X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost06.isp.att.net ([207.115.11.56] verified) by logan.com (CommuniGate Pro SMTP 5.2.8) with ESMTP id 3204563 for flyrotary@lancaironline.net; Wed, 08 Oct 2008 11:17:14 -0400 Received-SPF: none receiver=logan.com; client-ip=207.115.11.56; envelope-from=keltro@att.net Received: from fwebmail05.isp.att.net ([204.127.218.105]) by isp.att.net (frfwmhc06) with SMTP id <20081008151636H06009ucuhe>; Wed, 8 Oct 2008 15:16:36 +0000 X-Originating-IP: [204.127.218.105] Received: from [64.250.199.41] by fwebmail05.isp.att.net; Wed, 08 Oct 2008 15:16:36 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: Redrive Ratio for a Dyke Delta Date: Wed, 08 Oct 2008 15:16:36 +0000 Message-Id: <100820081516.5819.48ECCED40001221A000016BB22230682229B0A02D29B9B0EBF019D9B040A05@att.net> In-Reply-To: X-Mailer: AT&T Message Center Version 1 (Jul 16 2008) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_5819_1223478996_0" --NextPart_Webmail_9m3u9jl4l_5819_1223478996_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Ernest, Wow !!.......You are going to have a torque monster..........What are you thinking to use for a prop ??...........Sounds like you will need all the diameter and pitch and/or blades you can get.........Have you considered the 3 blade hi pitch (45"-105") "IVO" like Jim Mahr has on his 2.85 to 1 Rotary Delta ??......You might need more diameter than he is using.........My "IVO" is 3 blade, 74 inch but currently has the 30"-90" pitch blades for my 2.85 to 1 redrive (may not be enough pitch)...........<:) -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold -------------- Original message from Ernest Christley : -------------- > Kelly Troyer wrote: > > Ernest, > > Looking very good !!..........Do I detect the vertical fin off-set for a > > left hand > > rotation prop from the photo below ?? > Yes > > ......Which would probably be a 2:17 to 1 > > ratio for your redrive........Inquiring minds want to know..........<:) > 3.17 --NextPart_Webmail_9m3u9jl4l_5819_1223478996_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_5819_1223478996_1" --NextPart_Webmail_9m3u9jl4l_5819_1223478996_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Ernest,

Wow !!.......You are going to have a torque m= onster..........What are you thinking

to use for a prop ??...........Sounds like you will need all the diame= ter and pitch and/or

blades you can get.........Have you considered the 3 blade hi pit= ch (45"-105") "IVO"

like Jim Mahr has on his 2.85 to 1 Rotary Delta ??......You might need= more diameter

than he is using.........My "IVO" is 3 blade, 74 inch but currently ha= s the 30"-90" pitch

blades for my 2.85 to 1 redrive (may not be enough pitch)........= ...<:)

--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d

-------------- Original message from Ernest Christley <echristley@nc.= rr.com>: --------------

> Kelly Troyer wrote:
> &g= t; Ernest,
> > Looking very good !!..........Do I detect the vert= ical fin off-set for a
> > left hand
> > rotation prop = from the photo below ??

> Yes

> > ......Which would probably be a 2:17 to 1
> > ra= tio for your redrive........Inquiring minds want to know..........<:)

> 3.17

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