Soooo!
After all that, the advice remains;
For fixed pitch propellers (including ground adjust) - setting pitch to get a
minimum 5200 rpm Static - will give you 5200 rpm on initiating take off (WOT)
with the engine speed climbing as air speeds increases. Adjust climb angle to
keep engine rpm below red line.
Cruise Climb & Cruise should be at a minimum of 5200 rpm.
I a nut shell - Rotax 91 engines thrive on /love rpm - you are not doing them
any
favours operating below the Rotax recommended engine speeds.
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