Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 21 Jan 2003 09:39:00 -0500 Message-ID: X-Original-Return-Path: Received: from imo-r06.mx.aol.com ([152.163.225.102] verified) by logan.com (CommuniGate Pro SMTP 4.0.5) with ESMTP id 1993808 for lml@lancaironline.net; Tue, 21 Jan 2003 08:48:16 -0500 Received: from Sky2high@aol.com by imo-r06.mx.aol.com (mail_out_v34.13.) id q.c5.2f715718 (4328) for ; Tue, 21 Jan 2003 08:48:05 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Tue, 21 Jan 2003 08:48:04 EST Subject: Re: [LML]LNC2: Main Gear Unlocking X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_c5.2f715718.2b5ea994_boundary" X-Mailer: AOL 8.0 for Windows US sub 4104 --part1_c5.2f715718.2b5ea994_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 1/21/2003 12:11:27 AM Central Standard Time, CHBAviation@aol.com writes: > Not to dispute what information Orin has provided but, that will be undue > stress on the system that you do not need. > Chuck, You are right. While Lancair provided ample directions on how to set up-stops, there was still no information forthcoming thru the early 90s on setting the down "stops" (physical limit of ram). The down limit should merely be adequate to keep the overcenter links from un-locking. We have heard of several nose tunnel delaminations at the actuator connection point, but sometimes people forget the rash of main gear over center link pivot block delaminations from the main spar - a combination of factors, I think. Fast build, hi tire pressure, rock-hard donuts, over pressure from the actuator trying to rotate the link upwards and a hard landing or excessive side load. The force from the actuator being the last straw. Scott Krueger N92EX --part1_c5.2f715718.2b5ea994_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 1/21/2003 12:11:27 AM Central Standard Time, CHBAviation@aol.com writes:

Not to dispute what information Orin has provided but, that will be undue stress on the system that you do not need. 


Chuck,

You are right.  While Lancair provided ample directions on how to set up-stops, there was still no information forthcoming thru the early 90s on setting the down "stops" (physical limit of ram).  The down limit should merely be adequate to keep the overcenter links from un-locking.  We have heard of several nose tunnel delaminations at the actuator connection point, but sometimes people forget the rash of main gear over center link pivot block delaminations from the main spar - a combination of factors, I think.  Fast build, hi tire pressure, rock-hard donuts, over pressure from the actuator trying to rotate the link upwards and a hard landing or excessive side load.  The force from the actuator being the last straw.

Scott Krueger
N92EX --part1_c5.2f715718.2b5ea994_boundary--