Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 393874 for flyrotary@lancaironline.net; Sun, 05 Sep 2004 09:42:26 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from EDWARD (cpe-069-132-183-211.carolina.rr.com [69.132.183.211]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i85DfqSH008879 for ; Sun, 5 Sep 2004 09:41:53 -0400 (EDT) Message-ID: <003101c4934e$1d5bbca0$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] safety wiring Ross prop bolts Date: Sun, 5 Sep 2004 09:41:57 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine Paul, if you have all metal type (NOT NYLON Inserts) lock-nuts for the bolts and a crush plate with a recess that the heads of the bolts will seat into preventing them from turning, then it is not necessary to safety wire the bolts. That is the way I flew my Ross drive and my current RD-1C drive. However, You must use all metal type lock-nuts! If you do want the safety wire then I suggest get the drilled head type bolts. Drilling the shank can weaken the bolt especially if you have a bit of torque to apply. FWIW Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message ----- From: "paul" To: "Rotary motors in aircraft" Sent: Sunday, September 05, 2004 9:13 AM Subject: [FlyRotary] safety wiring Ross prop bolts > Hi all....On a typical aircraft prop installtion, the heads of the prop > bolts are drilled and then safety wired. This works, because the prop flange > has fixed threaded sleeves into which the prop bolts fasten. On my Ross > PSRU, there are thru-bolts, and instead of the bolts being threaded into a > fixed unit, they go through the crush plate on the engine side of the prop > and have locknuts instead. What might be the best method of securing these > type of prop bolts? Unfortunately, I have seen a few other rotary > installations with a Ross redrive, but never bothered to look to see if the > prop bolts had safety wire, etc. Thanks for any and all suggestions. Paul > Conner, 13b powered SQ2000 transporting to the airport today. > > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html >