X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 08 Jun 2010 21:31:55 -0400 Message-ID: X-Original-Return-Path: Received: from qmta03.westchester.pa.mail.comcast.net ([76.96.62.32] verified) by logan.com (CommuniGate Pro SMTP 5.3.7) with ESMTP id 4340766 for lml@lancaironline.net; Tue, 08 Jun 2010 17:24:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.62.32; envelope-from=mjrav@comcast.net Received: from omta22.westchester.pa.mail.comcast.net ([76.96.62.73]) by qmta03.westchester.pa.mail.comcast.net with comcast id TP2R1e00E1ap0As53ZPZi8; Tue, 08 Jun 2010 21:23:33 +0000 Received: from mjr ([24.2.137.82]) by omta22.westchester.pa.mail.comcast.net with comcast id TZPY1e00M1mqhrL3iZPYLr; Tue, 08 Jun 2010 21:23:32 +0000 X-Original-Message-ID: <006301cb0751$2690a470$6401a8c0@mjr> From: "Mark Ravinski" X-Original-To: "Lancair Mailing List" Subject: LNC2 warning and a question X-Original-Date: Tue, 8 Jun 2010 17:25:42 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0060_01CB072F.9F313290" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.2001 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.2001 This is a multi-part message in MIME format. ------=_NextPart_000_0060_01CB072F.9F313290 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable It seems my nose gear failure was at least partially caused by an = overcenter link that was never properly adjusted. To be more precise, the cylinder extension put down pressure on the link = when down and locked. Combine this pressure with the air spring and lots of landings over 20 = years - and it failed with one firm landing in gusty wind. Chris Zavatson suggested I look into the extension length and pressure - = thank you very much. And, Angier Ames told me he solved the problem by disassembling the = cylinder and putting a shim inside to limit the down travel. Thanks for that too. Does anyone else have another suggestion. I've measured my linkage = already and am planning to add a shim. I can see where this problem might develop if the locknut that holds the = rod end becomes loose. This would allow the cylinder rod to unscrew = itself in time making the extended length greater. This locknut is = completely hidden when assembled. be safe, Mark Ravinski LNC2 1484 hrs ------=_NextPart_000_0060_01CB072F.9F313290 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

It seems my nose gear failure was at = least=20 partially caused by an overcenter link that was never properly=20 adjusted.

To be more precise, the cylinder = extension put down=20 pressure on the link when down and locked.

Combine this pressure with the air = spring and lots=20 of landings over 20 years - and it failed with one firm landing in gusty = wind.

Chris Zavatson suggested I look into = the extension=20 length and pressure - thank you very much.

And, Angier Ames told me he = solved the=20 problem by disassembling the cylinder and putting a shim inside to limit = the=20 down travel.

Thanks for that = too.

Does anyone else have another=20 suggestion. I've measured my linkage already and am = planning to add=20 a shim.

I can see where this problem = might develop if=20 the locknut that holds the rod end becomes loose. This would allow = the=20 cylinder rod to unscrew itself in time making the extended length = greater. =20 This locknut is completely hidden when assembled.

be safe,

Mark Ravinski LNC2 = 1484=20 hrs

------=_NextPart_000_0060_01CB072F.9F313290--