X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 11 May 2006 18:40:41 -0400 Message-ID: X-Original-Return-Path: Received: from vms044pub.verizon.net ([206.46.252.44] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1101188 for lml@lancaironline.net; Thu, 11 May 2006 17:08:57 -0400 Received: from [192.168.111.2] ([70.19.49.93]) by vms044.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built Sep 9 2005)) with ESMTPA id <0IZ4002DYDEOR034@vms044.mailsrvcs.net> for lml@lancaironline.net; Thu, 11 May 2006 16:08:49 -0500 (CDT) X-Original-Date: Thu, 11 May 2006 17:08:47 -0400 From: Kevin Kossi Subject: LML Prop Diameter In-reply-to: X-Original-To: "Lancair Mailing List" X-Original-Message-id: <57419D98-90FC-4274-ABD8-DBF8EDB11FD5@airforcemechanical.com> MIME-version: 1.0 (Apple Message framework v749.3) X-Mailer: Apple Mail (2.749.3) Content-type: multipart/alternative; boundary=Apple-Mail-22--576680509 References: --Apple-Mail-22--576680509 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed 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 --Apple-Mail-22--576680509 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1

I am building a = Legacy with a Performance Engines; Continental IO-550-EXP Engine (370hp = @ 2,800 rpm)=A0

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=A0efficient 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=A0cruising at 11,000' MSL. Does=A0anyone have any suggestions?. = Are there any performance graphs for the Props? any testing with the = Legacy? Experiences?

Kevin Kossi

Legacy = 35%

New York, NY=A0

= --Apple-Mail-22--576680509--