X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [129.116.87.143] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1070617 for flyrotary@lancaironline.net; Mon, 17 Apr 2006 09:04:53 -0400 Received-SPF: none receiver=logan.com; client-ip=129.116.87.143; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [FlyRotary] One big problem solved Date: Mon, 17 Apr 2006 08:04:06 -0500 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E04507006@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] One big problem solved Thread-Index: AcZhscm61doby2duR8G3uSapJq9tvgAbVGMA From: "Mark R Steitle" To: "Rotary motors in aircraft" Buly, Congrats on your progress, especially your first flight. Open the Champaign! Time to celebrate. =20 Interesting about setting the timing at 4k. I don't recall reading that. Is it in the manual? =20 Mark -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bulent Aliev Sent: Sunday, April 16, 2006 6:59 PM To: Rotary motors in aircraft Subject: [FlyRotary] One big problem solved From the beginning of running the engine with the prop on, I could =20 not pass the 4000 RPM static barrier. First I run it with the prop I =20 made that it is rather large 3 bladed 70" prop. I thought that I was =20 just over proped. John Slade landed me his prop that's smaller =20 diameter 64" and the blades have about 25-30% smaler area surface. =20 Same static performance. I had fuel pressure, manifold pressure all =20 the way to 60", but it will not budge past 4K RPM. So I took to Tracy's manuals. One paragraph mentioned to adjust the =20 timing at 4K RPM with engine and prop running. AHAA! Me and the neighbor made degree wheel and new marks on the pulley per =20 Tracy's recommendations. Last evening I volunteered my neighbor to do =20 the timing light magic and move the crank angle sensor on top of the =20 screaming engine and prop, while I was the "throttle man". By 9 PM the engine passed 4700 rpm static and was ready to go =20 further, but the coolant was getting too hot and I ended the =20 experiments. So, if everything else fails you turbo rotary guys, set your timing =20 at 4K RPM static per Tracy's recommendations :) Buly Next problem installment coming.... -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/