QUESTION 4 [20 marks] (a) Fighter aircrafts usually have a low aspect ratio. If we increase the payload of the fighter aircraft, will the wing load increase or decrease? What are the advantages of a low aspect ratio wing on a fighter aircraft? (8) (b) An aircraft design has a maximum weight 8,000 lbs. The wing load is 17lbs/ft. What is the (4) wing area? (c) The wing load of our aircraft is 20 lbs/ft. The gross weight of the aircraft is 2,400 lbs. The chord is 4 ft. What is the wingspan? (4) (d) If my aircraft had a gross takeoff weight of 2500 lbs and an engine power output of 275 hp, what is the power loading of the aircraft? (4)