Return-Path: Received: from [65.54.249.27] (HELO OMC2-S17.phx.gbl) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 829068 for flyrotary@lancaironline.net; Tue, 29 Mar 2005 17:00:00 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.249.27; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.169.58]) by OMC2-S17.phx.gbl with Microsoft SMTPSVC(6.0.3790.211); Tue, 29 Mar 2005 13:59:14 -0800 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 29 Mar 2005 13:59:14 -0800 Message-ID: Received: from 4.174.4.132 by BAY3-DAV28.phx.gbl with DAV; Tue, 29 Mar 2005 21:59:14 +0000 X-Originating-IP: [4.174.4.132] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: AN fittings.. Date: Tue, 29 Mar 2005 16:59:12 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004A_01C53480.A20211B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Tue, 29 Mar 2005 16:59:12 -0500 X-OriginalArrivalTime: 29 Mar 2005 21:59:14.0419 (UTC) FILETIME=[8BC89430:01C534AA] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_004A_01C53480.A20211B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable This same issue was recently discussed in Van's newsletter. Their = position was that aluminum fittings were and are specified and used by = Lycoming and OEM aircraft manufacturers. They are not mandated by FAA = or Part 23 regs. They felt aluminum was just fine. =20 OTOH, the only fittings I found for the main engine oil connections were = Racing Beat's and they are steel. Tracy =20 Lehanover@aol.com wrote: >In a message dated 3/29/2005 10:14:16 AM Central Standard Time,=20 >Dastaten@earthlink.net writes: > ><< And what is/was the rationale for not using AL fittings ? > =20 > Dave >> > >Fatigue.=20 > >Aluminum has a short fatigue life.=20 >(SNIP) > >Lynn E. Hanover > =20 > OK... now.. what about for fittings/aluminum lines that appear NOT to = be=20 subjected to flex loads but still on the engine. For instance, running = from a rigidly mounted PSRU to the engine block.. = http://www.rotaryresources.com/modules.php?set_albumName=3Dalbum04&op=3Dm= odload&name=3Dgallery&file=3Dindex&include=3Dview_album.php This should be a pic of a rotary with Tracy's PSRU on it, from Bruce's = webpage. Can I run AL tubing to AL fittings from an AL block to the AL = PSRU or again, should it be steel for safety (or convention's ) sake.=20 I'm really not HUNG UP on AL.. i just dont want to have to buy ANY = part=20 more than once...and I'm getting ready to go buy parts. =20 Dave >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_004A_01C53480.A20211B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

This same issue was recently discussed in Van's = newsletter. =20 Their position was that aluminum fittings were and are specified and=20 used by Lycoming and OEM aircraft manufacturers. They are not = mandated by FAA or Part 23 regs. They felt aluminum was just = fine. =20

OTOH, the only fittings I found for the main engine oil connections = were=20 Racing Beat's and they are steel.

Tracy

Lehanover@aol.com = wrote:

>In a=20 message dated 3/29/2005 10:14:16 AM Central Standard Time,=20
>Dastaten@earthlink.net writes:
>
><< And = what is/was=20 the rationale for not using AL fittings ?
>
> Dave=20 >>
>
>Fatigue.
>
>Aluminum has a short = fatigue=20 life.
>(SNIP)
>
>Lynn E. Hanover
> =20
>
OK... now.. what about for fittings/aluminum lines that = appear NOT=20 to be
subjected to flex loads but still on the engine. For = instance,=20 running
from a rigidly mounted PSRU to the engine = block..

http://www.rotaryresources.com/modules.php?set_albumName=3Dal= bum04&op=3Dmodload&name=3Dgallery&file=3Dindex&include=3D= view_album.php

This=20 should be a pic of a rotary with Tracy's PSRU on it, from Bruce's =
webpage.=20 Can I run AL tubing to AL fittings from an AL block to the AL
PSRU = or=20 again, should it be steel for safety (or convention's ) sake.
I'm = really=20 not HUNG UP on AL.. i just dont want to have to buy ANY part
more = than=20 once...and I'm getting ready to go buy=20 parts.

Dave

>> Homepage: http://www.flyrotary.com/
>&= gt; =20 Archive: http://lancai= ronline.net/lists/flyrotary/List.html

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