Yes, Graham that's why mine is limited to 2900 RPM .
Regards
Bob H G-PTAG
----- Original Message -----
From: "Graham Singleton" <graham@gflight.f9.co.uk>
Subject: Europa-List: Jabiru
<graham@gflight.f9.co.uk>
>
> >Hi! Graham.
> >You make some valid points but the prop doesn't need to be in the
> >inefficient range if there is a CS prop or "wobbly" prop facility.
>
> Bob
> at 3,300 rpm the prop tips are getting close to the supercritical range,
> hence a lot of noise, and noise is wasted energy.
> Graham
>
>
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