---------------------------------------------------------- Seaplane-List Digest Archive --- Total Messages Posted Wed 04/04/07: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:30 PM - Re: Re: Use of props (Paul Seehafer) ________________________________ Message 1 _____________________________________ Time: 02:30:24 PM PST US From: "Paul Seehafer" Subject: Re: Seaplane-List: Re: Use of props Larry, I believe they are 72 inch diameter 3 blade mediums. Paul ----- Original Message ----- From: Larry/Cathy Boone To: seaplane-list@matronics.com Sent: Thursday, March 29, 2007 11:47 PM Subject: Re: Seaplane-List: Re: Use of props Do Not Archive Thanks Paul for sharing your experience and information. Do you remember the length of their IVO props? ----- Original Message ----- From: Paul Seehafer To: seaplane-list@matronics.com Sent: Thursday, March 29, 2007 1:20 PM Subject: Re: Seaplane-List: Re: Use of props Larry, I fly the IVO 3 blade lightweight blade on my amphibious Kitfox 4 with a 912ul. It works very well, but you do have to make sure you use the stainless leading edge tape or water erosion will destroy the fibreglass blades. My Kitfox is a bit underfloated, so my prop sees a lot of water. But the prop handles it just fine with the metal tape (although you should plan on replacing the tape every year or so as it tends to crack from the blade twisting a bit in flight) After flying a Warp prop myself on an amphibious Rans S-7 with a 912s on it, I would agree the Warp drive prop is superior when it comes to erosion. But I am pretty convinced the IVO prop will outperform the Warp for thrust. Plus the IVO is lighter, therefore you don't have gear box issues with it like you might have with the Warp. If I were you I would just fly the plane using all 3 blades of that medium IVO. I have three friends flying the medium 3 blade IVO on 912s powered Highlanders that are amphibs, and they all love the prop. Particularly the power and the smoothness. (fwiw -they previously used the significantly more expensive sensenich 2-blade ground adjustable prop designed specifically for the 912uls, but they like the IVO better) To tell you how well the IVO's perform, get this; My Model 4 amphib (incidentally with only 80 hp) will go 118 mph flat out. Now remember, that is on floats! (see attached pic) My reduced cruise speed (5000 rpm) is between 100-105 mph TAS. And it will climb with me and a full tank of fuel on a warm day at 1400 fpm. I've not found another combination of engine and prop that will do that on a floatplane. So I am pretty well sold on the 912 and the IVO combination. And fwiw - I do have a 912s that I plan on bolting in place of my 80 hp one of these days. And when I do, I will be installing an IVO 3 blade medium on that new engine (can seaplane pilots ever have enough power?) When I have this combination installed you just might see me out flying alongside my Cessna 180 and 185/206 floatplane buddies Paul Seehafer ----- Original Message ----- From: Larry/Cathy Boone To: seaplane-list@matronics.com Sent: Thursday, March 29, 2007 12:50 AM Subject: Re: Seaplane-List: Re: Use of props I would like some opinions, I have an S5 Kitfox and will be putting a 912ULS on in the near future. I also purchased an IVO 72" ground adjustable 3 blade, medium weight. I was thinking of mounting the IVO in the 2 blade configuration to save weight and hoping to put the plane on floats in the future. Does anyone have any experience testing the difference in performance between the 2 and 3 blade configuration? href="http://www.matronics.com/Navigator?Seaplane-List">http://www.matr onics.com/Navigator?Seaplane-List href="http://forums.matronics.com">http://forums.matronics.com ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message seaplane-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Seaplane-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/seaplane-list Browse Digests http://www.matronics.com/digest/seaplane-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.