X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rwcrmhc14.comcast.net ([204.127.192.84] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 981968 for flyrotary@lancaironline.net; Sun, 12 Feb 2006 15:20:59 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.192.84; envelope-from=rlwhite@comcast.net Received: from Quail (c-68-35-160-229.hsd1.nm.comcast.net[68.35.160.229]) by comcast.net (rwcrmhc14) with SMTP id <20060212202014m1400de6k1e>; Sun, 12 Feb 2006 20:20:14 +0000 Date: Sun, 12 Feb 2006 13:20:42 -0700 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Another rotary failure Message-Id: <20060212132042.eefde609.rlwhite@comcast.net> In-Reply-To: References: X-Mailer: Sylpheed version 2.2.0beta7 (GTK+ 2.8.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Hi Chuck, I'm sorry to hear about your engine failure, but glad that at least it was a soft failure. No smoke or flames and you were making enough power to extend your glide to an airport. :) I will be very interested in what you find when you tear it down. Bob W. On Sat, 11 Feb 2006 22:26:29 -0700 "Chuck Dunlap" wrote: > Sorry I didn't make to Bill Eslick's for the Rotorfest, I missed by > about one hour. About 30 miles north of San Angelo TX the RPM suddenly > dropped and I could not restore it with any of my emergency procedures. > GPS told me nearest airport was Robert Lee about 15 miles away. I headed > there and landed without incident. > Turning the prop by hand shows almost zero compression in one rotor, > indicating bad/broken apex seals, quite similar to my engine-out > experience 2 1/2 years ago which caused a forced landing near the Grand > Canyon. This time the vibration was not quite as bad, and the RPM > dropped to around 4300 which was still not enough to maintain altitude. > I called my friend with a Glasair and he cam got me and took me home. I > will have to find some time to build another motor and drive 12 hours > back there and swap motors. Or I might drive there, remove the wings and > trailer it back, have not decided yet. > My good friend/mentor/flight instructor is trying to talk me into going > back to a Lycosaurus, and I have to think of some good reasons not to. > Until I get the motor back and torn apart, I wont know what caused the > failure, but I will post anything that I find. > > Regards > Chuck Dunlap > RV-6 13B 535 hours > -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (first engine start 1/7/06) Custom Cables for your rotary installation - http://www.roblinphoto.com/shop/