X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 23 Mar 2010 11:45:10 -0400 Message-ID: X-Original-Return-Path: Received: from a2s34.a2hosting.com ([74.126.18.170] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTPS id 4175694 for lml@lancaironline.net; Tue, 23 Mar 2010 08:48:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.126.18.170; envelope-from=lorn@dynacomm.us DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=dynacomm.us; h=Received:From:Content-Type:Content-Transfer-Encoding:Subject:Date:Message-Id:To:Mime-Version:X-Mailer; b=fP24bRN4sGwp9mVYDS/kK/OGsEEL6f9lKSpkrKPZAfb06asYhqWnfRa63mEnkoDFImpmU2q0sPdALikK++b0Wxyib5Bbor8Q41Eo7d7zBAkGJH6QDnKd9X+MhsZW+VZ2; Received: from c-68-41-117-55.hsd1.mi.comcast.net ([68.41.117.55] helo=[192.168.1.130]) by a2s34.a2hosting.com with esmtpa (Exim 4.69) (envelope-from ) id 1Nu3W6-00047N-Sy for lml@lancaironline.net; Tue, 23 Mar 2010 08:47:30 -0400 From: Lorn H Olsen Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Subject: Re: Lancair 235 X-Original-Date: Tue, 23 Mar 2010 08:47:28 -0400 X-Original-Message-Id: <8F99BF98-4DD9-488F-82BC-BE0F09390365@dynacomm.us> X-Original-To: Lancair List Mime-Version: 1.0 (Apple Message framework v1078) X-Mailer: Apple Mail (2.1078) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - a2s34.a2hosting.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - dynacomm.us Jim, I fly an O-320. I normally cruise at 15,000 ft at 2,350, throttle backed = off 1" and 175 kts. I back the throttle off for better leaned fuel = distribution. I am burning 5.5 to 6 gph lean of peak at this speed. I = also have an Aero Composites carbon fiber prop that I believe adds at = least 5 kts to the cruise speed. To fly at my stated 195 kts, I have to be at 6,000 to 7,000 ft wide open = throttle, rich of peak and 2,500 to 2,700 rpm. I only fly at this speed = once in a while to see in the plane can still do it. All other speeds and fuel burns in my matrix have come from the Lancair = web page, flight reviews, pilot discussion and 12 years of observance. When a pilot has told me that he cruises at 170 or 215 kts, even if he = told me the rpm & mp, 1 number is all that my mind remembered. I just thought that it would be kind of neat to have a list of = approximate costs, speeds, loads and efficiencies of our Lancairs. For a real comparison we would also need: altitude, = turbulence,temperature, pressure and don't forget calibrated, mp and rpm = gauges. Lorn > From: "Jim Nordin" > Date: March 22, 2010 2:24:12 PM EDT >=20 > Say Lorn, > In your matrix (LancairCostSpec.jpg) you show speed and gph. For these = figures, were all aircraft operated at the same rpm & manifold pressure? = Or percent horsepower? > Jim -- Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us LNC2, FB90/92, O-320-D1F, 1,700 hrs, N31161, Y47, SE Michigan