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Question 9.12: Consider an acrobatic aircraft with a mass of 1500 kg diving...

Consider an acrobatic aircraft with a mass of 1500 kg diving with a velocity of 100 knot.

a. If the aircraft pulls out of the dive with a radius of 150 m, determine the load factor.
b. If the maximum allowable load factor is 6, determine the minimum radius for a pull-out of this dive.

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a. Load factor

n=\frac{V^2}{Rg}+1=\frac{(100\times 0.541)^2}{150\times 9.81}+1 \Rightarrow n=2.8\quad \quad \quad \quad (9.158)

b. Minimum radius

R_{\min}=\frac{V^2}{g(n_{\max}-1)}=\frac{(100\times 0.541)^2}{9.81\times (6-1)}=54\space m\quad \quad \quad \quad (9.157)

The minimum radius for this pull-out is 54 m.

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