X-Virus-Scanned: clean according to Sophos on Logan.com From: "Ed Anderson" Received: from [107.14.166.231] (HELO cdptpa-oedge-vip.email.rr.com) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 6890429 for flyrotary@lancaironline.net; Wed, 21 May 2014 08:40:09 -0400 Received-SPF: pass receiver=logan.com; client-ip=107.14.166.231; envelope-from=eanderson@carolina.rr.com Return-Path: Received: from [174.110.171.30] ([174.110.171.30:51934] helo=EdPC) by cdptpa-oedge01 (envelope-from ) (ecelerity 3.5.0.35861 r(Momo-dev:tip)) with ESMTP id 1D/66-31957-68E9C735; Wed, 21 May 2014 12:39:35 +0000 Message-ID: To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Spline failure on Egg Sube PSRU Date: Wed, 21 May 2014 08:39:02 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01CF74D0.1E44F910" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 16.4.3528.331 X-MimeOLE: Produced By Microsoft MimeOLE V16.4.3528.331 X-RR-Connecting-IP: 107.14.168.118:25 X-Cloudmark-Score: 0 This is a multi-part message in MIME format. ------=_NextPart_000_0043_01CF74D0.1E44F910 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Don=E2=80=99t know if it has any bearing on the topic, but one thing to = note is that the rotary is much easier on the gear train. There are no = torque reversal regions in its cycle as there are with piston 4 stroke = engines. Also the power impulse is a bit smoother (covers more deg of = rotation) than with a piston engine. So what may survive with the = rotary, may not with a piston engine. Tracy has certainly studied this = area and will undoubtedly have more astute observations. Ed Edward L. Anderson Anderson Electronic Enterprises LLC 305 Reefton Road Weddington, NC 28104 http://www.andersonee.com http://www.eicommander.com From: Bill Bradburry=20 Sent: Tuesday, May 20, 2014 11:45 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Spline failure on Egg Sube PSRU I have the NTSB report on the PSRU failure for the Subes. The file is = too large ~700 kb to send to the list. Anyone interested can email me = and I will send them a copy. I am wondering if there are there any things we can learn about our = PSRUs from this? Does this spline failure bring any ideas for = inspections that we perhaps should do? Tracy?? =20 Bill=20 =20 -------------------------------------------------------------------------= ------- -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html -------------------------------------------------------------------------= ------- No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4592 / Virus Database: 3950/7529 - Release Date: = 05/20/14 ------=_NextPart_000_0043_01CF74D0.1E44F910 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Don=E2=80=99t know if it has any bearing on the topic, but one = thing to note is=20 that the rotary is much easier on the gear train. There are no = torque=20 reversal regions in its cycle as there are with piston 4 stroke = engines. =20 Also the power impulse is a bit smoother (covers more deg of rotation) = than with=20 a piston engine. So what may survive with the rotary, may not with = a=20 piston engine. Tracy has certainly studied this area and will = undoubtedly=20 have more astute observations.

Ed

Edward L.=20 Anderson
Anderson Electronic Enterprises LLC
305 Reefton=20 Road
Weddington, NC=20 28104
http://www.andersonee.com
http://www.eicommander.com

From: Bill Bradburry

Sent: Tuesday, May 20, 2014 11:45 PM

To: Rotary motors in = aircraft

Subject: [FlyRotary] Spline failure on Egg Sube=20 PSRU

I have the = NTSB report=20 on the PSRU failure for the Subes. The file is too large ~700 kb = to send=20 to the list. Anyone interested can email me and I will send them a = copy.

I am = wondering if there=20 are there any things we can learn about our PSRUs from this? Does = this=20 spline failure bring any ideas for inspections that we perhaps should = do? =20 Tracy??

Bill=20

--
Homepage: http://www.flyrotary.com/
Archive and=20 UnSub: =20 http://mail.lancaironline.net:81/lists/flyrotary/List.html

No virus found in this=20 message.
Checked by AVG - www.avg.com
Version: 2014.0.4592 / = Virus=20 Database: 3950/7529 - Release Date: = 05/20/14

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