Return-Path: Sender: (Marvin Kaye) To: lml Date: Fri, 31 Jan 2003 10:45:50 -0500 Message-ID: X-Original-Return-Path: Received: from mail.indian-creek.net ([209.176.40.9] verified) by logan.com (CommuniGate Pro SMTP 4.0.5) with ESMTP id 2005311 for lml@lancaironline.net; Fri, 31 Jan 2003 10:23:00 -0500 Received: from VAIO (sl11.du.indian-creek.net [209.176.40.27] toucan@78055.com) by mail.indian-creek.net with SMTP (IOA-IPAD 3.70d/96) id 85D3300 for ; Fri, 31 Jan 2003 09:24:03 -0600 X-Original-Message-ID: <004201c2c93c$a00491f0$1b28b0d1@VAIO> From: "Jim Cameron" X-Original-To: "Lancair Mailing List" Subject: Dan Newland re c.g. of the ES X-Original-Date: Fri, 31 Jan 2003 09:22:39 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003B_01C2C90A.4D11E6F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_003B_01C2C90A.4D11E6F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The ES tends to be nose-heavy with the IO-550. I imagine the reason = is that it was originally designed for either the IO-550 or the IO-360. = The nose-heaviness was something of a problem on my first ES, on which I = used the metal Hartzell 3-blade prop. On my current ES I have the = 4-blade MT prop, which is 22 pounds lighter. The c.g. came out about an = inch farther back, and the handling, particularly on final and = touchdown, is much better than the first plane. If you went with a heavier engine, you'd definitely need to balance = up in the tail; otherwise, the c.g. would probably be forward of the = allowed envelope. As for cooling, the cowl inlets are probably plenty big enough. If = someone is having overheating problems, they are probably either having = leakage around their baffling, or have not opened up and flanged the = exhaust outlets at the bottom rear of the cowl. Jim Cameron N143ES ------=_NextPart_000_003B_01C2C90A.4D11E6F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

The ES tends to be = nose-heavy=20 with the IO-550. I imagine the reason is that it was originally = designed=20 for either the IO-550 or the IO-360. The nose-heaviness was = something of a=20 problem on my first ES, on which I used the metal Hartzell 3-blade = prop. =20 On my current ES I have the 4-blade MT prop, which is 22 pounds = lighter. =20 The c.g. came out about an inch farther back, and the handling, = particularly on=20 final and touchdown, is much better than the first plane.

If you went with a = heavier=20 engine, you'd definitely need to balance up in the tail; otherwise, the = c.g.=20 would probably be forward of the allowed envelope.

As for cooling, the = cowl inlets=20 are probably plenty big enough. If someone is having overheating = problems,=20 they are probably either having leakage around their baffling, or have = not=20 opened up and flanged the exhaust outlets at the bottom rear of the=20 cowl.

Jim Cameron

N143ES

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