Contingency fuel is 5% of TRIP = 290kg, no time is allocated.

 290 kgs @ TRIP Fuel flow ( 2292 kgs / hr) = 7.6 mins

                                                ( 5800 / 2.530 = 2292 kgs / hr)

 Enter the time for Final Reserve fuel for a jet, 30 mins 

Insert these figures in the table

 

 

Fuel (kg)

Time (hh:mm)

Trip Fuel

Contingency Fuel

Alternate Fuel

Final Reserve Fuel

5800

290

1800

1325

2:32

 

0:42

0:30

Minimum T/O Fuel

Extra Fuel

 

 

Actual T/O Fuel

Taxi Fuel

 

200

 

Ramp Fuel

10000

 

 

Add the top line to find the

Minimum T/O Fuel = 5800 +  290  +  1800  +  1325  = 9215 kgs

Work the actual T/O fuel back from the ramp fuel

Actual T/O Fuel  =  Ramp Fuel  –  Taxy Fuel = 9800 kg

Therefore the “Extra Fuel”  =  9800  -  9215  =  585 kgs

585 kgs @ the given 2400 kgs / hr  = 0.244 hrs  =  14.6 mins

 

 

 

Fuel (kg)

Time (hh:mm)

Trip Fuel

Contingency Fuel

Alternate Fuel

Final Reserve Fuel

5800

290

1800

1325

2:32

0:07.6

0:42

0:30

Minimum T/O Fuel

Extra Fuel

9215

585

 

0:14.6

Actual T/O Fuel

Taxi Fuel

9800

200

 

Ramp Fuel

10000

 

           

So, TOTAL ENDURANCE  =  2:32 + 0:07.6 + 0:42 + 0:30 + 0:14.6 = 4:06.2,