X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1873938 for flyrotary@lancaironline.net; Wed, 28 Feb 2007 10:36:17 -0500 Received-SPF: none receiver=logan.com; client-ip=205.152.59.70; envelope-from=rusty@radrotary.com Received: from ibm67aec.bellsouth.net ([65.6.194.9]) by imf22aec.mail.bellsouth.net with ESMTP id <20070228153504.KSBK10815.imf22aec.mail.bellsouth.net@ibm67aec.bellsouth.net> for ; Wed, 28 Feb 2007 10:35:04 -0500 Received: from rd ([65.6.194.9]) by ibm67aec.bellsouth.net with ESMTP id <20070228153506.EKBH8793.ibm67aec.bellsouth.net@rd> for ; Wed, 28 Feb 2007 10:35:06 -0500 From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: engine mount 4130 vs 304 SS Date: Wed, 28 Feb 2007 09:35:06 -0600 Message-ID: <000a01c75b4e$05c34b10$6e01a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C75B1B.BB28DB10" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 Importance: Normal Thread-Index: AcdbSzE7DG906xtIR9mgNVQ+X64LIQAAheYg In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C75B1B.BB28DB10 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit The 4130 can be gas welded. It will last longer than you will, if it is dry inside when welded. It is stronger than stainless in the same section. You can wash the inside with Linseed oil and weld the hole shut when finished. Then it will outlast all of us. You can use scrap 4130 from aircraft salvage. You can fix it anywhere there is a gas torch. Not just a TIG set. Rare at little airports. Check the Dillsburg aeroplane co. In Dillsburg Pa. for best new prices. Thanks for the comments Lynn. I only have TIG to weld with, and the gyro won't be traveling unless it's on a trailer, so weldability isn't an issue. I did figure that 4130 was stronger, but don't know if it's enough to matter, particularly since I'll be probably using 2-3 times the size I really need. Fortunately, the quantity I need is so small that I won't be shopping around for price. I'll just order from McMaster Carr, and have it next day via UPS ground. Gotta love the way that works :-) Cheers, Rusty ------=_NextPart_000_000B_01C75B1B.BB28DB10 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
The 4130 can be gas welded. It will last longer than you will, if = it is dry=20 inside when welded.
 
It is stronger than stainless in the same section.
 
You can wash the inside with Linseed oil and weld the hole shut = when=20 finished. Then it will outlast all of us. You can use scrap 4130 from = aircraft=20 salvage.
 
You can fix it anywhere there is a gas torch. Not just a TIG set. = Rare at=20 little airports.
 
Check the Dillsburg aeroplane co. In Dillsburg Pa. for best new=20 prices. 
 
 
Thanks for = the comments=20 Lynn.   I only have TIG to weld with, and the gyro won't be = traveling=20 unless it's on a trailer, so weldability isn't an issue.  I did = figure that=20 4130 was stronger, but don't know if it's enough to matter, particularly = since=20 I'll be probably using 2-3 times the size I really need.  =20 Fortunately, the quantity I need is so small that I won't be shopping = around for=20 price.  I'll just order from McMaster Carr, and have it next day = via UPS=20 ground.  Gotta love the way that works :-)
 
Cheers,
Rusty
------=_NextPart_000_000B_01C75B1B.BB28DB10--