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From: "Mark Steitle" <flyrotary@lancaironline.net>
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Date: Thu, 3 Jul 2014 12:53:12 -0500
Message-ID: <CAHh3jbNgNWJTeaFWme7E-tKs2usTKzHbuFFM1=vqP=TCnacAPQ@mail.gmail.com>
Subject: Re: [FlyRotary] Re: actual current use by a rotary?
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Charlie,

My 3-rotor, along with typical electrical devices running, needs 36 amps.
This includes EC-2, EM-2, 6 fuel injectors, 6 ignition coils, 1 fuel pump,
EFIS, auto-pilot, NavCom, Xpndr, strobes, and M/T Electric prop
controller.  Not sure what it needs just to keep the fan turning.  My guess
is that I could probably cut that figure in half by turning off the xpndr,
radio, strobes, EFIS, and trailing coils.  (It would be very interesting
trying to fly without the EFIS.)

Thanks,
Mark


On Tue, Jul 1, 2014 at 7:19 PM, steve Izett <flyrotary@lancaironline.net>
wrote:

> Hi Charlie
>
> I think these are in the ball park but not measured under flying
> conditions only idle.
>
> *ENGINE*
>
> *EC2                                          .3*
>
> *EM3                                         .5*
>
> *COILS (D585)                          5*
>
> *INJECTORS (Renesis)             2*
>
> *FUEL PRESSURE PUMP  x 1  8.4*
>
> *FUEL TRANSFER PUMP x 1  1.6*
>
> *O2 SENSOR                             0.6       *
>
> *Total Engine                            18.4*
> Steve Izett
>
> On 2 Jul 2014, at 5:08 am, Charlie England <flyrotary@lancaironline.net>
> wrote:
>
> Has anyone with an ammeter installed measured their engine's actual
> current draw (controller, injectors, plugs, fuel pump) with everything but
> the engine shut down, and the alternator offline? IIRC, Bernie Kerr once
> did a battery duration test & discontinued after ~40 minutes, but I don't
> recall seeing any actual current measurements.
>
> Thanks,
>
> Charlie
>
>
>

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Charlie,</div><div>=A0</div><div>My 3-rotor, along wi=
th=A0typical electrical devices running,=A0needs 36 amps.=A0 This includes =
EC-2, EM-2,=A06 fuel injectors, 6 ignition coils, 1 fuel pump, EFIS, auto-p=
ilot, NavCom,=A0Xpndr, strobes, and M/T Electric prop controller.=A0 Not su=
re what it needs just to keep the fan turning.=A0 My guess is that I could=
=A0probably cut=A0that figure=A0in half by turning off the=A0xpndr, radio, =
strobes, EFIS, and trailing coils.=A0 (It would be very interesting trying =
to fly without the EFIS.)</div>
<div>=A0</div><div>Thanks,</div><div>Mark</div></div><div class=3D"gmail_ex=
tra"><br><br><div class=3D"gmail_quote">On Tue, Jul 1, 2014 at 7:19 PM, ste=
ve Izett <span dir=3D"ltr">&lt;<a href=3D"mailto:flyrotary@lancaironline.ne=
t" target=3D"_blank">flyrotary@lancaironline.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div style>Hi Charlie<div><br></div><div>I t=
hink these are in the ball park but not measured under flying conditions on=
ly idle.</div>
<div><br></div><div>














<p class=3D"MsoNormal"><b><i><u><span style=3D"font-family:Calibri">ENGINE<=
u></u><u></u></span></u></i></b></p><p class=3D"MsoNormal"><b><span style=
=3D"font-family:Calibri">EC2=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0 .3<u></u><u></u></span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"font-family:Calibri">EM3=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 .5<u></u><u></u></span></b></p><p clas=
s=3D"MsoNormal"><b><span style=3D"font-family:Calibri">COILS (D585)=A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 5<u></u><u></u></span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"font-family:Calibri">INJECTORS (Re=
nesis)=A0 =A0 =A0 =A0 =A0 =A0 =A02<u></u><u></u></span></b></p><p class=3D"=
MsoNormal"><b><span style=3D"font-family:Calibri">FUEL PRESSURE PUMP=A0 x 1=
 =A08.4<u></u><u></u></span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"font-family:Calibri">FUEL TRANSFER=
 PUMP=A0x 1 =A01.6<u></u><u></u></span></b></p><p class=3D"MsoNormal"><b><s=
pan style=3D"font-family:Calibri">O2 SENSOR=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 0.6=A0=A0=A0=A0=A0=
=A0 <u></u><u></u></span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"font-family:Calibri">Total Engine=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0 18.4<u></u><u></u></span></b></p>

</div><div>Steve Izett</div><div><br><div><div>On 2 Jul 2014, at 5:08 am, C=
harlie England &lt;<a href=3D"mailto:flyrotary@lancaironline.net" target=3D=
"_blank">flyrotary@lancaironline.net</a>&gt; wrote:</div><br><blockquote ty=
pe=3D"cite">
<div dir=3D"ltr">Has anyone with an ammeter installed measured their engine=
&#39;s actual current draw (controller, injectors, plugs, fuel pump) with e=
verything but the engine shut down, and the alternator offline? IIRC, Berni=
e Kerr once did a battery duration test &amp; discontinued after ~40 minute=
s, but I don&#39;t recall seeing any actual current measurements.<div>

<br></div><div>Thanks,</div><div><br></div><div>Charlie=A0</div></div>
</blockquote></div><br></div></div></blockquote></div><br></div>

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