X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 03 Jun 2006 20:49:39 -0400 Message-ID: X-Original-Return-Path: Received: from [65.54.250.84] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1138963 for lml@lancaironline.net; Sat, 03 Jun 2006 09:11:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.84; envelope-from=gary21sn@hotmail.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sat, 3 Jun 2006 06:07:20 -0700 X-Original-Message-ID: Received: from 63.224.201.253 by BAY115-DAV12.phx.gbl with DAV; Sat, 03 Jun 2006 13:07:15 +0000 X-Originating-IP: [63.224.201.253] X-Originating-Email: [gary21sn@hotmail.com] X-Sender: gary21sn@hotmail.com From: "Gary Edwards" X-Original-To: "Lancair Mailing List" Subject: Re: Lancair fixed pitch prop X-Original-Date: Sat, 3 Jun 2006 06:07:10 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005B_01C686D3.F3174DD0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.20.0026.0800 Seal-Send-Time: Sat, 3 Jun 2006 06:07:10 -0700 X-OriginalArrivalTime: 03 Jun 2006 13:07:20.0723 (UTC) FILETIME=[A5C74630:01C6870E] This is a multi-part message in MIME format. ------=_NextPart_000_005B_01C686D3.F3174DD0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I am planning to mount a fixed pitch propeller on my new Lancair 320. The plane is equipped with a Lycoming O320 D2A (160HP, carburator). Please, I'd liked some advice on the diameter, the pitch and the = manufacturer of suitable props. A French builder. Michel, I have a "Props Inc." on my early airframe. I am very satisfied with = it. I would use them again (I hope I never have to). =20 It is a 64 X 76 prop on a modified O-320. The 64" (inches - sorry Dom) = length is the maximum that would fit on the early airframe (shorter gear = legs), so you could go longer. The 76 pitch is similar to other prop = manufactures 82 pitch as Props Inc. measures there pitch differently = (see their website). The prop has 48, 1/8" (0.125") laminates and has = leading edge protection. The plane is slightly under propped as I can = turn it 2850 RPM with a static and take off RPM of 2440. So, I am = giving up a little on the top end speed (to your advantage Randy). I have had no problems with it after over 200 hours. After about 50 = hours, I static balanced it and gained 100 RPM in smoothness. I had a = larger crush plate machined in the beginning which captures the prop = bolt heads, so retorqueing the prop can be done without a second wrench = (spanner?), instead of using the smaller thinner one which came with the = prop extension. http://www.propsinc.net/Home%20Page.htm=20 Gary Edwards LNC2 N21SN Medford, Oregon ------=_NextPart_000_005B_01C686D3.F3174DD0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I am planning to mount a fixed = pitch propeller=20 on my new Lancair 320.
The plane is equipped with a = Lycoming O320 D2A=20 (160HP, carburator).
Please, I'd liked some advice on = the diameter,=20 the pitch and the manufacturer of suitable props.
A French builder.
 
Michel,
 
I have a "Props Inc." on my early = airframe.  I am=20 very satisfied with it.  I would use them again (I hope I never = have=20 to). 
 
It is a 64 X 76 prop on a = modified O-320.  The=20 64" (inches - sorry Dom) length is the maximum that would fit on the = early=20 airframe (shorter gear legs), so you could go longer.  The 76 pitch = is=20 similar to other prop manufactures 82 pitch as Props Inc. measures there = pitch=20 differently (see their website).  The prop has 48, 1/8" (0.125") = laminates=20 and has leading edge protection.  The plane is slightly = under=20 propped as I can turn it 2850 RPM with a static and take off RPM of = 2440. =20 So, I am giving up a little on the top end speed (to your advantage=20 Randy).
 
I have had no problems with it after over 200 = hours. =20 After about 50 hours, I static balanced it and gained 100 RPM in=20 smoothness.  I had a larger crush plate machined in the beginning = which=20 captures the prop bolt heads, so retorqueing the prop can be done = without a=20 second wrench (spanner?), instead of using the smaller thinner one which = came=20 with the prop extension.
 
 
Gary Edwards
LNC2 N21SN
Medford,=20 Oregon  
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