CPL performance equations

Question 1

The time to PNR from origin?

Answer 1

Safe Endurance * Ground Speed Home
——————————————————— =TIme to PNR
GS Out + GS Home

Question 2

ETI or CP From Origin

Answer 2

Total distance * GS Home
————————————- = Distance to CP
GS Out + GS Home

Question 3

Safe Endurance

Answer 3

              contingency fuel factor

Question 4

Climb gradient %

Answer 4

Rate of Climb (FPM)
% = —————————–
speed (KTS)

Question 5

Rate of Climb

Answer 5

Gradient % * Speed (KTS)

Question 6

Air Nautical miles per Gallon

Answer 6

Fuel Flow (gal/hr)

Question 7

Ground Nautical miles per Gallon

Answer 7

Fuel flow (Gal/hr)

Question 8

Specific Air Range

Answer 8

Tas

Question 9

Specific ground range

Answer 9

Ground Speed

Question 10

Weight to ADD

Answer 10

Required CoG - Compartment Arm

Question 11

Weight to SHIFT

Answer 11

Difference in Compartment Arms

Question 12

Find FORWARD limit

Answer 12

[Present Weight - 2360 (fwd limit)] *0.27 +2400

Question 13

% Mean aerodynamic chord

Answer 13

Current Arm - 2190 (location of leading edge)
——————————————————————- * 100
1900 (length of the chord)_

Question 14

ARM mm from %MAC

Answer 14

%mac
{——— * 1900} + 2190
100

Question 15

Floor loading

Answer 15

Force
——– = Unit/sq. mtr
area