X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from [24.25.9.100] (HELO ms-smtp-01-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 866602 for flyrotary@lancaironline.net; Tue, 12 Apr 2005 16:11:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-185-127.carolina.res.rr.com [24.74.185.127]) by ms-smtp-01-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j3CKAuLw009468 for ; Tue, 12 Apr 2005 16:10:57 -0400 (EDT) Message-ID: <000401c53f9b$bf04f0e0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: The Final? Story on the Engine problem Date: Tue, 12 Apr 2005 16:10:58 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit 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 X-Virus-Scanned: Symantec AntiVirus Scan Engine ----- Original Message ----- From: "echristley" To: "Rotary motors in aircraft" Sent: Tuesday, April 12, 2005 3:40 PM Subject: [FlyRotary] Re: The Final? Story on the Engine problem > > >Photo Apex Departing Slot clearly shows where the missing piece of the > apex > > >seal bent over the straight edge of its slot when it departed. Apparently > > >when it left the clearance was getting less and the departing edge was > > >apparently caught between the lip of the slot and the rotor housing forming > > >a flatten corner. > > > > > Ed, > > How well does the position of the break line up with your exhaust port? Are > there any tiny chips near the break that look like they may have been around > a while? > > I'm thinking of the possibility of a piece of debris chipping the seal in > the vicinity of where it flexes as it crosses over the exhaust hole. Stress > riser, being the unpredicable ^%&# they are, will always give out just as > you cross the limit of not being able to glide home. > A good point, Ernest, I'll have to go back out and check the pieces in better light or better yet bring them in the house where i have a couple of magnifying glasses. Ed