Question

If an aircraft has three components which can be considered as vulnerable components then, evaluate total vulnerable area. Given area of component 1, 2 and 3 are 5ft^2, 4ft^2 and 80ft^2 respectively with Pk as 1, 0.5 and 0.3 for component 1, 2 and 3 respectively.

(a) 31ft^2

(b) 50ft^2

(c) 10ft^2

(d) 4ft

The question was posed to me in my homework.

This key question is from Configuration Layout topic in section Configuration Layout Considerations of Aircraft Design

Answer 1

The correct choice is (a) 31ft^2

Easy explanation: Given, part 1: area a1=5ft^2, pk1=1

Part 2: area a2=4ft^2, pk2=0.5

Part 2: area a3=80ft^2, pk3=0.3

Total vulnerable area = a1*pk1 + a2*pk2 + a3*pk3 = 5*1 + 4*0.5 + 80*0.3 = 5+2+24 = 31ft^2.