X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from outbound-mail-356.bluehost.com ([66.147.249.250] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with SMTP id 3889915 for flyrotary@lancaironline.net; Sun, 18 Oct 2009 10:11:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.147.249.250; envelope-from=jslade@canardaviation.com Received: (qmail 30288 invoked by uid 0); 18 Oct 2009 14:10:53 -0000 Received: from unknown (HELO host296.hostmonster.com) (66.147.240.96) by outboundproxy7.bluehost.com.bluehost.com with SMTP; 18 Oct 2009 14:10:53 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=canardaviation.com; h=Received:Message-ID:Date:From:User-Agent:MIME-Version:To:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding:X-Identified-User; b=tfmb8PnIdpjbifdbsd7w6E6UEplwOHUWpGi32x0Rh7u/z4IfYUkzmJ4jc4FbiR0d1EO6jQV1NHB7XHLqJSHmOATooJXZxeABQuyH1vxqccojdRulB6Cy3LObs6ZlwEHM; Received: from c-76-108-115-200.hsd1.fl.comcast.net ([76.108.115.200] helo=[192.168.1.3]) by host296.hostmonster.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1MzWTF-0001B7-FM for flyrotary@lancaironline.net; Sun, 18 Oct 2009 08:10:53 -0600 Message-ID: <4ADB21E5.3030401@canardaviation.com> Date: Sun, 18 Oct 2009 10:10:45 -0400 From: John Slade User-Agent: Thunderbird 1.5.0.14 (Windows/20071210) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] IVO Prop Question for Chris References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Identified-User: {3339:host296.hostmonster.com:instanu1:canardaviation.com} {sentby:smtp auth 76.108.115.200 authed with jslade+canardaviation.com} Hi Doug,
I'm using the ammeter approach. I don't know the max load, but it sends the ammeter full scale at each end of the range. You quickly learn to see it coming and release the switch at the right point. I believe the breaker is 15 amps. I've only popped the breaker once. I think I got about 20 hrs on the first set of brushes. The second set are still in after a total of 70 hrs on the prop. They are getting close though - thanks for the reminder.

Last week I met a Mike Watson, who been using an IVO on a Franklin 6 powered Velocity for years. He showed me his new brush holder from IVO - it's transparent. Cool - you can see the remaining brush length easily during preflight. I'm going to order one with the new brushes. Mike also has the constant speed unit from IVO and is quite happy with it. I find the manual adjustment easy to use and plan to stay with it.
Regards,
John

DLOMHEIM@aol.com wrote:

>I have the IVO Magnum in flight adjustable 3 blade prop with 45 to 105 inch pitch range.

Chris: Are you using an ammeter to set you pitch by chance? If so how much of load is on it at fine vs. coarse pitch settings? Also have you had to change out your brushes yet? I am hearing we should expect to get about 15 hrs. on them before needing to change them out and wondered if your ground testing had validated that number yet...

Thanks for the information.

Doug Lomheim

RV-9A, 13B, FWF, IVO