X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 04 Apr 2013 08:00:10 -0400 Message-ID: X-Original-Return-Path: Received: from [198.64.152.110] (HELO sdc.com) by logan.com (CommuniGate Pro SMTP 6.0.4) with ESMTP id 6179276 for lml@lancaironline.net; Wed, 03 Apr 2013 21:56:39 -0400 Received-SPF: pass receiver=logan.com; client-ip=198.64.152.110; envelope-from=ronald@sdc.com Received: from [10.0.1.31] [98.27.50.106] by sdc.com with ESMTP (SMTPD-12.2.0.235) id b1fc00026bcc12cb; Wed, 3 Apr 2013 21:50:58 -0400 User-Agent: Microsoft-MacOutlook/14.2.3.120616 X-Original-Date: Wed, 03 Apr 2013 21:55:52 -0400 Subject: Re: [LML] Re: LIVP Power and Flight parameters from today's flight test. From: RONALD STEVENS X-Original-To: Lancair Mailing List X-Original-Message-ID: Thread-Topic: [LML] Re: LIVP Power and Flight parameters from today's flight test. In-Reply-To: Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit I do have the same number between ROP/LOP. But for me taking off the de-ice had a larger effect. I got at least 12 kts or better extra speed. I used to cruise 240 (full fuel, 2 250lbs persons and luggage) and 247 (with 1/3 tanks) @ 17500 LOP. Now I am cruising LOP 254-256kts with the same configuration. Making me very happy as my plane is called 'a heavy IV-p bird lol And if you can count 2-3kts/1000ft that would make it flying 270kts/level250 :)~ (MP 31.5, FF=19, 2500rpm, >80 degrees LOP) -- Ronald (>260hours and counting) On 4/3/13 7:47 PM, "Craig Berland" wrote: >I pickup about 8 kts when running ROP. I pickup about 3 kts per thousand >feet increase in altitude. The "air" can change the TAS 10-15 kts pretty >easy, so getting good test data is difficult. I ran some tests back to >back ROP and then LOP at a variety of altitudes. 8 kts is a decent rule >of thumb. >Craig > >Sent from my iPad > >On Apr 3, 2013, at 8:24 AM, "Colyn Case" wrote: > >> Craig, >> >> just noodling about my de-ice again. trying to figure out how slow I'm >>going to be. >> I only have ROP numbers on my plane at fl250. Trying to convert those >>into LOP speed. >> Do you have ROP numbers for your plane up there? In other words do you >>know your ROP to LOP speed penalty? >> >> Colyn >> >> On Jul 24, 2012, at 7:57 AM, Craig Berland wrote: >> >> Flight to OSH from Sedona, AZ...actually to Yankton, ND for lunch and >>fuel. >> Sunday >> ISA +35 >> FL 250 >> MP 31.9 >> RPM 2500 >> FF 17.1 gph >> TAS 277 (Chelton) >> >> Craig Berland >> N7VG >> >> Sent from my iPad >> >> On Jul 23, 2012, at 7:31 AM, "jeffrey liegner" wrote: >> >>> Power and Flight parameters from today's flight test. >>> >>> Level FL240 west bound: 15*F (IAS+41F) >>> >>> MAP 31.5 >>> RPM 2400 >>> Fuel 17.1 gph (LOP) FP 30 >>> TAS 257 >>> LIAS 174 >>> High CHT 394 (#2, of course) >>> Cabin Altitude 10,000' (PSID 5.0) >>> >>> If Fuel 18.1 gph, speed increases TAS 264 but CHT increase. >>> >>> http://flightaware.com/live/flight/N334P >>> >>> Comments? Analysis? >> >> >> >> >> -- >> For archives and unsub >>http://mail.lancaironline.net:81/lists/lml/List.html >> >> >> -- >> For archives and unsub >>http://mail.lancaironline.net:81/lists/lml/List.html > > > > >-- >For archives and unsub >http://mail.lancaironline.net:81/lists/lml/List.html >