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Old 26th March 2020 | 03:59
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Dave Therhino
 
Joined: Jan 2013
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From: Seattle Area
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Quote: Doesn’t the EEC monitor the engine and send signals to the HMFCU to provide a uniform rise in EGT which is designed to avoid hot starts?

The EEC on the CFM56-7B series engine during start is fueling the engine to achieve a scheduled target rate of N2 acceleration, as limited by minimum and maximum fuel flow vs burner pressure schedules (minimum to prevent lean blowout, and maximum to prevent compressor stall). Unlike the autostart features of the engines on the wide body Boeing airplanes, it does not reduce fuel flow based on high EGT as far as I know. Maybe tdracer can confirm this.
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