X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm21-vm0.access.bullet.mail.sp2.yahoo.com ([98.139.44.176] verified) by logan.com (CommuniGate Pro SMTP 5.4.2) with SMTP id 5179000 for flyrotary@lancaironline.net; Mon, 31 Oct 2011 00:46:36 -0400 Received-SPF: softfail receiver=logan.com; client-ip=98.139.44.176; envelope-from=echristley@nc.rr.com Received: from [98.139.44.103] by nm21.access.bullet.mail.sp2.yahoo.com with NNFMP; 31 Oct 2011 04:46:01 -0000 Received: from [98.139.44.71] by tm8.access.bullet.mail.sp2.yahoo.com with NNFMP; 31 Oct 2011 04:46:01 -0000 Received: from [127.0.0.1] by omp1008.access.mail.sp2.yahoo.com with NNFMP; 31 Oct 2011 04:46:01 -0000 X-Yahoo-Newman-Id: 316056.71329.bm@omp1008.access.mail.sp2.yahoo.com Received: (qmail 34230 invoked from network); 31 Oct 2011 04:46:00 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1320036360; bh=FZeGkUFYCu9DNe1NtP6y6gPzphGzsOr7dH9iLGtTzvo=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:Date:From:Reply-To:User-Agent:MIME-Version:To:Subject:Content-Type:Content-Transfer-Encoding; b=n6451fq/1/w/HPUZ5cSv5RJo4T+9qsi36MGGN+cJ8IdpyZqj+c8/Ug8AzGx+yg1Ezn614W7yDSbpRFM+y62b3PqPimQPjpxHoCNt58EZvtoi4MrZMwAXvDd9/grT+9fwwMJFPD6HdE7exFebCCqJRh6XFIMXCrAY+D2zCQwSr8s= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: JxhWdy0VM1lMSUfOS7.iVqP1UAgZ2jcPrJkO5qShxKMGAmv yHXUPOQW2mNJZyhIjgglxFQ2ZIfCz.FL.GVmzJG3kbGhrhZ2GfZWS4bWWM4L pkL5r7gMd.NT350cQvdKSL1d..nAlbONuONsJqjZsb56Qfqhy.C9ddqUpBHa eRAR5kjp342wXK4H1siaO2HxF4PUhKJY.yL69TjaTSEjn_yFhvcbqCIqchUI j4zebBHOCsEiT8S9uapX_6SdBQLYK8qVjYJ3u4Gxfv8EGA65nYXt.xeeuJAM Lz1VIcy6pqQsWnjot2Ie6h2X2FaTbggfG3AQBmrLU9EvsXQNLOsAaFeRVNlm l2UJgoezIvsgh8WIZBAJOGXW1.WEO9FYA6xzRpEAjwNvstJ4p1Q-- X-Yahoo-SMTP: 40RP3pGswBDvPav1a.I8eMv.KS8bdgWBnCloVoKaow-- Received: from [192.168.1.2] (echristley@71.70.227.94 with plain) by smtp110.sbc.mail.ne1.yahoo.com with SMTP; 30 Oct 2011 21:46:00 -0700 PDT Message-ID: <4EAE2776.9090202@nc.rr.com> Date: Mon, 31 Oct 2011 00:43:34 -0400 From: Ernest Christley Reply-To: echristley@att.net User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.23) Gecko/20110921 Lightning/1.0b2 Thunderbird/3.1.15 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Dyno prop bad, or pouring fuel out the tailpipe Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit I got some engine runs today. I think I'm still running way to rich. I've had some problems with flooding, and the numbers from my dyno prop just don't add up. I'm spinning a fiberglass sheath bar, 89mm^2, 1316mm long. 3500 rpm should require only approximately 15Hp. The engine is sucking down over 4gph at that setting. Which would explain my wife saying I stink when I go into the house, all the mosquitoes in the neighborhood are dead, and my friend Dwight that was helping me today had his lips turning blue from the C0. I've spent this evening modifying the tune to lean it out. Just need to get me a real propeller built so that I can do some real tuning.