HKIE Professional Assessment - Aircraft Discipline Practice Questions - HKIE Professional Assessment - Aircraft Discipline (Hong Kong Institution Of Engineers) Exam

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An aircraft wing has a planform area S = 30 m² and produces a maximum lift coefficient C_L,max = 1.5. Assuming standard air density ρ = 1.225 kg/m³ and an aircraft mass of 4,500 kg (weight W = 44,145 N), what is the stall speed V_s in level flight?

40.0 m/s 49.0 m/s 55.2 m/s 65.0 m/s

Correct Answer:

40.0 m/s

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