Rotax CSU Operation
Flying a Katana DV20, with CSU, but I think the question applies to all CSU pistons.
Regarding its operation,
I know that in a climb we should put the RPM at MAX, or at max continuous RPM, and then full throttle.
In a descent, I am wondering which is the correct way to fly it.
1)Increase the RPM Max (or near max), and then reduce throttle MP as required?
2)Or first reduce throttle MP as required and then increase RPM? (or leave the RPM as required depending on what descent you want)
Tought by an instructor to do the first way, allthough in my understanding of engines, my way was firstly reduce the throttle MP as required (for a fast cruise descent with 500fpm lets say half the MP), and leave the RPM in the cruise setting, in which after some time before landing I bring the RPM to MAX.
Instructor told me that in the 2nd way the engine "cannot handle" this RPM, and that I should allways bring RPM Max or near max and after that adjust the throttle MP as required.
Flight manual is not as clear as I wanted to.
Can anyone clarify please?
Last edited by Lantirn; 5th Apr 2013 at 14:27.