude is approximately one wingspan or less. Provision also is made for rudder control to offset yawing moment that occurs when the thrust of the operative engines is retarded prior to touchdown. A two stage alignment procedure is provided for use in both engine-out automatic landings and normal automatic landings to decrab the aircraft throughout a moderately light to relatively high crosswind range.

REFERENCES:
patent: 4354237 (1982-10-01), Lambregts et al.
patent: 4538229 (1985-08-01), Baltzer et al.
patent: 4763266 (1988-08-01), Schultz et al.
patent: 4841448 (1989-06-01), Ford
patent: 4935682 (1990-06-01), McCuen

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