Return-Path: Received: from [65.54.169.173] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.1b8) with ESMTP id 2437501 for flyrotary@lancaironline.net; Fri, 20 Jun 2003 16:00:37 -0400 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 20 Jun 2003 13:00:36 -0700 Received: from 67.243.12.29 by bay3-dav143.bay3.hotmail.com with DAV; Fri, 20 Jun 2003 20:00:35 +0000 X-Originating-IP: [67.243.12.29] X-Originating-Email: [lors01@msn.com] Reply-To: "Tracy Crook" From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Ivo Magnum Pitch Question Date: Fri, 20 Jun 2003 16:01:44 -0400 Organization: Real World Solutions Inc. MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Message-ID: X-OriginalArrivalTime: 20 Jun 2003 20:00:36.0110 (UTC) FILETIME=[9D42D2E0:01C33766] That sanity checks with me Tommy. BTW, I was using the IVO in two blade setup and I think 3 blades will give a somewhat higher Delta RPM from static to top speed so the numbers you are seeing are in the ballpark, definitely flyable. Tracy ----- Original Message ----- From: "Tommy James" > Update: Thanks to Dave, Tracy and Ed!! > I ran the engine this morning with the pitch reset at a nominal 60". > WOT produced static rpm of 4350 (smooth) at MAP of a hair under 30". If > Tracy's delta rpm of 1200 hold true for this prop, then we should see 5550 > for WOT cruise and about 150kts. (Vne is 167kts., Va is 98kts.) > Seems to be a reasonable place to start, or am I missing something? > Tommy<>< > > "But you need to clarify your test results a bit. What does it mean when > you > say you were at less than full throttle "but the engine did not seem to > want to advance from there"? Do you mean that the engine does not go > faster when the manifold pressure goes from 25" to 30"? If so, this defies > all logic and qualifies as in the "do not fly until solved" category." > > Tracy Crook > > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html >