X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 18 Sep 2010 11:10:00 -0400 Message-ID: X-Original-Return-Path: Received: from fmailhost02.isp.att.net ([207.115.11.52] verified) by logan.com (CommuniGate Pro SMTP 5.3.9) with ESMTP id 4470751 for lml@lancaironline.net; Fri, 17 Sep 2010 11:59:27 -0400 Received-SPF: none receiver=logan.com; client-ip=207.115.11.52; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-85-189-64.mco.bellsouth.net[98.85.189.64]) by isp.att.net (frfwmhc02) with SMTP id <20100917155850H020022u70e>; Fri, 17 Sep 2010 15:58:50 +0000 X-Originating-IP: [98.85.189.64] From: "Bill Bradburry" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Re: In need more H.P. X-Original-Date: Fri, 17 Sep 2010 11:58:56 -0400 X-Original-Message-ID: <7FACE35622CC4417A97F1EFCDB0A4CEF@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01CB565F.B5024DA0" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 Thread-Index: ActWbdG2LZTrVuT/T9CEQbM7nlPekAAEtDRw This is a multi-part message in MIME format. ------=_NextPart_000_001C_01CB565F.B5024DA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Pete, Your propeller with a pitch of 78 inches, and cranking at 2700 rpm, with no slippage, will screw thru the air at 200 mph. If you are going faster, 207-213, your prop is actually producing lift, or negative slippage. Bill B _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of CavittP@aol.com Sent: Friday, September 17, 2010 9:40 AM To: lml@lancaironline.net Subject: [LML] Re: In need more H.P. Thanks everyone for the input. I really appreciate your taking the time to answer my post. Some solid ideas for me to consider. Probably will first try to resurrect my LSE Plasma III ignition system but this time use the case mounted flywheel sensor instead of the original pad mounted one that seemed to be sensitive to the heat buildup in the area of the accessories. Will also try to relocate the computer to a more forward location to keep all the leads lengths to a minimum. I've always run Bendix mags. Already use gap seals but may change cowling openings from the 235 configuration to the 320 style. My CHT's run quite cool, so am certain there is too much cooling drag. I'm consistently getting 180-185 KTAS (dependent on temperature) at 2700 RPM (full throttle) at 7,500' & 8,500' MSL with my 150 HP O-320-E2D and Aymar-Demuth 62 X 78 propeller. With power settings for 170 KTAS, I have a range of near 1000 NM (6.5 hours) with the 54 gallons of usable fuel at 8,500'-9,500' MSL (7 hours to dry tanks). Have on several occasions flown non-stop from San Diego to Seattle and on the way back as well (that leg was usually 5.5 - 6 hours). When the time comes for an overhaul will consider replacing the engine with an O-360 or 390 and will switch to a CS prop at that time. This is probably what I really need to do, but my engine is still running great with very little oil consumption. Thanks again! Pete Cavitt - N320PL 619-701-0784 Cell www.petecavitt.com ------=_NextPart_000_001C_01CB565F.B5024DA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Pete,

Your propeller with a pitch of 78 = inches, and cranking at 2700 rpm, with no slippage, will screw thru the air at = 200 mph. If you are going faster, 207-213, your prop is actually = producing lift, or negative slippage.

Bill B

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of CavittP@aol.com
Sent: Friday, September = 17, 2010 9:40 AM
To: = lml@lancaironline.net
Subject: [LML] Re: In = need more H.P.

Thanks everyone for the = input. I really appreciate your taking the time to answer my = post. Some solid ideas for me to consider.

=

Probably will first try to = resurrect my LSE Plasma III ignition system but this time use the case mounted = flywheel sensor instead of the original pad mounted one that seemed to be = sensitive to the heat buildup in the area of the accessories. Will also try to relocate the computer to a more forward location to keep all the leads = lengths to a minimum. I've always run Bendix = mags.

=

Already use gap seals but may = change cowling openings from the 235 configuration to the 320 style. My CHT's run quite cool, so am certain there is too much cooling = drag. I'm consistently getting 180-185 KTAS (dependent on temperature) at 2700 RPM (full throttle) at 7,500' & 8,500' MSL with = my 150 HP O-320-E2D and Aymar-Demuth 62 X 78 propeller. =

=

With power settings for 170 = KTAS, I have a range of near 1000 NM (6.5 hours) with the 54 gallons of = usable fuel at 8,500'-9,500' MSL (7 hours to dry tanks). Have on several occasions flown non-stop from San Diego = to Seattle and on = the way back as well (that leg was usually 5.5 - 6 = hours).

=

When the time comes for an = overhaul will consider replacing the engine with an O-360 or 390 and will switch to a = CS prop at that time. This is probably what I really need to do, but my = engine is still running great with very little oil = consumption.

=

Thanks = again!

=

Pete Cavitt - = N320PL
619-701-0784 Cell
www.petecavitt.com

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