Return-Path: Received: from [69.171.36.121] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WebUser 4.2.1) with HTTP id 403246 for lml@lancaironline.net; Thu, 09 Sep 2004 00:40:18 -0400 From: "Marvin Kaye" Subject: Re: [LML] Re: MT Propellor To: lml X-Mailer: CommuniGate Pro WebUser Interface v.4.2.1 Date: Thu, 09 Sep 2004 00:40:18 -0400 Message-ID: In-Reply-To: <20040909031311.VERO29660.imf22aec.mail.bellsouth.net@mail.bellsouth.net> References: <20040909031311.VERO29660.imf22aec.mail.bellsouth.net@mail.bellsouth.net> MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Transfer-Encoding: 8bit Posted for : Don Gorden, I have the exact same set up, a 3 blade mt CS on a 0-320 in the 235 airframe. I had to go electric since the mount pad (aft on the accessory casefor a hydraulic)would have required extensive mods to the engine mount/firewall.. I concurr with every thing you said about the 3 blade, plus the pitch change at one deg /second keeps you from surging the engine. I had a 2 blade mt originally which after about 100 hrs ground up it's enternals one night and ran towards high RPM, mt said it was a metallurgical problem on their early models..With the 2 blade, I could never get rid of all the vibrations at some rpms. Without actual data tho I do believe the 3 blade is 3 to 4 knots slower in my aircraft, but the 3 blade is my long term choice. The newer 3 blade has low and high pitch mechanical stops and its TBO is now six years. I was based in Oregon up to recently and no prop shop on the West Coast that I delt with would I send my mt back to.. I owned a T-18 Thorp previously and had service errors with a Hartzell CS too.. Honestly, I was told by one Prop supplier that because I was "Experimental" and that he could and did supply undersized prop blades.. Fortunately, we found the problem before installation..Enuf whining..but troops, be aware.. Don Skeele 320J Orlando, FL Lancair 320 - N320DS (800 hours TT) donaldgordon@bellsouth.net