X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.12.137.4] (HELO imo-m23.mail.aol.com) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1231946 for flyrotary@lancaironline.net; Tue, 11 Jul 2006 01:26:12 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.4; envelope-from=ARGOLDMAN@aol.com Received: from ARGOLDMAN@aol.com by imo-m23.mx.aol.com (mail_out_v38_r7.5.) id q.554.253c8f7 (58550) for ; Tue, 11 Jul 2006 01:25:18 -0400 (EDT) From: ARGOLDMAN@aol.com Message-ID: <554.253c8f7.31e4903e@aol.com> Date: Tue, 11 Jul 2006 01:25:18 EDT Subject: Re: [FlyRotary] Re: Temperature control To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1152595518" X-Mailer: 9.0 SE for Windows sub 5026 X-Spam-Flag: NO -------------------------------1152595518 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 7/10/2006 4:44:50 PM Central Standard Time, eanderson@carolina.rr.com writes: While both our temps are above the nominal recommended, I have found that for short duration, there does not APPEAR to be any problem. I know Tracy encounters (or did with the old 13B) the same conditions with no apparent problems. I think we would both feel a bit more comfortable with temps that stayed below 200F (and I do use that as my max red line for oil), they only way I know to do that is to size your coolant system for climb conditions which means it will be oversized for cruise with resulting excessive drag. My 0.02 Ed Ed, Consider the air exhaust rather than considering the intake sizes. Air, in a cooling system does not act the way we think it does. If it doesn't like the flow pattern, it will stop. You can use a manometer (make it out a clear tube) to look at air pressure differentials. Don't forget about cowl flaps. Keep cool Rich -------------------------------1152595518 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 7/10/2006 4:44:50 PM Central Standard Time,=20 eanderson@carolina.rr.com writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>While=20 both our temps are above the nominal recommended, I have found that
fo= r=20 short duration, there does not APPEAR to be any problem. I know Trac= y=20
encounters (or did with the old 13B) the same conditions with no appar= ent=20
problems. I think we would both feel a bit more comfortable with= =20 temps that
stayed below 200F (and I do use that as my max red line for= =20 oil), they only
way I know to do that is to size your coolant system f= or=20 climb conditions
which means it will be oversized for cruise with=20 resulting excessive drag.

My=20 0.02

Ed

Ed,

Consider the air exhaust rather than considering the intake sizes. Air,= in=20 a cooling system does not act the way we think it does. If it doesn't like t= he=20 flow pattern, it will stop.

You can use a manometer (make it out a clear tube) to look at air press= ure=20 differentials. Don't forget about cowl flaps.

Keep cool

Rich

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