X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA03.emeryville.ca.mail.comcast.net ([76.96.30.32] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3901886 for flyrotary@lancaironline.net; Tue, 27 Oct 2009 22:42:20 -0400 Received-SPF: none receiver=logan.com; client-ip=76.96.30.32; envelope-from=gregw@onestopdesign.biz Received: from OMTA13.emeryville.ca.mail.comcast.net ([76.96.30.52]) by QMTA03.emeryville.ca.mail.comcast.net with comcast id xpUY1c00317UAYkA32hmBR; Wed, 28 Oct 2009 02:41:46 +0000 Received: from gregiv ([24.6.75.252]) by OMTA13.emeryville.ca.mail.comcast.net with comcast id y2hl1c00L5ScAtC8Z2hlNq; Wed, 28 Oct 2009 02:41:46 +0000 Message-ID: From: "Greg Ward" To: "Rotary motors in aircraft" References: Subject: Prop Loads Date: Tue, 27 Oct 2009 19:43:14 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_04F3_01CA573D.B9279100" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_04F3_01CA573D.B9279100 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hey Troops; Finally in the dyno room building the mount plate to begin testing. = Tracy says that the engine should be tested with the prop on, and this = is kind of hard in a dyno room. We are mounting the engine without the = PSRU, so that we don't tear it up in testing, and instead hooking = directly to the shaft which is loaded by means of a water brake. We can = put any load on it that we want, problem is, how to calculate that prop = load in foot-pounds, at different settings. Talked to Craig Cato, and = he is leaving for Europe, so doesn't have time to run the calcs, and I = am just a dumb high country nail-banger. Any thoughts? Greg Ward Lancair 20B N178RG in progress ------=_NextPart_000_04F3_01CA573D.B9279100 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable =EF=BB=BF

Hey Troops;

Finally in the dyno room building the mount = plate to=20 begin testing. Tracy says that the engine should be tested with = the prop=20 on, and this is kind of hard in a dyno room. We are mounting the = engine=20 without the PSRU, so that we don't tear it up in testing, and instead = hooking=20 directly to the shaft which is loaded by means of a water brake. = We can=20 put any load on it that we want, problem is, how to calculate that prop = load in=20 foot-pounds, at different settings. Talked to Craig Cato, and he = is=20 leaving for Europe, so doesn't have time to run the calcs, and I am just = a dumb=20 high country nail-banger. Any thoughts?

Greg Ward

Lancair 20B N178RG in=20 progress

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