Return-Path: Received: from mtiwmhc02.worldnet.att.net ([204.127.131.37]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Wed, 29 Dec 1999 09:12:20 -0500 Received: from default- ([12.74.128.147]) by mtiwmhc02.worldnet.att.net (InterMail v03.02.07.07 118-134) with SMTP id <19991229141713.RFY1914@default-> for ; Wed, 29 Dec 1999 14:17:13 +0000 Message-ID: <000c01bf5207$b23f3a00$93804a0c@default-> Reply-To: "John Wright" From: "John Wright" To: "LML" Subject: hartzel scimitar 3 blade prop on the iv-p Date: Wed, 29 Dec 1999 07:19:18 -0700 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I like to fly my iv-p using 30" and about 2200rpm at cruise. In researching these settings I discovered that Hartzel recommends that the engine not be operated with the rpm below 2500 when MP is above 30" due to the harmonics generated. Interesting piece of minutia. John Wright Colorado Springs >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html Builders' Bookstore: http://www.buildersbooks.com/lancair >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>