X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from imf21aec.mail.bellsouth.net ([205.152.59.69] verified) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1912334 for flyrotary@lancaironline.net; Fri, 09 Mar 2007 20:10:33 -0500 Received-SPF: none receiver=logan.com; client-ip=205.152.59.69; envelope-from=rusty@radrotary.com Received: from ibm63aec.bellsouth.net ([65.6.194.9]) by imf21aec.mail.bellsouth.net with ESMTP id <20070310010936.YNOR12401.imf21aec.mail.bellsouth.net@ibm63aec.bellsouth.net> for ; Fri, 9 Mar 2007 20:09:36 -0500 Received: from rd ([65.6.194.9]) by ibm63aec.bellsouth.net with ESMTP id <20070310010936.EKJS1750.ibm63aec.bellsouth.net@rd> for ; Fri, 9 Mar 2007 20:09:36 -0500 From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: engine mount 4130 vs 304 SS Date: Fri, 9 Mar 2007 19:09:38 -0600 Message-ID: <008b01c762b0$c64f7250$6e01a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_008C_01C7627E.7BB50250" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 Thread-Index: AcdioAAkUvwIvn1GSUW2XJp60ehPoAAEFO2w Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_008C_01C7627E.7BB50250 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Hi Rusty, yes, 304 stainless is more difficult to weld and the material = is more brittle. Not that any of these traits can be overcome but 4130 is = just plain more durable and forgiving. =20 =20 Hi Doug, =20 Thanks for the comments. I haven't quite gotten to the point of = deciding what I'll use yet, though I do have the engine mount plate done. Once I = get the gyro frame in front of me, I'll be able to do some real scheming. =20 =20 Rusty (got pictures of the redrive)=20 ------=_NextPart_000_008C_01C7627E.7BB50250 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
Hi Rusty, yes, 304 stainless is more difficult to weld and the = material is=20 more brittle. Not that any of these traits can be overcome but 4130 is = just=20 plain more durable and forgiving.  
 
Hi=20 Doug,
 
Thanks for=20 the comments.  I haven't quite gotten to the point of=20 deciding what I'll use yet, though I do have the engine mount = plate=20 done.  Once I get the gyro frame in front of me, I'll be able = to do=20 some real scheming.  
 
Rusty (got=20 pictures of the redrive) 
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