Boots – shoes – and leggings
Patent
1982-03-18
1984-06-12
Ruggiero, Joseph F.
Boots, shoes, and leggings
73178T, 244183, 340972, 364428, 364433, G06F 1550, G01C 2100
Patent
active
044545827
ABSTRACT:
A method and apparatus for determining the time remaining for maximum control action to be taken in order to achieve a desired objective (i.e., the chronodrasic interval) is disclosed. The method and apparatus continuously determines the amount of a parameter (e.g., runway distance) required to achieve a desired objective (e.g., stopping an aircraft before reaching the end of a runway on landing or accelerating an aircraft so that it reaches rotation speed before reaching the end of a runway on takeoff) if maximum control action is applied. The method and apparatus also continuously determines the total amount of the parameter remaining. The chronodrasic interval is then determined by deducting the amount of the parameter required to achieve the desired objective if maximum control action is taken from the total amount of the parameter remaining; and, dividing the result by a preselected (e.g., present or maximum) rate of change of the parameter. The value of the chronodrasic interval, if below a predetermined value, is applied to a display to provide interactive information adapted to apprise a human operator of the need to take control action and the effectiveness of the control action taken. Alternatively, the value of the chronodrasic interval can be used to automatically regulate the amount of control action taken.
REFERENCES:
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Cleary Patrick J.
Hopperstad Craig A.
Ruggiero Joseph F.
The Boeing Company
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