---- Hartmut Beil <[email protected]> wrote:
>
> "Gross weight was approximately 1300 lbs airspeed indicates about 95mph which
> checks out pretty close with GPS Climb is pathetic"
>
>
>
> Ok. The fact that you are low on climb indicates your engine has a problem.
>
>
>
> 95 in cruise is also not what to expect on a C-85. Of course, you ASI could
> be off.
>
>
>
> But 2350rpm max and 95 MPH plus marginal climb all together indicate a low
> performer.
>
>
>
> Now, why is that?
>
>
>
> Was the airplane always performing that bad?
>
>
>
>
>
> Hartmut
>
> Yes it has always performed poorly the only difference was the old tach
> showed redline rpm 2575
>
> To: [email protected]; [email protected]
> From: [email protected]
> Date: Fri, 9 Oct 2009 12:51:59 -0700
> Subject: RE: [ercoupe-tech] Prop pitch
>
>
>
>
>
>
> ---- Ed Burkhead <[email protected]> wrote:
> >
> > > > Was wondering what the majority are using for prop pitch
> > > > on c-85 engines I have a 71-50 prop It only turns 2350 RPM
> > > > at full throttle cruise below 3000 ft. This is with a new tach
> > > > and checked with two separate hand held tach checks.
> >
> >
> > And, it's possible your prop is not really a 7150 in spite of what your
> > papers or markings say.
> >
> > You might want to check that, too.
> >
> > What is the aircraft gross weight when you only got "2350 RPM at full
> > throttle cruise below 3000 ft."? I ask this because I've seen or heard of
> > planes that had a coarse pitch prop and couldn't get to either high rpm or
> > normal cruise speeds.
> >
> > Ed
> >
> >
> Gross weight was approximately 1300 lbs airspeed indicates about 95mph which
> checks out pretty close with GPS Climb is pathetic
>
>
>
>
>
>
>
>
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