Air Navigation Computer

Abstract

The disclosed aviation navigation instrument is a flight computer for solving wind triangle problems by moving plots of crosswind and crosstrack component speeds to balance drift with crosswind. The instrument incorporates a base 50 which provides an indication of direction and various plates movable about the direction axis, the plates being transparent so the operator may read and compare the plots marked on the plates. Wind plate 40 is marked with a number of crosswind plots that indicate the crosswind component of given wind speeds over the full range of directions. Heading plate 20 is marked with a number of crosstrack plots that indicate crosstrack component of a given airspeed over a range of directions. Track plate 30 is marked with effective airspeed plots that indicate the effective airspeed for given airspeeds over a range of directions. The various plates incorporate indications of each plot's origin, and scales for reading opposing plots.

Dependencies are inferred from the claim text.