X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop: No license found, only first 5 messages were scanned Return-Path: Received: from smtp109.sbc.mail.re2.yahoo.com ([68.142.229.96] verified) by logan.com (CommuniGate Pro SMTP 5.1c.1) with SMTP id 1201237 for flyrotary@lancaironline.net; Wed, 21 Jun 2006 21:18:04 -0400 Received-SPF: neutral receiver=logan.com; client-ip=68.142.229.96; envelope-from=sladerj@bellsouth.net Received: (qmail 91067 invoked from network); 22 Jun 2006 01:17:19 -0000 Received: from unknown (HELO ?192.168.1.65?) (taskswap@sbcglobal.net@75.17.32.150 with plain) by smtp109.sbc.mail.re2.yahoo.com with SMTP; 22 Jun 2006 01:17:19 -0000 Message-ID: <4499EF9C.5050502@bellsouth.net> Date: Wed, 21 Jun 2006 21:17:16 -0400 From: John Slade User-Agent: Thunderbird 1.5.0.4 (Windows/20060516) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Ivoprop References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit >John Slade seems to have good experience with his, on a turbo rotary cozy. Well it certainly makes take off from a short field easier, but I can't really speak about high speed cruise. I haven't pushed it at speed to see what it'll do yet. John David Staten wrote: > Dave, > What are you putting it on? As in.. pusher.. tractor.. fast mover.. > slow mover.. John Slade seems to have good experience with his, on a > turbo rotary cozy. His is in-flight adjustable, without the constant > speed option. > > However, Tracy himself used an Ivo on his rotary RV4 and he feels > that it wasn't up to the task, and caused a performance penalty over > over 10 knots on the high end cruise. > > Theories abound about the conflicting results.. Some have > speculated that the canard fuselage blankets/blanks the inner portion > of the prop disc, which doesnt change pitch when the IVO is adjusted. > This may be a source of flat plate drag area on tractor's where this > area is exposed to the oncoming slipstream.. > > I've got an Ivo Magnum sitting on the back of our Velocity, but its > just for show for the moment.. havent fired the engine up yet. > > Dave Staten > > Ed Anderson wrote: > >> Dave, I have absolute no experience with any prop other than the >> fixed pitch wood Performance Propellers. Several guys on this list, >> however do have in-flight adjustable IVO props, so they will probably >> respond. >> >> Ed >> >> ----- Original Message ----- >> *From:* hoursaway1@comcast.net >> *To:* Rotary motors in aircraft >> *Sent:* Monday, June 19, 2006 6:58 PM >> *Subject:* [FlyRotary] Ivoprop >> >> Ed; This is Dave Cook, we met at several Sun-n-Fun flyin's >> including this year. Do you (or anyone else reading) know anything >> about the Ivoprop magnum inflight adjustable, am still shopping >> for a prop, will need to make a choice VERY soon. Application will >> be; RV6A 13B Turrentine build w/mods done, RWS EC2, EM2 & >> PSRU-B, 3.5" throttlebody. Thanks, David. >> > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >