An aircraft is flying with fuselage having length of 1.5m and fineness ratio of 15. At which maximum diameter fuselage should be designed?(a) 0.1m(b) 0.25m(c) 5m(d) 20.5mThe question was posed to me in a national level competition.My question comes from Geometry Sizing topic in portion Initial Sizing of Aircraft Design

An aircraft is flying with fuselage having length of 1.5m and fineness

1.	An aircraft is flying with fuselage having length of 1.5m and fineness ratio of 15. At which maximum diameter fuselage should be designed?(a) 0.1m(b) 0.25m(c) 5m(d) 20.5mThe question was posed to me in a national level competition.My question comes from Geometry Sizing topic in portion Initial Sizing of Aircraft Design
Answer» RIGHT choice is (a) 0.1m To ELABORATE: Given, fuselage FINENESS RATIO F=15, length l=1.5m Now, diameter D = l/F = 1.5/15 = 0.1m.

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