Contingency Fuel

Question 1

Point of equal time

Answer 1

Point along a route which it takes the same amount of time to fly onwards to the destination as it does to turn around and return to departure airfield

Question 2

Formula For Point Of Equal Time (PET)

Answer 2

Distance x Home Groundspeed
——————————————-
Outbound GS + Home GS

Question 3

Formula For Point Of Safe Return (PSR)

Answer 3

Endurance x Home GS
——————————
Outbound GS + Home GS

Question 4

How does wind affect the point of equal time

Answer 4

Point of equal time moves into wind
If there is a headwind for New York To London the point of equal time will be closer to New York

Question 5

Point Of Safe Return Is Defined As

Answer 5

The point beyond which there is not enough fuel to return to departure aerodrome and land with the required final reserves

Question 6

Reasons for fuel checks

Answer 6

To ensure sufficient fuel remains to complete route under law regulations

Question 7

Which is not a reason for deviations of actual fuel consumption compared to planned consumption

Answer 7

Change to arrival runway during the cruise