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Engine anti-ice on takeoff

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Engine anti-ice on takeoff

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Old 16th Dec 2016, 16:43
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Engine anti-ice on takeoff

Guys - Assuming ground OAT is +15c and my cloud ceiling is FL100 (where the oat is -4C), at what point do I turn on the Engine anti-ice? Is it prior to takeoff or during the climb?

Curious flight simmer, appreciate the help!

Darren
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Old 17th Dec 2016, 03:50
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If there are icing conditions on the ground you'll turn it on after engine start. If not, and your aircraft doesn't have an automatic setting for the engine anti-ice, you turn it on entering icing conditions. Many aircraft have a max temperature for operating anti ice systems and it will be less than 15c.
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Old 17th Dec 2016, 09:34
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Except on the Embraer 195 where use of the engine anti ice actually increased your MTOW.
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Old 17th Dec 2016, 10:08
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I can't remember the technical reasons as it's been over 6 years since I last flew one and it was all voodoo automatics anyway.

It was only a matter of 10 or 20 kilos but it definitely did increase it.

Perhaps FE Hoppy can clarify if he stumbles across this thread.
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