Return-Path: Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3209256 for flyrotary@lancaironline.net; Thu, 06 May 2004 14:42:09 -0400 Received: from TOSHIBAjhr ([209.214.14.161]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with SMTP id <20040506184208.FYHG17779.imf17aec.mail.bellsouth.net@TOSHIBAjhr> for ; Thu, 6 May 2004 14:42:08 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: surging Date: Thu, 6 May 2004 14:42:06 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Turbo Rotary Cozy IV N96PM flew again this morning. I think this is a first! Nothing went wrong, and I didn't break anything. :D I flew for about 0.8hrs. Ambient was about 75. Coolant and oil never went above 180, and were down to 140 during decent, so cooling just doesn't seem to be a problem. A write up (with pictures this time) is at http://canardaviation.com/cozy/chap29.htm#flight5 for your enjoyment. I still have a rich mixture problem. Its starting much easier now, and running smooth, but still way too rich. Today I had the mixture knob against the stop (lean) for the entire flight. Once I tried richening it a touch, and the engine faultered immediately. The mode 3 (on the ground) adjustments dont seem to make any difference. I wonder if I need smaller injectors or lower fuel pressure (currently running about 45psi). Thoughts anyone? John Slade