X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 04 Apr 2013 14:56:53 -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 6180862 for lml@lancaironline.net; Thu, 04 Apr 2013 13:46:06 -0400 Received-SPF: pass receiver=logan.com; client-ip=198.64.152.110; envelope-from=ronald@sdc.com Received: from [192.168.0.9] [68.202.61.147] by sdc.com with ESMTP (SMTPD-12.2.0.235) id 21520002a8f17d26; Thu, 4 Apr 2013 13:40:30 -0400 User-Agent: Microsoft-MacOutlook/14.2.3.120616 X-Original-Date: Thu, 04 Apr 2013 13:45:27 -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 was using the RDD de-ice system. On 4/4/13 8:59 AM, "Andrea Katz" wrote: >Which de ice are you using. Tks or rdd? > >Sent from my iPhone > >On Apr 4, 2013, at 7:00 AM, RONALD STEVENS wrote: > >> 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 >> >> >> >> >> -- >> 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 >