Return-Path: Received: from [65.54.169.149] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3065756 for flyrotary@lancaironline.net; Fri, 05 Mar 2004 20:42:13 -0500 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 5 Mar 2004 17:42:12 -0800 Received: from 199.183.196.201 by bay3-dav119.bay3.hotmail.com with DAV; Sat, 06 Mar 2004 01:42:12 +0000 X-Originating-IP: [199.183.196.201] X-Originating-Email: [kerrjb@msn.com] X-Sender: kerrjb@msn.com From: "WALTER KERR" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Aluminum AN fittings - Safety (was Re: [FlyRotary] Re: ready to start? Date: Fri, 5 Mar 2004 20:38:28 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0073_01C402F1.D0BF7A40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 8.5 X-MimeOLE: Produced By MSN MimeOLE V8.50.0017.1202 Seal-Send-Time: Fri, 5 Mar 2004 20:38:28 -0500 Message-ID: X-OriginalArrivalTime: 06 Mar 2004 01:42:12.0462 (UTC) FILETIME=[3F0730E0:01C4031C] This is a multi-part message in MIME format. ------=_NextPart_000_0073_01C402F1.D0BF7A40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Giff, Interesting that my new( in 1999) certified O-320 DIA came with aluminum = AN fittings. Bernie Kerr ----- Original Message -----=20 From: Giffen A. Marr=20 To: Rotary motors in aircraft=20 Sent: Friday, March 05, 2004 8:52 AM Subject: [FlyRotary] Re: Aluminum AN fittings - Safety (was Re: = [FlyRotary] Re: ready to start? In certificated aircraft, the requirement is for steel fittings in the engine compartment. Giff Marr LIV-P 10% -----Original Message----- From: David Carter [mailto:dcarter@datarecall.net]=20 Sent: Thursday, March 04, 2004 11:26 AM Subject: [FlyRotary] Aluminum AN fittings - Safety (was Re: = [FlyRotary] Re: ready to start? Paul, You mentioned "aluminum 1/4 NPT to -6AN adapter". It is my = understanding that there is a real risk in using aluminum fittings on engines due to = lack of "fatigue life" robustness of aluminum, compared to steel AN = fittings. There have been cases of these aluminum fittings eventually breaking = off where they are threaded into the engine block. It is my understanding, from reading the "lists" and articles in = Kitplanes & Sport Aviation, that steel fittings are preferred over aluminum - that aluminum can actually be considered a safety hazard. David ----- Original Message -----=20 From: "sqpilot@earthlink" To: "Rotary motors in aircraft" Sent: Thursday, March 04, 2004 7:02 AM Subject: [FlyRotary] Re: ready to start? > Yes, Jim....I have an .040 restrictor in the fitting at the = beginning=20 > of the > line. I simply took the aluminum 1/4 NPT to -6AN adapter, and had it welded > closed. I then drilled the .040 hole through the adapter. I felt it=20 > would be > better to put the adapter just before the hose rather than after it, = > so that > if the hose should develop a leak, it will be after the restrictor. Thanks > for helping me find any possible problems. Paul Conner > > >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0073_01C402F1.D0BF7A40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Giff,

Interesting that my new( in 1999) certified O-320 DIA came with = aluminum AN=20 fittings.

Bernie Kerr

----- Original Message -----

From: Giffen A. Marr

To: Rotary motors in = aircraft

Sent: Friday, March 05, 2004 = 8:52=20 AM

Subject: [FlyRotary] Re: = Aluminum AN=20 fittings - Safety (was Re: [FlyRotary] Re: ready to start?

In certificated aircraft, the requirement is for steel = fittings=20 in the
engine compartment.
Giff Marr
LIV-P=20 10%

-----Original Message-----
From: David Carter=20 [mailto:dcarter@datarecall.net]
Sent: Thursday, March 04, 2004 = 11:26=20 AM
Subject: [FlyRotary] Aluminum AN fittings - Safety (was Re: = [FlyRotary]=20 Re:
ready to start?

Paul,

You mentioned "aluminum = 1/4 NPT=20 to -6AN adapter". It is my understanding
that there is a real = risk in=20 using aluminum fittings on engines due to lack
of "fatigue life" = robustness=20 of aluminum, compared to steel AN fittings.
There have been cases = of these=20 aluminum fittings eventually breaking off
where they are threaded = into the=20 engine block.

It is my understanding, from reading the "lists" = and=20 articles in Kitplanes &
Sport Aviation, that steel fittings are = preferred over aluminum - that
aluminum can actually be considered = a safety=20 hazard.

David

----- Original Message -----
From: "sqpilot@earthlink" <sqpilot@earthlink.net>
To= :=20 "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent:=20 Thursday, March 04, 2004 7:02 AM
Subject: [FlyRotary] Re: ready to=20 start?

> Yes, Jim....I have an .040 restrictor in the = fitting at=20 the beginning
> of
the
> line. I simply took the = aluminum 1/4=20 NPT to -6AN adapter, and had it
welded
> closed. I then = drilled the=20 .040 hole through the adapter. I felt it
> would
be
> = better=20 to put the adapter just before the hose rather than after it,
> = so
that
> if the hose should develop a leak, it will be after = the=20 restrictor.
Thanks
> for helping me find any possible = problems. =20 Paul Conner
>
>

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

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