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; V = , N = P ∙ V . P V H , ΔP = P P . ΔN = N N . , ,( ) V y (Vy = ). (Vy max) V (V = 74 knots) H = 0 V = 72 knots H, Cessna; 187 = 0 175 = 500 18; max (62 67 Cessna 172). ΔP (V) ΔN (V) .
, Cessna 172 62 . 1 2 V . .. . Cy ( ) S, G , (α - ) .
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