X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 11 May 2006 19:51:40 -0400 Message-ID: X-Original-Return-Path: Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1101347 for lml@lancaironline.net; Thu, 11 May 2006 18:47:33 -0400 Received-SPF: none receiver=logan.com; client-ip=205.152.59.72; envelope-from=aadamson@highrf.com Received: from ibm68aec.bellsouth.net ([68.154.105.130]) by imf24aec.mail.bellsouth.net with ESMTP id <20060511224649.VBSH13458.imf24aec.mail.bellsouth.net@ibm68aec.bellsouth.net> for ; Thu, 11 May 2006 18:46:49 -0400 Received: from Typhoon ([68.154.105.130]) by ibm68aec.bellsouth.net with ESMTP id <20060511224649.FASS20933.ibm68aec.bellsouth.net@Typhoon> for ; Thu, 11 May 2006 18:46:49 -0400 From: "Alan K. Adamson" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] LML Prop Diameter X-Original-Date: Thu, 11 May 2006 18:46:46 -0400 X-Original-Message-ID: <003c01c6754c$c856bdd0$0501a8c0@highrf.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003D_01C6752B.41451DD0" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 Thread-Index: AcZ1S/IE3DCHLVS5QpuIq/BdRr/LEwAAK16w In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_003D_01C6752B.41451DD0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit The Hartzel is 72" in the 2 blade version for the IO-550, and is 70" in the 3 blade version for the IO-550 _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Kevin Kossi Sent: Thursday, May 11, 2006 6:41 PM To: Lancair Mailing List Subject: [LML] LML Prop Diameter I am building a Legacy with a Performance Engines; Continental IO-550-EXP Engine (370hp @ 2,800 rpm) I want to put a MT Scimitar 3 Blade Model MTV-9-D-C/C183-50b on it. My concern is that it is a 72" Prop, does not leave much space between the Prop. and the ground during a full compression of the front strut, or if the strut looses pressure, or irregularities in the runway. I am concerned about a ground strike. I am exploring going to a smaller, say 68" four blade Prop. but am finding that a four blade Prop is less efficient than a three blade and I will end up with lower performance.? I want an all around Prop with good performance. I will do most of my cruising at 11,000' MSL. Does anyone have any suggestions?. Are there any performance graphs for the Props? any testing with the Legacy? Experiences? Kevin Kossi Legacy 35% New York, NY ------=_NextPart_000_003D_01C6752B.41451DD0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
The Hartzel is 72" in the 2 blade version for = the IO-550,=20 and is 70" in the 3 blade version for the IO-550

From: Lancair Mailing List=20 [mailto:lml@lancaironline.net] On Behalf Of Kevin = Kossi
Sent:=20 Thursday, May 11, 2006 6:41 PM
To: Lancair Mailing=20 List
Subject: [LML] LML Prop Diameter

I am building a = Legacy with a=20 Performance Engines; Continental IO-550-EXP Engine (370hp @ 2,800 rpm)=20
I want to put a MT = Scimitar 3=20 Blade Model MTV-9-D-C/C183-50b on it.

My concern is that it = is a 72"=20 Prop, does not leave much space between the Prop. and the ground during = a full=20 compression of the front strut, or if the strut looses pressure, or=20 irregularities in the runway.

I am concerned about = a ground=20 strike. I am exploring going to a smaller, say 68" four blade Prop. but = am=20 finding that a four blade Prop is less efficient than a three blade and = I will=20 end up with lower performance.?
I want an all around = Prop with=20 good performance. I will do most of my cruising at 11,000' MSL. Does = anyone have=20 any suggestions?. Are there any performance graphs for the Props? any = testing=20 with the Legacy? Experiences?

Kevin = Kossi
Legacy = 35%
New York, = NY

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