Navigation aid for aircraft pilot

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(11)

EP 0 413 449 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	08.07.1992 Bulletin 1992/28

(43)	Date of publication A2:
	20.02.1991 Bulletin 1991/08

(21)	Application number: 90308119.8

(22)	Date of filing: 25.07.1990

(51)	International Patent Classification (IPC)⁵: G08G 5/00

(84)	Designated Contracting States:
	DE FR IT NL

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Priority:

18.08.1989 GB 8918896

(71)	Applicant: GEC-MARCONI LIMITED
	Stanmore, Middlesex HA7 4LY (GB)

(72)	Inventor:
	Palmer, Clive Alan Basildon, Essex SS14 1UG (GB)

(74)	Representative: Waters, Jeffrey et al
	The General Electric Company, p.l.c. GEC Patent Department Waterhouse Lane Chelmsford, Essex CM1 2QX Chelmsford, Essex CM1 2QX (GB)

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References cited: :

(54)	Navigation aid for aircraft pilot

(57) An navigation aid for the pilot of an aircraft comprises a data base 1 which contains information about location of airfields, a processor 2 for estimating the permissible aircraft range based on the fuel remaining and aircraft flight parameters, and a display 3 to indicate airfields that are within range. The aid is intended to assist the pilot in the event of an unforeseen problem.

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