Discussion
An aircraft of \( 400 \) kN weight is in a 45 degree banked level turn. The lift required is nearest to
Answer: D
The load factor is \( 1/\cos 45^\circ = 1.414 \), so the lift is \( 1.414 \times 400 = 566 \) kN. The extra forty per cent must come from angle of attack, which is why a steep level turn requires both back pressure and additional thrust.
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