Return-Path: Received: from seraph3.grc.nasa.gov ([128.156.10.12] verified) by logan.com (CommuniGate Pro SMTP 4.2b5) with ESMTP id 142914 for flyrotary@lancaironline.net; Mon, 07 Jun 2004 12:00:37 -0400 Received: from lombok-fi.grc.nasa.gov (lombok-fi.grc.nasa.gov [139.88.112.33]) by seraph3.grc.nasa.gov (Postfix) with ESMTP id 2CA056B9EA for ; Mon, 7 Jun 2004 12:00:05 -0400 (EDT) Received: from manihi.grc.nasa.gov (manihi.grc.nasa.gov [139.88.112.36]) by lombok-fi.grc.nasa.gov (NASA GRC TCPD 8.12.10/8.12.10) with ESMTP id i57G04RP002132 for ; Mon, 7 Jun 2004 12:00:04 -0400 (EDT) Received: from GR7700002171.lerc.nasa.gov (gr7700002171.grc.nasa.gov [139.88.139.35]) by manihi.grc.nasa.gov (NASA GRC TCPD 8.12.10/8.12.10) with ESMTP id i57G04cg004798 for ; Mon, 7 Jun 2004 12:00:04 -0400 (EDT) X-Info: ODIN / NASA Glenn Research Center Message-Id: <5.1.1.5.2.20040607115203.018072a0@popserve.lerc.nasa.gov> X-Sender: scberki@popserve.lerc.nasa.gov X-Mailer: QUALCOMM Windows Eudora Version 5.1.1 Date: Mon, 07 Jun 2004 12:00:02 -0400 To: "Rotary motors in aircraft" From: Joseph M Berki Subject: Cooling oil Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed I received some preliminary information about oil flow rates in Lycoming engines which was stated as 5 gal/ min. The other list had a thread where it was stated that the flow rate of the 13b oil pump was 9.5 gal / min @ 6000 rpm. How would play out in a scenario where an aircraft oil cooler was used in place of the Mazda unit? It would seem that the AC cooler can adequately cool 5 gal/min while the mazda unit can cool 9.5 gal/min. If 2 A/C coolers where used would the two scenarios be equal? Just thinking out loud any thoughts? Thanks Joe Berki