Return-Path: Received: from mtiwmhc26.worldnet.att.net ([204.127.131.51]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with ESMTP id com for ; Thu, 5 Oct 2000 22:01:17 -0400 Received: from lap ([12.74.129.124]) by mtiwmhc26.worldnet.att.net (InterMail vM.4.01.02.39 201-229-119-122) with SMTP id <20001006020823.ELXM5657.mtiwmhc26.worldnet.att.net@lap> for ; Fri, 6 Oct 2000 02:08:23 +0000 From: "John Wright, D.O." To: "LML" Subject: Hartzell propeller limitations Date: Thu, 5 Oct 2000 20:12:31 -0600 Message-ID: Importance: Normal X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Regarding the recent question about information on Hartzell props, I'm not sure if the HC-C2YK-1BF is the scimitar prop that I have on my 4-P, so please excuse this response if I'm not even on the right subject, but I did research that prop a little bit and even communicated with Hartzell about it. What caught my interest is that the prop is not suppose to be operated below 2500 RPMs when the MP is above 30". I went to the Hartzell website and they were kind enough to explain the rationale is that a harmonic is set up along the prop blades secondary to the pulsations set up by the pistons firing that can cause stress and fatigue to the blades. Other than that I would refer you to the manual that comes with the propeller. If you have a specific question please email me and I will look it up for you (the manual is in the hangar at the moment). John Wright 4-P >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>