X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm18-vm0.bullet.mail.bf1.yahoo.com ([98.139.213.138] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with SMTP id 5510196 for flyrotary@lancaironline.net; Thu, 26 Apr 2012 12:00:31 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.213.138; envelope-from=ceengland@bellsouth.net Received: from [98.139.212.152] by nm18.bullet.mail.bf1.yahoo.com with NNFMP; 26 Apr 2012 15:59:55 -0000 Received: from [209.191.108.96] by tm9.bullet.mail.bf1.yahoo.com with NNFMP; 26 Apr 2012 15:59:55 -0000 Received: from [66.94.237.107] by t3.bullet.mud.yahoo.com with NNFMP; 26 Apr 2012 15:59:55 -0000 Received: from [127.0.0.1] by omp1012.access.mail.mud.yahoo.com with NNFMP; 26 Apr 2012 15:59:55 -0000 X-Yahoo-Newman-Id: 328245.35710.bm@omp1012.access.mail.mud.yahoo.com Received: (qmail 99954 invoked from network); 26 Apr 2012 15:59:55 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bellsouth.net; s=s1024; t=1335455995; bh=J90gp83BIjVNk/IB7Xm9guqrUHGOBK06kuUbx/b5dyA=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:Date:From:User-Agent:MIME-Version:To:Subject:References:In-Reply-To:Content-Type; b=XHTn0JWYJYNujKlA2WISrWD3rKBIVFabWodejU1mPqZLVHq2+kBSOH/mScG8zgGYSvxlIpUjcifz810c2njp5Pnr7DFo1trtxD9TlinK6VhFAR0mXova2JvcV9h97wWNiG3keXO040To3MO/u5pC0bWcgXk0URQOE7pw3nDtRfg= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: ZbVgQTkVM1l3oWqNAreo1PAvm5LB1Py628WwX_U6VX4qc2B 6HbNPlENFTYE5OWaBNh4Hq8LDRzbeCisQ2aTO28n.fZUNg7Hpfe6h78Sm66Z 74CTfBeuayOcFsC6549Rks384Xn.3miYR8CGVvAowInQQ69AtzjvoMxT7sdW bI6hWYAMbdHK8pgTwP27PAXeYomrN2btuWZCIk4Fio344T2lX0uTC9Mb7abC ZrjOUgd9Z5BcqRCDu.JfqYSA.gVtgdsEKG4b1Ra6ybK9WKlsUiVBdwxO.pSq LXyXbSgDORLbDxcwjZGki3trFFkUuag9eetrxgU1yuO2xps7Hkqpjy48Kxl0 XV9XDbNGVNDGB4lCaMEviSYZ2Gulfxq.BwdOUhn799TpRfjR_ZcpQqs3ehPP qhDZtX0hOQhLHn3oSE3LyS4aXsH3GJUe0pUEhcNWnro7lft7pKZky_xNbyXU ZzKDMeo0n6Iwv9fJu9ks- X-Yahoo-SMTP: uXJ_6LOswBCr8InijhYErvjWlJuRkoKPGNeiuu7PA.5wcGoy Received: from [192.168.10.30] (ceengland@74.240.6.113 with plain) by smtp104.sbc.mail.mud.yahoo.com with SMTP; 26 Apr 2012 08:59:54 -0700 PDT Message-ID: <4F9970FA.6000809@bellsouth.net> Date: Thu, 26 Apr 2012 10:59:54 -0500 From: Charlie England User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Fixed Pitch props. References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------070309040300020807040600" This is a multi-part message in MIME format. --------------070309040300020807040600 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit They still make wood props, too, & they would almost certainly be able to hit your RPM/HP/speed target if you can give them good numbers on the HP & real world speed for your airframe. They were able to duplicate the speed of a Bernie Warnke prop (very, very good prop) on an RV-4 I owned about 10 years ago. Charlie On 04/26/2012 12:28 AM, William Jepson wrote: > > Another possibility is Senessich (never could spell that), they have a > new ground adjustable prop. Carbon blades aluminum hub, which is > supposed to be designed around RV speed and HP. They are supposed to > offer a 2 and 3 blade option. Bill Jepson > > On Apr 25, 2012 8:53 PM, "Michael McMahon" > wrote: > > I've been thinking along the same lines. The one person I've > heard of often as a potential builder is Craig Catto, > www.cattoprops.com . Last time I > looked his props were around $3,000, I think, but I have no idea > if that is current. There is also a new possibility, which is to > have the prop manufactured on a resin printer and then wrap it in > carbon fiber. I've done a little research on that front and spoke > to a manufacturer last year at the CAFÉ Electric Flight Symposium > (this weekend in Santa Rosa!) who confirmed that it's possible and > is already being done for military drones. > > Please post your findings! > > Thanks, > > Mike > > *From:*Rotary motors in aircraft > [mailto:flyrotary@lancaironline.net > ] *On Behalf Of *Thomas Giddings > *Sent:* Wednesday, April 25, 2012 6:57 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Fixed Pitch props. > > I am curious what you folks might recommend for a fixed pitch prop > builder for my project. I will have a lot of excess power and do > not think it would be as difficult to get an acceptable level of > performance with a lot less money and simplicity. Your thoughts > > KIND REGARDS > > Thomas Giddings > > n360tg@earthlink.net > > 727 858 1772 > --------------070309040300020807040600 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit They still make wood props, too, & they would almost certainly be able to hit your RPM/HP/speed target if you can give them good numbers on the HP & real world speed for your airframe. They were able to duplicate the speed of a Bernie Warnke prop (very, very good prop) on an RV-4 I owned about 10 years ago.

Charlie

On 04/26/2012 12:28 AM, William Jepson wrote:

Another possibility is Senessich (never could spell that), they have a new ground adjustable prop. Carbon blades aluminum hub, which is supposed to be designed around RV speed and HP. They are supposed to offer a 2 and 3 blade option. Bill Jepson

On Apr 25, 2012 8:53 PM, "Michael McMahon" <afm528@gmail.com> wrote:

I’ve been thinking along the same lines.  The one person I’ve heard of often as a potential builder is Craig Catto, www.cattoprops.com .  Last time I looked his props were around $3,000, I think, but I have no idea if that is current.   There is also a new possibility, which is to have the prop manufactured on a resin printer and then wrap it in carbon fiber.  I’ve done a little research on that front and spoke to a manufacturer last year at the CAFÉ Electric Flight Symposium (this weekend in Santa Rosa!) who confirmed that it’s possible and is already being done for military drones.

 

Please post your findings!

 

Thanks,

 

Mike

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Thomas Giddings
Sent: Wednesday, April 25, 2012 6:57 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Fixed Pitch props.

 

I am curious what you folks might recommend for a fixed pitch prop builder for my project. I will have a lot of excess power and do not think it would be as difficult to get an acceptable level of performance with a lot less money and simplicity. Your thoughts

KIND REGARDS

Thomas Giddings

 

 

 


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