Rotax Europa best cruise revs

cdrewett · Post by **cdrewett** » Wed Dec 21, 2011 11:59 am

Flying the monowheel yesterday I did some experimenting with our newly fitted vp prop. Setting 25 inches manifold pressure I gradually coarsened the prop until I got best speed. This turned out to be 120kts at 4100rpm.
Does this mean this is the best rev setting for the Rotax or is it getting a bit stressed at these revs?
Chris

Rod1 · Post by **Rod1** » Wed Dec 21, 2011 7:27 pm

Running it at 4100 rpm is very bad for the engine. Aim for 4800 min.

Have you done a flight test to check if she will fly a go round at max pitch?

Rod1