X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Received: from mail15.syd.optusnet.com.au ([211.29.132.196] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTPS id 2052607 for flyrotary@lancaironline.net; Fri, 18 May 2007 23:02:01 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.196; envelope-from=lendich@optusnet.com.au Received: from george (d211-29-179-20.dsl.nsw.optusnet.com.au [211.29.179.20]) by mail15.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id l4J31ISG029676 for ; Sat, 19 May 2007 13:01:20 +1000 Message-ID: <002a01c799c1$faaa6f80$14b31dd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Single Rotor update Date: Sat, 19 May 2007 13:01:19 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0027_01C79A15.CB2A0D70" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0027_01C79A15.CB2A0D70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Today, I did an engine tear down after the first hr accumulated = running with the new compound side housing. The runs were about 7 to 8 min each. This is the time it takes the = engine on the test stand to heat up to max temperature, which was over = 200F on water and oil. There was never a leak of water or oil during the tests.=20 As the inspection indicated, the O-Ring seal around the bearing area = was as it was when installed. The clamping of the cast iron insert did = not show any movements. It looks like the compound side housing with the floating insert = periphery is going to work.=20 Next is fixing the test stand for running the engine with gear box and = propeller for max power testing. At the same time, I will incorporate = ancilliary items, such as ignition, exhaust, fuel system, cooling and = motor mount. Richard Sohn N2071U Richard, Very good outcome - will you give the weight difference between the = cast iron and the composite housing. George (down under) -------------------------------------------------------------------------= ----- ------=_NextPart_000_0027_01C79A15.CB2A0D70 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
Today, I did an engine tear down = after the first=20 hr accumulated running with the new compound side = housing.
The runs were about 7 to 8 min = each. This is=20 the time it takes the engine on the test stand to heat up to max = temperature,=20 which was over 200F on water and oil.
 
There was never a leak of water or = oil during the=20 tests.
 
As the inspection indicated, = the O-Ring seal=20 around the bearing area was as it was when installed. The clamping of = the cast=20 iron insert did not show any movements.
 
It looks like the compound side = housing with the=20 floating insert periphery is going to work.
 
Next is fixing the test stand for = running the=20 engine with gear box and propeller for max power testing. At the same = time, I=20 will incorporate ancilliary items, such as ignition, exhaust, fuel = system,=20 cooling and motor mount.
 
Richard Sohn
N2071U

Richard,
Very good outcome - will you give the = weight=20 difference between the cast iron and the composite = housing.
George (down under)

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