UAL114, a DC10/A with a proposed departure time of 1800, airspeed 440 knots, departing ELN to GEG via EPH V2 GEG. Which FP string is correct?

UAL114, a DC10/A with a proposed departure time of 1800, airspeed 440 knots, departing ELN to GEG via EPH V2 GEG. Which FP string is correct?

• A. FP UAL114 DC10/A 440 ELN P1800 330 ELN..EPH.V2.GEG
• B. FP UAL114 DC10/A P1800 440 330 EPH.V2.GEG
• C. AM UAL114 DC10/A P1800 440 330 ELN.EPH.U2.GEG
• D. FP UAL114 DC10/A P1800 440 330 ELN..EPH.U2.GEG

Answer: (B)

Flight plan strings follow a fixed sequence: FP, the flight identifier (airline and flight number), the aircraft type with operator suffix, the proposed departure time (P plus the time), the speed, the altitude, and then the route written with the first fix followed by any airways and destination. In this case, the proposed departure is 1800, so you place P1800 right after the aircraft type. The speed is 440 knots, and the cruising altitude is 33,000 feet, so you add 440 and then 330. The route starts at the first navigational point after departure, which is EPH, then the airway V2, ending at GEG, written as EPH.V2.GEG. The line also correctly uses DC10/A for the aircraft type/operator and UAL114 for the flight number, all preceded by FP. Other formats misplace elements or use incorrect route syntax: for example, putting the departure airport before the time or altering the airway to U2/A, or using AM instead of FP, would break the required order and routing convention. That’s why the correct string is the one that starts with FP UAL114 DC10/A P1800 440 330 EPH.V2.GEG.

Flight plan strings follow a fixed sequence: FP, the flight identifier (airline and flight number), the aircraft type with operator suffix, the proposed departure time (P plus the time), the speed, the altitude, and then the route written with the first fix followed by any airways and destination. In this case, the proposed departure is 1800, so you place P1800 right after the aircraft type. The speed is 440 knots, and the cruising altitude is 33,000 feet, so you add 440 and then 330. The route starts at the first navigational point after departure, which is EPH, then the airway V2, ending at GEG, written as EPH.V2.GEG. The line also correctly uses DC10/A for the aircraft type/operator and UAL114 for the flight number, all preceded by FP.

Other formats misplace elements or use incorrect route syntax: for example, putting the departure airport before the time or altering the airway to U2/A, or using AM instead of FP, would break the required order and routing convention. That’s why the correct string is the one that starts with FP UAL114 DC10/A P1800 440 330 EPH.V2.GEG.