X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cartier.micfo.com ([67.15.58.72] verified) by logan.com (CommuniGate Pro SMTP 5.0c5) with ESMTPS id 771672 for flyrotary@lancaironline.net; Mon, 17 Oct 2005 23:06:28 -0400 Received-SPF: none receiver=logan.com; client-ip=67.15.58.72; envelope-from=bob@bob-white.com Received: from bgp01386375bgs.brodwy01.nm.comcast.net ([68.35.160.229]:36247 helo=quail) by cartier.micfo.com with smtp (Exim 4.52) id 1ERhnE-0001OL-5E for flyrotary@lancaironline.net; Mon, 17 Oct 2005 22:05:36 -0500 Date: Mon, 17 Oct 2005 21:05:40 -0600 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Flying again! Message-Id: <20051017210540.ceaefe18.bob@bob-white.com> In-Reply-To: References: X-Mailer: Sylpheed version 2.1.3 (GTK+ 2.4.9; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-PopBeforeSMTPSenders: bobw2,nmrv,rlwhite,sales@roblinphoto.com,webmaster@bearnutupholstery.com X-Antivirus-Scanner: Clean mail though you should still use an Antivirus X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cartier.micfo.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - bob-white.com X-Source: X-Source-Args: X-Source-Dir: Congratulations on getting back in the air. All things considered it sound like a great day. Bob W. (just a little envious) On Mon, 17 Oct 2005 18:47:15 -0700 David Leonard wrote: > Today I took my RV-6, powered by a 2.6L equivalent rotary engine, back up > into the sky after its last re-build. > Sure was nice to get back into the air. Putting on the high > compression 9.7rotors, along with mild street porting and fixing any > poor compression that > I previously had, seems to have given me about 500 rpm for a given manifold > pressure without any apparent rise in the heat load. I also now have ceramic > coating on my manifold, turbine housing, and exhaust pipe. I believe this is > helping temps a noticeable amount. > I kept the MAP under 29 today, which I will do for a while to let things > break in. At 7000', 28" MAP, I was seeing about 6000 RPM and 150 KIAS. > Ground speed up around 180 kts. Max oil temp was 150 and max coolant temp > was 190. But is was a nice cool day. > Just when I thought everything was going great WHAM!. MAP suddenly drops to > 17" for no reason.... There goes my last hope for a turbo I figure... I > wonder when the tower is going to note the smoke coming out of my > exhaust.... > I land and taxi back without incident, no smoke.. > Turns out one of the intake hose clamps was not on tight enough.... (huge > sigh of relief). Good thing that I have not yet installed my turbo oil shut > off valve, or I might have considered switching it on. > > -- > Dave Leonard > Turbo Rotary RV-6 N4VY > http://members.aol.com/_ht_a/rotaryroster/index.html > http://members.aol.com/_ht_a/vp4skydoc/index.html > -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (real soon) Prewired EC2 Cables - http://www.roblinphoto.com/shop/