Theory of Flight

Question 1

What is parasite drag

Answer 1

drag caused by parts of the plane not contributing to lift

Question 2

what are the 3 types of parasite drag

Answer 2

form drag
skin friction
interference drag

Question 3

what is form drag

Answer 3

drag created by the shape of the body as it resists motion through air

Question 4

what is skin friction

Answer 4

air flowing over a body that tends to cling to its surface

Question 5

what is interference drag

Answer 5

drag created by areas where parts meet at a right angle (wing to fuselage, etc.)

Question 6

what play happen to the load factor if there is sudden movement in a steep angle bank?

Answer 6

the load factor may exceed design limits

Question 7

What happens to centre of pressure as angle of attack increases

Answer 7

moves forward

Question 8

what is aspect ratio

Answer 8

wing’s span divided by wing’s chord

Question 9

high aspect ratio

Answer 9

low induced drag, high parasite drag

Question 10

what do flaps do to camber

Answer 10

increase camber and therefore lift

Question 11

how to calculate stall speed in a turn

Answer 11

Vs turn = Vs x square root of load factor