From: "David COOK hoursaway1@comcast.net" <flyrotary@lancaironline.net>
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Date: Sat, 12 Oct 2024 14:49:44 -0400 (EDT)
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message-ID: <838899899.462933.1728758984909@connect.xfinity.com>
In-Reply-To: <list-3618029@lancaironline.net>
References: <list-3618029@lancaironline.net>
Subject: Re: [FlyRotary] RV-9A w13B Update
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Cowl on for cooling tests. We had good #s with it off then found not enough=
 airflow with cowl on and had to add some out-venting to the bottom of the =
cowl with simple SS marine louvers. David

> On 10/11/2024 9:15 PM EDT Doug Lomheim rv9flyer13b@gmail.com <flyrotary@l=
ancaironline.net> wrote:
> =20
> =20
> I now have 4.2 hrs. of ground run time on the 13B I rebuilt in Feb/Mar, a=
nd will now drop the oil and replace with Mobile One and keep exploring the=
 upper limits of the power band!  I got a bit carried away today and pushed=
 it up to 25 inches, and had to go full rich, so will have to tweak the EC2=
 some more above 16 inches.  So far I=E2=80=99m very happy with the temps w=
hile doing the ground runs, and with OATs from 90-95 degrees, the max water=
 temp has been 178 degrees, and oil temp only 148.  I=E2=80=99ve been able =
to run 30 minutes straight without a cowling, without any temp issues, so a=
m wondering if I=E2=80=99m going to be too cool once I start flying it??  :=
) =20
> =20
> Doug=20
> =20
> [IMG_9906.jpg]
>=20

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  <meta charset=3D"UTF-8">=20
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  <div style=3D"font-size: 12pt; font-family: helvetica,arial,sans-serif; c=
olor: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;">Cowl on for coo=
ling tests. We had good #s with it off then found not enough airflow with c=
owl on and had to add some out-venting to the bottom of the cowl with simpl=
e SS marine louvers. David</span>
  </div>=20
  <blockquote type=3D"cite">=20
   <div>
    On 10/11/2024 9:15 PM EDT Doug Lomheim rv9flyer13b@gmail.com &lt;flyrot=
ary@lancaironline.net&gt; wrote:
   </div>=20
   <div>
    &nbsp;
   </div>=20
   <div>
    &nbsp;
   </div>=20
   <div class=3D"">
    <span class=3D"" style=3D"font-size: large;">I now have 4.2 hrs. of gro=
und run time on the 13B I rebuilt in Feb/Mar, and will now drop the oil and=
 replace with Mobile One&nbsp;and keep exploring the upper limits of the po=
wer band! &nbsp;I got a bit carried away today and pushed it up to 25 inche=
s, and had to go full rich, so will have to tweak the EC2 some more above 1=
6 inches. &nbsp;So far I=E2=80=99m very happy with the temps while doing th=
e ground runs, and with OATs from 90-95 degrees, the max water temp has bee=
n 178 degrees, and oil temp only 148. &nbsp;I=E2=80=99ve been able to run 3=
0 minutes&nbsp;straight&nbsp;without a cowling, without any temp issues, so=
 am wondering if I=E2=80=99m going to be too cool once I start&nbsp;flying =
it?? &nbsp;:) &nbsp;</span>
   </div>=20
   <div class=3D"">
    <span class=3D"" style=3D"font-size: large;">&nbsp;</span>
   </div>=20
   <div class=3D"">
    <span class=3D"" style=3D"font-size: large;">Doug&nbsp;</span>
   </div>=20
   <div class=3D"">
    &nbsp;
   </div>=20
   <img id=3D"<FF2E7F11-C6BD-4199-91CB-E42F60AC1DB4>" class=3D"Apple-web-at=
tachment Singleton" style=3D"opacity: 1;" src=3D"cid:FF2E7F11-C6BD-4199-91C=
B-E42F60AC1DB4" alt=3D"IMG_9906.jpg">
  </blockquote>
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