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Idle thrust

Scheduled Pinned Locked Moved F28 Professional
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  • F Offline
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    flykorni
    wrote on last edited by
    #1

    Hi!

    Not exactly sure about that, but isn't the idle thrust a bit too much? Releasing the brakes, the plane starts rolling without any thrust input, even on high TOWs. Again, as I've no experience with the real deal here I only can imagine what it should be like...

    Best regards, Wolfgang

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    piedmonitor
    wrote on last edited by
    #2

    I can't speak for the F28 from first hand knowledge but it is not uncommon for airline aircraft to move at idle thrust with the brakes off. Narrow body Airbuses with IAE engines in particularly are noteworthy for their idle thrust taxi speed.

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    tupolevCZ
    replied to piedmonitor on last edited by
    #3

    @piedmonitor I'm not sure that the 31kN RR Spey motors have a lot of thrust. But I'm not an F28 pilot, and you're right that there are many aircraft that roll with engine idle. However, in the case of the F28, I believe that the ground behaviour at engine idle is not correct. In my +100 flights with the F28 with various loads, I have not noticed a change in the behavior of the aircraft with the engines on idle.

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    PapaFox85
    wrote on last edited by PapaFox85
    #4

    Flight handbook manual says to slightly increase power to initiate rolling and back throttle to idle when taxi speed is reached. When aircraft is low weight, it could be need to use wheel brake to reduce speed.
    Thrust power of the RB 183 mk 555–15P (F28-4000) is 9900lbs/4.41daKN, and 9850lbs/4.39daKN for the -15 (F28-1000)

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    tupolevCZ
    replied to PapaFox85 on last edited by
    #5

    @papafox85 OK THX for info.

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