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Old 18th Jun 2015, 16:35
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engineer ex 412
 
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Bell 412: ITT rise and RPM droop during takeoff

i have some technical questions regarding bell 412. ITT rise and both engines ITT having a difference of 50 degrees in normal condition and secondly RPM droop more than 2% during takeoff. My helis are operating at 5000ft ASL and 34-38 degrees OSL normally. need some help.
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