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Date: Mon, 15 Nov 2010 15:09:37 -0600
Message-ID: <AANLkTimMhA+1jBTeO=UxQk9MA+H00pKFSCv2tQOp-+Ru@mail.gmail.com>
Subject: Not enough pitch / Too much pitch
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Ed wrote, "7000 rpm static - WoW!  sounds like not enough pitch in the prop
to absorb the power - tough situation to be in - NOT!

Ed,

My initial statement of reaching 7k rpm may have been a meaningless as I
have a C/S prop.  So, I could set it to max fine pitch and probably reach 7k
rpm with a weed-eater engine.  However, these numbers were with the prop set
at 2200, IIRC.  I know there is a discrepancy between the M/T indicator and
the EM-2 readout.  Maybe I should loosen the set screw on the M/T controller
knob and move it so that the M/T setting = EM-2 RPM / 2.85.  This is
assuming that the M/T is the The prop is close to being due for a mandatory
overhaul, so I'll have them check it at that time, and re-calibrate the
knob.

Mark

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<div>Ed wrote, &quot;7000 rpm static - WoW!=A0 sounds like not enough pitch=
 in the prop to absorb the power - tough situation to be in - NOT!</div>
<div>=A0</div>
<div>Ed, </div>
<div>=A0</div>
<div>My initial statement of reaching 7k rpm=A0may have been a meaningless =
as I have a C/S prop.=A0 So, I could set it to max fine pitch=A0and probabl=
y reach 7k rpm with a=A0weed-eater engine.=A0 However, these numbers were w=
ith the prop set at 2200, IIRC.=A0 I know there is a discrepancy between th=
e M/T indicator and the EM-2 readout.=A0 Maybe I should loosen the set scre=
w on the M/T controller knob and move it so that the M/T setting =3D EM-2 R=
PM / 2.85.=A0 This is assuming that the M/T is the The prop is close to bei=
ng due for a mandatory overhaul, so I&#39;ll have them check it at that tim=
e, and re-calibrate the knob.=A0 </div>

<div>=A0</div>
<div>Mark</div>

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