Originally Posted by
DaveReidUK
Out of interest, do you know if application of reverse idle (the subject of the thread) counted as an additional engine cycle ?
Very doubtful
In general engines care about EGT (time at) and RPM magnitude. The RPM equates to cyclic fatigue of the metal in the rotor-disks. This cyclic life equates mostly to the average flight max RPM (with a goodly amount of margin). So if the RPM in reverse approaches typical takeoff, then it probably counts towards fatigue life of some rotor parts