Equations

Question 1

Theoretical drag

Answer 1

Dynamic pressure x surface area

p/2 x v^2 x A

Question 2

Theoretical lift

Answer 2

Dynamic pressure x surface area

p/2 x v^2 x A

Question 3

Coefficient of lift

Answer 3

Measured lift / theoretical lift

Question 4

Coefficient of drag

Answer 4

Measured drag / theoretical drag

Question 5

Actual lift

Answer 5

Coefficient of lift x dynamic pressure x surface area

Question 6

Actual drag

Answer 6

Coefficient of drag x dynamic pressure x surface area

Question 7

Lift to drag ratio

Best glide ratio

Answer 7

Coefficient of lift / coefficient of drag

Question 8

Thrust

Answer 8

D + Wsin(theta)

Question 9

Lift

Answer 9

Wcos(theta)

Question 10

Taper ratio

Answer 10

Tip chord / root chord

Question 11

Power

Answer 11

Work / time

Question 12

Acceleration

Answer 12

Change of speed / time taken

Question 13

Aspect ratio

Answer 13

Wing span / average chord

Question 14

Work

Answer 14

Force x distance

Question 15

Bernoulli’s equation

Answer 15

Ptot = p + q

Question 16

Wing area

Answer 16

Wing span x chord

Question 17

Speed

Answer 17

Distance / time

Question 18

Continuity equation

Answer 18

V1 x A1 = V2 x A2

Question 19

Mach number

Answer 19

Speed of the aircraft / speed of sound

Question 20

Speed of sound

Answer 20

a = 20 x square root T

Question 21

Pressure

Answer 21

Force / area

Question 22

Dynamic pressure

Answer 22

q = p/2 x v^2

Question 23

Force

Answer 23

Mass x acceleration

Question 24

Weight

Answer 24

Mass x gravitational acceleration

Question 25

Static pressure

Answer 25

Height x density x gravity