My 2 cents regarding low rpm operation:
I have found that my mono, with a fixed pitch DUC prop, is a fun airplane when
happily cruising at over 5000 rpm (generally at 5200) at altitude and no
turbulence.
But when doing local hops at low altitude and a little turbulence it is no fun
at all since at anything near 5000 rpm its is over 130 kias and its a harsh
ride.
So I made the decision to enjoy the plane and just throttle back to anything
between
4600 to 4900 rpm depending what my spine tolerates. I just feel for any
spot where there is an increase in vibration and stay out of it. If the gearbox
will need work in the future so be it.
On x-country trips though I am higher and have proper cruise rpm.
Is this good or bad I dunno. I was told that its not an issue. Time will tell
but
for now I am prioritizing enjoyment.
I will however take a little pitch of the prop to improve initial climb when
heavy
and warm but not much. Not really willing to give up that nice 135 knot cruise
I get now :)
Best Regards,
Chris
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