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Date: Wed, 16 Nov 2016 08:16:00 +0000 (UTC)
To: "Fly rotary blog, e-mail" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Cooling
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Thread-Topic: Cooling
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increase outlet size, we had some minor cooling problems our fix was adding=
 2, 6" X 6" SS loovers into lower cowl rear area. David Cook RV6A Rotary=20

----- Original Message -----

From: "steve Izett" <flyrotary@lancaironline.net>=20
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>=20
Sent: Monday, November 14, 2016 5:21:04 PM=20
Subject: [FlyRotary] Cooling=20

Hi guys.=20
The Glasair SIIRG is near completion and we are taxi testing.=20
The OAT is rising as we enter summer. Yesterday was 37C ~ 100F.=20
She can idle forever with water stabilising below 220F and oil below 180F i=
f the OAT is below 70F but not sure yet about the warmer days.=20
I=E2=80=99m wondering about 3 options and would value your experience and t=
houghts:=20
1. Route some more air from the left cheek into the water heat exchange dif=
fuser currently fed by the right cheek. I am currently only using 50% of th=
e left cheek (Blanked off). The other 50% of the left cheek feeds air to th=
e engine. The air is likely not to want to do the gymnastics required to tr=
avel the path available.=20
2. Install another small core fed by the available left cheek air with wate=
r from the heater outlet. This would make for easy plumping as far as the w=
ater system. I=E2=80=99m not sure how much heat we could reject from that s=
mall diameter heater outlet?=20
3. Install an electric fan on the main exchanger for extended on the ground=
 running. Main concern with fan is, what happens when cruising at up to 200=
Knots?=20

Appreciate you feedback=20

Steve Izett=20
Glasair SIIRG Genesis 4 port RD1C EC2=20
Perth Western Australia=20


--=20
Homepage: http://www.flyrotary.com/=20
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.ht=
ml=20


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<html><body><div style=3D"font-family: Arial; font-size: 12pt; color: #0000=
00"><div aria-label=3D"Compose body">increase outlet size, we had some mino=
r cooling problems our fix was adding 2,&nbsp;6" X 6" SS&nbsp;loovers&nbsp;=
into lower cowl rear area.&nbsp; David Cook RV6A Rotary&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; <br></div><div><br></div><hr id=3D"zwchr"><div style=
=3D"color:#000;font-weight:normal;font-style:normal;text-decoration:none;fo=
nt-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style=3D"col=
or: #000; font-weight: normal; font-style: normal; text-decoration: none; f=
ont-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"ste=
ve Izett" &lt;flyrotary@lancaironline.net&gt;<br><b>To: </b>"Rotary motors =
in aircraft" &lt;flyrotary@lancaironline.net&gt;<br><b>Sent: </b>Monday, No=
vember 14, 2016 5:21:04 PM<br><b>Subject: </b>[FlyRotary] Cooling<br><div><=
br></div>Hi guys.<br>The Glasair SIIRG is near completion and we are taxi t=
esting.<br>The OAT is rising as we enter summer. Yesterday was 37C ~ 100F.<=
br>She can idle forever with water stabilising below 220F and oil below 180=
F if the OAT is below 70F but not sure yet about the warmer days.<br>I=E2=
=80=99m wondering about 3 options and would value your experience and thoug=
hts:<br>1. Route some more air from the left cheek into the water heat exch=
ange diffuser currently fed by the right cheek. I am currently only using 5=
0% of the left cheek (Blanked off). The other 50% of the left cheek feeds a=
ir to the engine. The air is likely not to want to do the gymnastics requir=
ed to travel the path available. <br>2. Install another small core fed by t=
he available left cheek air with water from the heater outlet. This would m=
ake for easy plumping as far as the water system. I=E2=80=99m not sure how =
much heat we could reject from that small diameter heater outlet?<br>3. Ins=
tall an electric fan on the main exchanger for extended on the ground runni=
ng. Main concern with fan is, what happens when cruising at up to 200Knots?=
 <br><div><br></div>Appreciate you feedback<br><div><br></div>Steve Izett<b=
r>Glasair SIIRG Genesis 4 port RD1C EC2<br>Perth Western Australia<br><div>=
<br></div><br>--<br>Homepage: &nbsp;http://www.flyrotary.com/<br>Archive an=
d UnSub: &nbsp; http://mail.lancaironline.net:81/lists/flyrotary/List.html<=
br></div><div><br></div></div></body></html>
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