BAK - Principles of Flight (Intro to Flight)

Question 1

What is aircraft weight balanced by in straight and level flight?

Answer 1

lift

Question 2

What is the speed and direction of airflow past a wing referred to?

Answer 2

relative airflow

Question 3

What is the name of the force that has lift and lift-induced drag as its component parts?

Answer 3

total reaction

Question 4

What is the straight line distance between the leading and trailing edge of a wing refered to?

Answer 4

chord

Question 5

What is the thickness/ curvature of a wing referred to?

Answer 5

camber

Question 6

What is the angle between the chord line of an aerofoil and the relative airflow referred to?

Answer 6

the angle of attack

Question 7

Some wings are ‘twisted’ so that the angle of attack is greater at the wing root that at the wing tip. What is the twist referred to?

Answer 7

washout

Question 8

What point or location on the aerofoil does the weight force act through?

Answer 8

centre of gravity (CoG)

Question 9

The Centre of Pressure is the point on the aerofoil through which force acts through?

Answer 9

total reaction

Question 10

Does the atmospheric pressure surrounding the aircraft, increase or decrease with height?

Answer 10

decreases

Question 11

What is the atmospheric pressure surrounding an aircraft that decreases with height known as?

Answer 11

static pressure

Question 12

Total pressure is the sum of the static and dynamic pressure. What is static pressure otherwise known as?

Answer 12

pitot

Question 13

True or False, dynamic pressure is the ‘extra pressure’ that surrounds an aircraft due to the movement of air past the aircraft?

Answer 13

true

Question 14

True or False, air density decreases as height increases and depends upon both the static pressure and temperature?

Answer 14

true

Question 15

Is indicated airspeed (as shown as knots rather than pressure units on an airspeed indicator) a measure of static or dynamic pressure?

Answer 15

dynamic pressure

Question 16

Is calibrated airspeed the ‘true’ or ‘indicated’ airspeed corrected for instrument and pressure errors?

Answer 16

indicated airspeed

Question 17

What is the actual (or real) speed of aircraft travelling through air referred to?

Answer 17

the ‘true’ airspeed

Question 18

What is the ‘true airspeed’ plus the tailwind component minus the headwind component known as?

Answer 18

ground airspeed / groundspeed

Question 19

What are the wings said to exhibit if the wing tips are behind the leading edge of the wing roots?

Answer 19

sweepback

Question 20

What type of wings does an aircraft exhibit if the wing tips are higher than the wing roots?

Answer 20

dihedral

Question 21

Other factors being equal, do thick wings produce more or less lift AND drag than thin wings?

Answer 21

more - both lift and drag

Question 22

What is the imaginary straight line joining the leading and trailing edge of an aerofoil referred to?

Answer 22

chord line