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Fuel Costs Fields

Note: The following descriptions represent the typical access and privileges afforded to users designated as Dispatch Managers/Supervisors. Users with dispatcher privileges will have limited access to a subset of the screens presented.

Add / New

Station ICAO: Enter the ICAO, IATA, or FAA code for the airport. The remaining information on the entry line will be filled in. and if a fuel cost record already exists for this station. it will be displayed as well. To make changes to an existing record, use the Edit mode.

Identifier: A unique, user-provided identifier for a user-defined value used in the fuel cost interface, to allow you to designate different prices per city pair. The unique identifier for the fuel cost can be added at any time before triggering the SAVE option. Note that a Fuel Cost record with a BLANK Identifier will be viewed as the default fuel cost for that station. If a Fuel Cost record with a BLANK Identifier is not found, the system uses the default fuel cost from Airline Code Parameters until a different cost is selected.

Date Updated: This field is for display only and is filled in automatically with the current system date in ddmmyy format.

Effective Date: Enter a date the information becomes effective.

Available: Enter whether fuel is available at the station <Y> or <N>.

Increments: Choose whether to indicate that the cost should be calculated incrementally or as a total. Use this to address airports that charge a different price for different increments of fuel uplifted. See Fuel Increments for more information.

Supplier: Enter the name, phone number, etc., of the fuel supplier for your company at this airport.

Quantity in USG: The first value is automatically filled in as a zero <0>, and the cursor is positioned on the upper limit field for the first volume range. Enter a value in US gallons, for the first range, or if there is only one range with no price break by volume purchased, press <Enter> and the program will insert the default value of 999999. Upon entering the domestic and bonded fuel prices as described below, you may enter up to five more ranges; the upper limit for the previous range automatically becomes the lower limit for the next range, in any event, the upper limit for the last range has to be the default value.

Fuel Density: Enter fuel density, units and volume.

Domestic: Enter the unit price of fuel for the range. Up to six places of decimal may be used.

Bonded: Enter the unit price for bonded fuel for the range if you do not have a bonded price available. the bonded price will be, by default’ the same as the price entered for domestic fuel.

Fuel Handler: Enter the name. phone number, contact, etc., for the agent who handles the fuel for your company at this station.

Low Quantity Fuel Limit / Surcharge - these fields let you set a low quantity fuel limit and a surcharge on the fuel. If the ramp fuel is below the amount set, the fuel price increases by the amount in the Surcharge field. These values are taken into account in tankering calculations/decisions. The fields are called Low Qty and Surcharge on the FOMS 130 menu.

Remarks: Enter any other pertinent information concerning fuel. prices, or handling at this station.

When you have completed your entries, a confirmation prompt will appear, allowing you the option of saving, editing, or aborting the record.

Fuel Increments

 Click the Increments checkbox.

In order to add in different pricing, the Increments box must be checked.

 Click the Bracket Maximum input field.

From here you will enter the quantity and fuel pricing.  You will only need to fill out the Bracket Maximum, Domestic, and Bonded.

 Enter 9 into the 99999 field.

When you are finished, be sure the last row is "999999" so it knows there are no additional costs.

Once you select Save, the Bracket Minimum fields will auto populate based on your entries.

In standard billing, if we had 4000lbs of fuel, then the cost would be calculated as 4000 * 1.50.

In incremental billing, if we had 4000lbs of fuel, then the total cost would be calculated as (1000 * 2.00) + (3000*1.50).

Fuel Density by station

Enter a fuel density value along with a weight unit and a volume unit per station in Fuel Costs (webFOMS or FOMS) screen. If you use the Fuel Costs menu you are setting a value for that station only.

Fuel Density by Default – All Stations

Enter a fuel density value along with a weight unit and a volume unit per station in the Airline Code Parameters (webFOMS or FOMS) screen. If you use the Airline Code Parameters menu you setting a value for all stations.

Impact of Fuel Density On Uplift

If the volume of the tanks in the aircraft are specified, then the specific gravity can affect fuel uplift capabilities as a result of the variable density.

Main Parameter file default – All NFP customers

The default value for Fuel Density is set at 6.6611.

Invalid fuel density entries

The N-FP system does not allow invalid entries in either Aircraft Characteristics or Airline Code parameter databases.


How does fuel density impact the flight plan?

Fuel density changes directly impact the fuel weight/tank capacity. Changes in fuel density values may have an impact on the following:

  1. Extra fuel available when using max tanker (always cognizant of max fuel uplift)
  2. Lower fuel density values may reduce the maximum fuel uplift weight, negatively impacting range and take-off weights
  3. Direct Operating Costs – fuel cost differences


Why change the fuel density?

Fuel density is impacted by the following factors:

  1. Field elevation
  2. Outside Air Temperature (OAT)


Expected flight plan results

Under normal circumstances, you won't see any difference in fuel burns even when the fuel density value has been changed. The aircraft performance at weight/ISA/FL remains unaffected by fuel density changes, but the ability to tanker up to max fuel uplift (if structural weights allow) may be limited.

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