Return-Path: Received: from smtp5.gateway.net ([208.230.117.249]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Tue, 21 Dec 1999 01:57:07 -0500 Received: from oemcomputer (1Cust19.tnt2.coeur-dalene.id.da.uu.net [63.20.49.19]) by smtp5.gateway.net (8.9.3/8.9.3) with SMTP id CAA26036 for ; Tue, 21 Dec 1999 02:01:55 -0500 (EST) Message-ID: <000c01bf4b81$ae1465e0$1331143f@oemcomputer> Reply-To: "dfs" From: "dfs" To: "Lancair List" Subject: Props...Fixed/Variable Pitch...Pros/Cons Date: Mon, 20 Dec 1999 23:04:51 -0800 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> About IVO props: I tried both two and three bladed IVO props on my 235 with the high compression pistons (about 125 HP). While they seemed to give me a real boost for take-off, I didn't put too many hours on them - i.e., enough to get any definitive numbers - because I couldn't keep the stainless steel tape tell-tales from breaking. If you've tried IVO props, you know what these are. In any case, on my airplane, they always broke. Showing that the individual blades were not firmly attached to the hub. IVO himself came to my hangar and checked the torque and then redesigned the hubs to include knurling on the pinch faces. Nothing helped as I always showed broken tell-tales upon landing. Mr. IVO flew with me out of Torrance, Ca. for no more than 20 minutes after the hub modification to be sure that I wasn't doing anything wild. When we landed, the tapes were cracked. He took the prop back and gave me my money back. Nuff said. Dan Schaefer >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html Builders' Bookstore: http://www.buildersbooks.com/lancair >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>