этапы отбора и ответы. Этапы отбора и ответы. REV2. Этапы отбора в Аэрофлот
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Drag polar (поляра ВС)https://en.wikipedia.org/wiki/Drag_polar The Drag Polar is the relationship between the lift on an aircraft and its drag, expressed in terms of the dependence of the drag coefficient on the lift coefficient. It may be described by an equation or displayed in a diagram called a polar plot. The drag polar of an aircraft contains almost all the information required to analyse its performance and hence to begin a design. The accompanying diagram shows a drag polar for a typical light aircraft. Such diagrams identify a minimum CD point at the left-most point on the plot. The point for greatest range is where the tangent to the polar curve passes through the zero reference point.  |