{
  "$type": "site.standard.document",
  "description": "The present application discloses a computer implemented method (4090) of determining a fleetwide fuel allocation for a plurality of missions carried out by a plurality of aircraft, the plurality of missions being supplied with fuel from a fuel source comprising an amount of a default fuel and an…",
  "path": "/patents/1396300",
  "publishedAt": "2025-11-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C7/22",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "The present application discloses a computer implemented method (4090) of determining a fleetwide fuel allocation for a plurality of missions carried out by a plurality of aircraft, the plurality of missions being supplied with fuel from a fuel source comprising an amount of a default fuel and an amount of a non-default fuel, the fuel allocation indicating the amount of the non-default fuel and the default fuel to be allocated to each of the plurality of missions, the default fuel and the non-default fuel having one or more fuel characteristics different from each other. The method comprises the following steps: obtaining (4092) an initial proposed fuel allocation for each of the plurality of missions; performing (4094) a fleet-wide optimisation in which the proposed fuel allocation of each of the plurality of missions is modified within the constraints of the total available default and/or non-default fuel from the fuel source to minimise a sum of per-mission nvPM impact parameters over all of the plurality of missions, each of the plurality of missions being associated with a respective per-mission nvPM impact parameter determined according to a fuel usage for that mission, the fuel usage defining how the fuel allocation for the respective mission is to be used during that mission; and determining (4096) the fleetwide fuel allocation for the plurality of missions based on the fleet-wide optimisation. Also disclosed is a method (4100) of loading fuel onto a plurality of aircraft, a non-transitory computer readable medium and a fleetwide fuel allocation determination system (5100).",
  "title": "FLEET FUEL ALLOCATION"
}