Return-Path: Received: from fed1rmmtao11.cox.net ([68.230.241.28] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 361680 for flyrotary@lancaironline.net; Wed, 11 Aug 2004 17:23:33 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.28; envelope-from=daveleonard@cox.net Received: from smtp.west.cox.net ([172.18.180.57]) by fed1rmmtao11.cox.net (InterMail vM.6.01.03.02.01 201-2131-111-104-103-20040709) with SMTP id <20040811212302.YOY20274.fed1rmmtao11.cox.net@smtp.west.cox.net> for ; Wed, 11 Aug 2004 17:23:02 -0400 X-Mailer: Openwave WebEngine, version 2.8.15 (webedge20-101-1103-20040528) From: To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Pressure switch Date: Wed, 11 Aug 2004 17:23:02 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Message-Id: <20040811212302.YOY20274.fed1rmmtao11.cox.net@smtp.west.cox.net> Yes, the engine windmills very nicely. I usually just let my 2nd fuel tank run dry, when the power drops (out of gas) I just switch tanks and it starts running in less than 2 sec. The fuel pressure goes from about 42 with the engine off (29.9 MAP) to 32 at idle (14" MAP) In fact, I just realized why I run so rough on desent. The MAP is probably getting pulled down below 10" and the pressure probably drops even more making it very lean... hmmm :-) Dave Leonard > > Two questions: Does the engine 'windmill' if turned off during cruise? > > How much does your pressure regulator drop the > pressure at low MAP? > > > > Al > > http://www.bandc.biz/S8012.html > > > > >