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N320607 - USe of QNH

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  • N320607 - USe of QNH

    In this question they give the levels as altitudes:

    4600 (airfield)
    12000 (cruise)

    They also give a QNH 1033.

    I suspect it doesn't make much odds, since the change is fairly small and applied equally in both cases, but neither altitude is given as a PA, so why do we not use the QNH to correct the heights by 600 feet. Your worked answer ignores the QNH.
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