Patent ID: 6175315
Filing Date: 2001-01-16
Classification: G01D,G01P

Abstract:
An instrumentation system for use in aircraft, during the takeoff roll from standstill to V1 speed, that continuously displays a target airspeed at which the aircraft should be if it is meeting the acceleration required to be at V1 at the anticipated distance,wherein a related computer with a database stores information on curves of takeoff acceleration graphs of the type and model of said aircraft with respect to speed versus time on said takeoff roll as well as distance;an actual airspeed display continuously displaying the actual speed of said aircraft wherein, during the takeoff roll up to V1 speed, said computer continuously controls the progressive movement of target airspeed display in said actual airspeed display, to display the target speed at which the aircraft should be if it is meeting the computer-stored acceleration curve based on time;and a display for continuously displaying the computed distance that said aircraft is currently lagging behind when said actual speed is less than said speed at which said aircraft should be if it is meeting said computer-stored acceleration curves.