X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 07 Aug 2012 07:46:28 -0400 Message-ID: X-Original-Return-Path: Received: from mail-pb0-f52.google.com ([209.85.160.52] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTPS id 5695973 for lml@lancaironline.net; Mon, 06 Aug 2012 16:17:33 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.52; envelope-from=billhogarty@gmail.com Received: by pbcxa7 with SMTP id xa7so1311891pbc.25 for ; Mon, 06 Aug 2012 13:16:56 -0700 (PDT) Received: by 10.68.218.163 with SMTP id ph3mr21954521pbc.58.1344284216145; Mon, 06 Aug 2012 13:16:56 -0700 (PDT) X-Original-Return-Path: Received: from [192.168.5.207] (ip-64-134-228-160.public.wayport.net. [64.134.228.160]) by mx.google.com with ESMTPS id wh7sm6142515pbc.33.2012.08.06.13.16.55 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 06 Aug 2012 13:16:55 -0700 (PDT) Subject: Re: [LML] Re: Recent LIVP Power Settings (Westbound, FL220, LOP, 2350 RPM) References: From: Bill Hogarty Content-Type: text/plain; charset=us-ascii X-Mailer: iPad Mail (9B206) In-Reply-To: X-Original-Message-Id: <60C5B83C-A2D9-4682-8E92-C604220E9B86@gmail.com> X-Original-Date: Mon, 6 Aug 2012 13:16:55 -0700 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (1.0) OPPS..... Wasn't there a bulletin from TCM that said to avoid 2300 rpm? On Aug 6, 2012, at 8:54 AM, Robert R Pastusek wrote: > Jeff, > I have found that you can pull the power back even more with minimal loss o= f speed. I suggest you do some testing down to 29"/2300 RPM and see what you= get for cruise. The fuel flow will be at/below 14 GPH at these power settin= gs (LOP and about 55% of rated power). >=20 > Bob P >=20 > -----Original Message----- > From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of jef= frey liegner > Sent: Monday, August 06, 2012 7:57 AM > To: lml@lancaironline.net > Subject: [LML] Recent LIVP Power Settings (Westbound, FL220, LOP, 2350 RPM= ) >=20 >=20 > Sent: Sunday, August 5, 2012 9:40:17 PM > Subject: Recent LIVP Power Settings (Westbound, FL220, LOP, 2350 RPM) >=20 >=20 > Further flight experimenting with slower prop, lower MAP and LOP at lower f= uel flows.=20 >=20 >=20 > August 4th, Westbound FL220.=20 >=20 >=20 > MAP 32.0 RPM 2340 FF 16.5 gal/hour (LOP) yields TAS 246.=20 >=20 >=20 > In the past, at a more aggressive setting immediately after take off: MAP 3= 4" RPM 2500 FF 19.0 though out the flight, I would show TAS ~245, roughly th= e same TAS. Improved prop efficiency?=20 >=20 >=20 > At MAP 31.5" RPM 2350, the FF is 16.2 and the performance is roughly the s= ame.=20 >=20 >=20 > At this cruise setting, with a WOT RPM 2680 climb to the flight levels, th= e plane's range increases to six hours (rate than 5.5 hours) and still trave= ls 1100nm in five hours on a 110gal full gas load.=20 >=20 >=20 > Comments welcomed.=20 >=20 >=20 > Jeff L=20 >=20 >=20 > Bonus: light winds over the Rockies=20 >=20 > http://flightaware.com/live/flight/N334P/history/20120804/1705Z/1D8/S21=20= >=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm= l