X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop: No license found, only first 5 messages were scanned Return-Path: Received: from mail32.syd.optusnet.com.au ([211.29.132.63] verified) by logan.com (CommuniGate Pro SMTP 5.1c.1) with ESMTPS id 1208922 for flyrotary@lancaironline.net; Tue, 27 Jun 2006 18:05:43 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.63; envelope-from=lendich@optusnet.com.au Received: from george (d220-237-236-71.dsl.nsw.optusnet.com.au [220.237.236.71]) by mail32.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id k5RM4p9E030498 for ; Wed, 28 Jun 2006 08:04:54 +1000 Message-ID: <002201c69a35$b793aa90$47eceddc@george> From: "george lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Rotor Corner Seals Date: Wed, 28 Jun 2006 08:04:51 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001F_01C69A89.8843A750" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_001F_01C69A89.8843A750 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Kelly, I read the response from Lynn and agree. The solid ones are earlier = corner seals, might even be 12A corner seals, however the later springs = ( under the corner seals) are better than the earlier spring wire ones. BTW solid is a misnomer as they still have the slot but not the round = hole below the slot - I feel they put in the round hole for stress = considerations and to give the corner seal some springiness to help = seal, but it leaves the walls too thin and brittle . George ( down under) In a message dated 6/27/2006 11:22:06 A.M. Eastern Daylight Time, = keltro@att.net writes: Group, I need an opinion from Lynn Hanover and/or anyone else of the = group on the use of solid rotor corner seals in place of the stock seals with the = rubber plug in them........The rubber plugs tend to harden over long term use = because heat and probably become ineffective........IMHO -- Kelly Troyer=20 Dyke Delta/13B/RD1C/EC2=20 You answered your question. You left out more likely to break, but you = have to break one to know that. The newer design seals better early in = the engines life. I don't know of anyone who uses them in high = performance applications. In ported engines the rubber plug can fall = into the port. The early solid corners is what I use. Aircraft engines = have to qualify as high performance from the duty cycle point of view. Lynn E. Hanover ------=_NextPart_000_001F_01C69A89.8843A750 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Kelly,
I read the response from Lynn and agree. The solid ones are earlier = corner=20 seals, might even be 12A corner seals, however the later springs ( under = the=20 corner seals) are better than the earlier spring wire ones.
BTW solid is a misnomer as they still have the slot but not the = round hole=20 below the slot - I feel they put in the round hole for stress=20 considerations and to give the corner seal some springiness to help = seal, but it=20 leaves the walls too thin and brittle .
George ( down under)
In a message dated 6/27/2006 11:22:06 A.M. Eastern Daylight Time, = keltro@att.net writes:
 Group,
      I need an opinion from Lynn = Hanover=20 and/or anyone else of the group on the
use of solid rotor corner seals in place of the stock seals = with the=20 rubber plug in
them........The rubber plugs tend to harden over long term use = because=20 heat and
probably become ineffective........IMHO
--
Kelly Troyer
Dyke=20 Delta/13B/RD1C/EC2
You answered your question. You left out more likely to break, = but you=20 have to break one to know that. The newer design seals better = early in=20 the engines life. I don't know of anyone who uses them in high = performance=20 applications. In ported engines the rubber plug can fall into the = port. The=20 early solid corners is what I use. Aircraft engines have to qualify as = high=20 performance from the duty cycle point of view.
 
Lynn E. Hanover
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