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Question ID: 330236 (and similar) - LRJT Total Fuel

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  • Question ID: 330236 (and similar) - LRJT Total Fuel

    This question (and there are a few very similar to it) reads:

    (Refer to the images)
    Given:
    Take-off mass: 150 000 kg
    Planned cruise at FL 350
    Long range MACH
    Standard Atmosphere (ISA)
    CG: 37%

    You have to cover an air distance of 2 000 NM.

    Your flight time will be (minutes):

    (a) 303
    (b) 359
    (c) 288
    (d) 298

    The given solution uses 150,000kg as the entry mass for the integrated cruise table. However, I was of the opinion that the integrated cruise tables required the *mass at start of cruise* to be used, in which case this would be 150,000kg less the climb fuel (2,100kg) = 147,900kg.

    Is this correct?
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