X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-da02.mx.aol.com ([205.188.105.144] verified) by logan.com (CommuniGate Pro SMTP 5.3.5) with ESMTP id 4225250 for flyrotary@lancaironline.net; Sat, 17 Apr 2010 23:56:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.144; envelope-from=SHIPCHIEF@aol.com Received: from imo-da01.mx.aol.com (imo-da01.mx.aol.com [205.188.169.199]) by imr-da02.mx.aol.com (8.14.1/8.14.1) with ESMTP id o3I3tj0X024877 for ; Sat, 17 Apr 2010 23:55:45 -0400 Received: from SHIPCHIEF@aol.com by imo-da01.mx.aol.com (mail_out_v42.9.) id q.dfe.2e6dd9f (37661) for ; Sat, 17 Apr 2010 23:55:40 -0400 (EDT) Received: from smtprly-mc01.mx.aol.com (smtprly-mc01.mx.aol.com [64.12.95.97]) by cia-mb07.mx.aol.com (v128.3) with ESMTP id MAILCIAMB073-d3cd4bca82b9c7; Sat, 17 Apr 2010 23:55:40 -0400 Received: from Webmail-d106 (webmail-d106.sim.aol.com [205.188.171.200]) by smtprly-mc01.mx.aol.com (v128.3) with ESMTP id MAILSMTPRLYMC017-d3cd4bca82b9c7; Sat, 17 Apr 2010 23:55:37 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] cooling for ground runs Date: Sat, 17 Apr 2010 23:55:37 -0400 X-AOL-IP: 24.19.204.151 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: shipchief@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CCACC223895FD9_2F04_1BB8D_Webmail-d106.sysops.aol.com" X-Mailer: AOL Webmail 31423-STANDARD Received: from 24.19.204.151 by Webmail-d106.sysops.aol.com (205.188.171.200) with HTTP (WebMailUI); Sat, 17 Apr 2010 23:55:37 -0400 Message-Id: <8CCACC22373F370-2F04-E43F@Webmail-d106.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: SHIPCHIEF@aol.com ----------MB_8CCACC223895FD9_2F04_1BB8D_Webmail-d106.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Chris & Terria: I had ground running temp issues at lower power. Dave Leonard told me that= it's important to get it to self cool at low to mid power on the ground.= He said that reliance on sufficient cooling when you come up to flying sp= eed most likely won't work if it won't self cool on the ground. I took his= advise and redesigned my cooling system, which by the way looks a lot lik= e yours with major differences being cooler ducting and cooler orientation= . He's a link to my page @ EAA326 site: http://gallery.eaa326.org/main.php= ?g2_itemId=3D1727 Tracy has commented that I should have reduced the cross section of my oil= cooler duct more quickly to force the air to uniformly pass thru the oil= cooler core. I applied that thinking to my water cooler which I built nex= t, and it worked even better than my cardboard and tape trial duct. What is the engine RPM and % load that you start to have cooling problems? Scott -----Original Message----- From: Chris and Terria To: Rotary motors in aircraft Sent: Sat, Apr 17, 2010 10:02 am Subject: [FlyRotary] cooling for ground runs Gents, =20 I am doing the higher power ground runs now, and am only able to run for= about 5 minutes before reaching 195* or so. I=E2=80=99m looking for idea= s on how to extend the time for each ground run. I was thinking of adding= a spray bar like others have discussed. My thought was to drill some hol= es in some PVC and connect it to the garden hose. Then put it in the inta= ke in front of the radiator. I would have to run the hose out the front= and clamp it down so it doesn=E2=80=99t come close to the prop. =20 I=E2=80=99m open to all ideas though. =20 I=E2=80=99ve attached a picture that shows my radiator and duct work. =20 Thanks, =20 Chris -- omepage: http://www.flyrotary.com/ rchive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html ----------MB_8CCACC223895FD9_2F04_1BB8D_Webmail-d106.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Chris & Terria:
I had ground running temp issues at lower power. Dave Leonard told me= that it's important to get it to self cool at low to mid power on the gro= und. He said that reliance on sufficient cooling when you come up to flyin= g speed most likely won't work if it won't self cool on the ground.= I took his advise and redesigned my cooling system, which by the way look= s a lot like yours with major differences being cooler ducting and cooler= orientation. He's a link to my page @ EAA326 site: http://gallery.eaa326.org/main.p= hp?g2_itemId=3D1727
Tracy has commented that I should have reduced the cross section of my oil= cooler duct more quickly to force the air to uniformly pass thru the oil= cooler core. I applied that thinking to my water cooler which I built nex= t, and it worked even better than my cardboard and tape trial duct.
What is the engine RPM and % load that you start to have cooling prob= lems?
Scott


-----Original Message-----
From: Chris and Terria <candtmallory@embarqmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sat, Apr 17, 2010 10:02 am
Subject: [FlyRotary] cooling for ground runs

Gents,
 
I am doing the higher power ground runs now, and am= only able to run for about 5 minutes before reaching 195* or so.  I= =E2=80=99m looking for ideas on how to extend the time for each ground run= .  I was thinking of adding a spray bar like others have discussed.&n= bsp; My thought was to drill some holes in some PVC and connect it to the= garden hose.  Then put it in the intake in front of the radiator.&nb= sp; I would have to run the hose out the front and clamp it down so it doe= sn=E2=80=99t come close to the prop.
 
I=E2=80=99m open to all ideas though.
 
I=E2=80=99ve attached a picture that shows my radia= tor and duct work.
 
Thanks,
 
Chris

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