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Determine sideslip angle for a steady level unaccelerated flight with [u, v, w] = [80, 2, 4.5].(a) 1.43(b) 5.4(c) 5(d) 12.32I got this question in a job interview.I'd like to ask this question from Lateral-Directional Static Stability and Control in division Stability, Control, and Handling Qualities of Aircraft Design

Answer»

Right CHOICE is (a) 1.43

Easiest explanation: GIVEN, v = 2, V = [u^2+v^2+w^2] ^0.5 = [80*80+2*2+4.5*4.5] ^0.5 = 80.1521.

Sideslip ANGLE = ARCSINE (v/V) = arcsine (2/80.1521) = 1.43°.



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