slush/standing water takeoff or slippery runway takeoff
i always wonder when do i use the slush/standing water takeoff chart or slippery runway takeoff chart to calculate performace on B 737 NG
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Greetings,
Stop woundering each one has a very clear definition:} |
One is contaminated the other is slippery. Contamination affects acceleration..........
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Slippery runway = normal acceleration, slow deceleration (say, ice)
Contaminated runway = slow acceleration, possibly slow deceleration (snow/slush) |
Greetings
Mu is the friction coefficient, in case of slipery and/or slush it is near or equal to ZERO, so the braking force is also equal to ZERO. Contaminated, you can consider that you would have a small quantity of water (kind of very small wave) in front of your wheels, thus slowing down your Airplane, because you would have water density instead of air density. :ok: |
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