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Thread: Using engine anti-ice when dewpoint spread 3 degrees or less
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Old 2nd Nov 2007, 19:53
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Rainboe
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Join Date: Jan 2005
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I have never seen this. My B737 Operations manual says no such thing. Previously my B747 Flying Manuals for RB211 and P&W models (747-100,-200 and -400) had no such definition. Simply +10C and below and visibility 1500m or less with visible moisture. I have never heard this 3 degree split mentioned.
I'm not saying it is wrong, but no engines are experiencing any problems when not operated that way!
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