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  • colin
    replied to Vmbe
    VMBE cannot be a fixed IAS. VMBE is based upon mass, slope, wind, PA and temp. As the mass increases it's harder to stop so the VMBE limit is decreased. Likewise with a downslope and a tailwind. An increase in PA and temp increases the TAS and the GS increases. When it's hot and high you'll probably...
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  • colin
    replied to Question ID: 320495
    When the TODR = ASDR you have a balanced take-off and thus a balanced V1.If you choose a higher or lower V1 then the take-off will not be balanced. A higher V1 decreases the TODR but increases the ASDR. A lower V1 increases the TODR but decreases the ASDR.
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  • colin
    replied to Question ID: 320524
    The first action is taken at V1. In calculating the ASD it is assumed that the aircraft speed at V1 is maintained until 2 secs after V1 at which point the deceleration and stopping takes place. In that 2 second period the rest of the rejected take-off actions are completed.
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  • colin
    replied to Question ID: 310375
    If you only moved it 6 rows you will still be outside the aft limit! So you have to move 7 rows.
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  • colin
    replied to Lrjt m@b
    You're absolutely right! I'll get support to switch the answer annexes.Thanks.
    These loadsheets are notoriously fickle so do the best you can with the given data. Hopefully you won't see any in the exams....
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  • colin
    replied to Question ID: 320495
    We have a balanced field where TODA = ASDA . We can also have a balanced field take-off where the TODR=ASDR.
    V1 is defined as the maximum speed to reject the take-off and stop within the ASDA or the minimum speed during take-off following the failure of the critical engine at VEF at which the...
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  • colin
    replied to Lrjt m@b
    The RLTOM is the lowest of the PLTOM or the structural limited TOM. In this case the structural limit TOM is 62800kg and the PLTOM is 60400kg. So we must use 60400kg.
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colin
colin
Bristol Instructor
Last Activity: 22-03-2017, 15:37
Joined: 27-07-2004
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