Fuel System

Question 1

Question: How much fuel can be uploaded to the aircraft?

Answer 1

Answer: 49,400 lbs

Question 2

Question: What is the maximum amount of fuel when fueling over wing?

Answer 2

Answer: 43,650 lbs

Question 3

Question: What is the maximum imbalance while in-flight?

Answer 3

Answer: 2,000 lbs

Question 4

Question: How does fuel flow to the Hopper?

Answer 4

Answer: Through ejector pumps and flapper type check valves.

Question 5

Question: What is the maximum fuel imbalance for Takeoff?

Answer 5

Answer: 1,000 lbs Fuel Imbalance

Question 6

Question: When must the Fuel Boost Pumps be ON?

Answer 6

Answer: Select operable fuel pumps ON for all phases of flight unless fuel balancing is in progress.

Question 7

Question: How can you get the fuel in balance?

Answer 7

Answer: Cross Flow or Inter tank methods of balancing fuel.

Using the Inter Tank valve, stop fuel transfer when fuel is within 200 lbs or you may transfer too much fuel.

When balancing fuel through use of the crossflow valve, stop fuel transfer when fuel is within 50 lbs.

Balancing fuel using the intertank valve requires the airplane to be placed in a sideslip condition. Adjusting the rudder trim arrow in the direction of the “heavy” tank will create a slight wing down condition and allow fuel to flow toward the “light” tank.

Question 8

Question: What happens when REMOTE FUEL SHUTOFF switch is selected on the OHPTS?

Answer 8

Answer: Switch label turns green and BOTH pressure fueling shutoff valves close.

Question 9

Question: How is automatic refueling controlled?

Answer 9

Answer: From TSC or Refuel panel located in fueling station.