Return-Path: Sender: (Marvin Kaye) To: lml Date: Mon, 07 Jul 2003 12:05:08 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m07.mx.aol.com ([64.12.136.162] verified) by logan.com (CommuniGate Pro SMTP 4.1b8) with ESMTP id 2458351 for lml@lancaironline.net; Mon, 07 Jul 2003 12:02:51 -0400 Received: from Sky2high@aol.com by imo-m07.mx.aol.com (mail_out_v36_r1.1.) id q.18d.1cbcc03e (16781) for ; Mon, 7 Jul 2003 12:02:50 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <18d.1cbcc03e.2c3af3a9@aol.com> X-Original-Date: Mon, 7 Jul 2003 12:02:49 EDT Subject: Re: [LML] Re: Spinner Back Plate Incident X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1057593769" X-Mailer: 9.0 for Windows sub 330 -------------------------------1057593769 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I also had cracks and re-riveting problems (heads popped off), even with the doublers. I was told that bucked rivets are stronger than squeezed rivets. I even had the backplate cracks welded for temporary flight use and those cracked in 20 hours. Last year I bought a polished aluminum spinner replacement from Aircraft Spruce that works with the Hartzell compact hub constant speed prop on my 320. 3/4 inch can be cut off the back for a better fit and I had to cut my own forward bulkhead. I also purchased the Lancair doubler plates for the supplied backplate. While this was a lot of work, I am very pleased with the result and it is rock-solid with the bulkhead. I don't think I will see cracks in the backplate anymore. Scott Krueger 2003 Air Venture Cup Racer #94 Sky2high@aol.com LNC2 N92EX IO320 Aurora, IL (KARR) -------------------------------1057593769 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

I also had cracks and re-riveting problems (heads popped off), even wit= h=20 the doublers. I was told that bucked rivets are stronger than squeezed= =20 rivets. I even had the backplate cracks welded for temporary flight us= e=20 and those cracked in 20 hours.

Last year I bought a polished aluminum spinner replacement from Aircraf= t=20 Spruce that works with the Hartzell compact hub constant speed prop on my=20 320. 3/4 inch can be cut off the back for a better fit and I had to cu= t my=20 own forward bulkhead. I also purchased the Lancair doubler plates for=20 the supplied backplate. While this was a lot of work, I am very=20 pleased with the result and it is rock-solid with the bulkhead. I= don't=20 think I will see cracks in the backplate anymore.

Scott=20 Krueger
2003 Air Venture Cup Racer #94
Sky2high@aol.com
LNC2 N92EX=20= IO320=20 Aurora, IL (KARR)

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