Originally Posted by
JimEli
Yes.
Dependent upon engine version.
Two charts and a table are utilized to make the determination, there is no +/- %, a check is simply pass/fail. And there are two components to a complete check, TRQ and T4 margin. Furthermore, to my knowledge, under newer versions of the VEMD software, an INCORRECT check is always failure. With older versions of software, you can manually determine an allowance for an INCORRECT T4 MARGIN, but not an INCORRECT TRQ MARGIN. However, in all cases, when computing the EPC manually, one calculates a corrected T4 value. Beyond that, the conditions under which the check were performed are needed to help determine pass/fail.
Oh, and if there is an IBFS installed, it's RFMS probably alters the RFM procedure in some manner.
You kind of answered by not answering.
At least for me being a dumb pilot.
Lets make a practical example
torque tot margin 16.4% on a H125
what do I get from this? The more margin the better?