Abstract: The present disclosure is generally directed to a method of generating and displaying a parachute flare drift vector symbol on a navigation display of the aircraft capable of deploying a flare relative to a real-time navigation map. The flare drift vector symbol includes a flare ignition forward/aft distance relative to the aircraft deploying the flare, a flare ignition left/right distance relative to the aircraft deploying the flare, a flare burn vector distance, and a flare burn vector direction. The flare drift vector symbol is generating based on the flare parameters, the wind parameters, the flare drift distance, the flare drift direction and the aircraft parameters.

Abstract: The present disclosure is generally directed to a method of generating and displaying a parachute flare drift vector symbol on a navigation display of the aircraft capable of deploying a flare relative to a real-time navigation map. The flare drift vector symbol includes a flare ignition forward/aft distance relative to the aircraft deploying the flare, a flare ignition left/right distance relative to the aircraft deploying the flare, a flare burn vector distance, and a flare burn vector direction. The flare drift vector symbol is generating based on the flare parameters, the wind parameters, the flare drift distance, the flare drift direction and the aircraft parameters.

Abstract: A card reader for a viewdata terminal such as PRESTEL in which a code in the card is read and used to enable access to the viewdata computer and to charge the appropriate account for use of the viewdata system. The reader detects voltage signals from capacitive couplings between electrodes in the card and in the reader assesses whether they are greater or smaller than a reference level to give binary 1 or binary 0 and compensates for capacitance variations by means of a "dummy" cell which adjusts the reference. Any variations in the signals caused by dirt et cetera affects the dummy cell equally and hence adjusts the reference accordingly. The reader operates in the static mode.