Title:
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Document Type and Number:
Japanese Patent JPS5195398
Kind Code:
A
Abstract:
In a system that compares the rate of descent of an aircraft with its altitude above ground and generates a warning signal when the sink rate exceeds a predetermined limit for a particular altitude, the maximum warning time is limited to a specified value in order to minimize nuisance warnings at higher altitudes. At a descent rate above a certain value, the excessive sink rate warning signal is inhibited for combinations of descent rates and aircraft altitudes which would provide a warning greater than a selected time to impact, such as 30 seconds.
Application Number:
JP249676A
Publication Date:
August 20, 1976
Filing Date:
January 13, 1976
Export Citation:
International Classes:
B64D45/04; G01C5/00; G01C21/00; G01C21/20; G05D1/06; G08G5/02; (IPC1-7): B64C13/10