Enter the planned fuel burn, max allowable landing weight, zero fuel weight, and fuel already on board to calculate the maximum fuel uplift.

Fuel Uplift Formula

The following equation is used to calculate the maximum Fuel Uplift.

MFUL = (FPFB+MALW) - ZFW - FAOB
  • Where MFUL is the maximum fuel uplift (kg)
  • FPFP is the flight planned fuel burn (kg)
  • MALW is the maximum allowable landing weight (kg)
  • ZFW is the zero fuel weight (kg)
  • FAOB is the fuel weight already on board (kg)

To calculate the fuel uplift, add together the flight planned fuel burn and maximum allowable landing weight, then subtract the zero fuel weight and, fuel weight already on board.

What is a Fuel Uplift?

Definition:

A fuel uplift, or maximum fuel uplift, is a measure of the total weight of fuel provided by a fuel supplier to an aircraft.

How to Calculate Fuel Uplift?

Example Problem:

The following example outlines the steps and information needed to calculate Fuel Uplift.

First, determine the flight planned fuel burn. In this case, the planned burn is 110,000 lbs.

Next, determine the maximum allowable landing weight. This is determined to be 310,000. lbs.

Next, determine the zero fuel weight. This is found to be 240,000 lbs.

Next, determine the fuel already on board. In this example, there is only 25,000 kg on board.

Finally, calculate the maximum fuel uplift.

MFUL = (FPFB+MALW) – ZFW – FAOB

MFUL = (110000+310000) – 240000 – 25000

MFUL = 155,000 lbs

FAQ

What factors can affect the maximum fuel uplift calculation for an aircraft?

Several factors can influence the maximum fuel uplift calculation, including aircraft weight limits, fuel density variations due to temperature, the anticipated weight of cargo and passengers, and regulatory requirements for reserve fuel.

How does the zero fuel weight (ZFW) impact an aircraft’s performance?

The zero fuel weight (ZFW) is critical for calculating the aircraft’s performance, as it directly affects the takeoff and landing distances, climb performance, and fuel efficiency. A higher ZFW can lead to reduced range and increased wear on the aircraft.

Why is it important to accurately calculate the flight planned fuel burn (FPFB)?

Accurately calculating the flight planned fuel burn is essential for ensuring flight safety, optimizing fuel consumption, and minimizing operational costs. It helps in planning for sufficient fuel to reach the destination, including reserves for unexpected situations.