Aeronautic Instruments. Section VI : Aerial Navigation and Navigating Instruments (1923)
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tersect (AC) at (P), thus determining the second side of the velocity triangle representing the ground speed. The closing side (OP) represents the wind. (P) is called the "wind point" and the diagram is called a "wind star." In designing an instrument to use the method just described, it is… … (C) O Wind R it as above described, Fig. 6.—WTind star diagram, A ground-speed attachment is also combined with this bearing plate. It consists of a vertical arm as described for the aero bearing plate and two horizontal wires, each carrying two head sights. One of these wires irives a base line on…
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