Formulas

Question 1

VHF reception distance

Answer 1

1.23x square root of alt

Question 2

Distance to station formula

Answer 2

(GS x Time in minutes)/ degrees of bearing change

Question 3

Max payload

Answer 3

MZFW-BOW

Question 4

Centre of gravity shift

Answer 4

w/W = d/D

w = weight of object to move
W = Gross Weight of Aircraft
d = number of inches that the CG must be moved
D = Distance between cargo compartments

Question 5

Distance to critical Point

Answer 5

(D x Hr)/(Or + Hr)

D = Total Trip Distance
Hr = Reduced or 3 Engine Groundspeed Home
Or = Reduced or 3 Engine Ground Speed Out

Question 6

Specific Air Range

Answer 6

TAS/fuel flow

Question 7

Specific Ground Range

Answer 7

Ground speed/fuel flow

Question 8

Mach number

Answer 8

TAS/ S

S= speed of sound at flight temperature

Question 9

Angle of Bank for rate one turn

Answer 9

(TAS/10)+7

Question 10

Stall speed vs load factor

Answer 10

Normal stall speed x sucre root load factor

60degree bank = 2G
45degree bank = 1.4G

Question 11

Hydroplane speed non rotating tire (landing)

Answer 11

7.7 x square root tire pressure

Question 12

Hydroplane speed rotating tire (take-off)

Answer 12

9 x square root tire pressure

Question 13

Mean aerodynamic cord (MAC

Answer 13

Identify c of g in inches from datum
Identify leading edge mac
Subtract lemac from the cg location
Divide the difference by the length of mac
Multiply by 100

%mac=((cg-lemac)/mac)x100

Question 14

Speed of sound

Answer 14

38.94 x root temp in degrees kelvin

Question 15

How to calculate degrees kelvin

Answer 15

Degrees c plus 273