Return-Path: Received: from out006.verizon.net ([206.46.170.106] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2750112 for flyrotary@lancaironline.net; Tue, 18 Nov 2003 12:43:00 -0500 Received: from [65.239.57.206] ([67.225.117.113]) by out006.verizon.net (InterMail vM.5.01.05.33 201-253-122-126-133-20030313) with ESMTP id <20031118174258.CUNN1413.out006.verizon.net@[65.239.57.206]> for ; Tue, 18 Nov 2003 11:42:58 -0600 Mime-Version: 1.0 X-Sender: res0c5l1@incoming.verizon.net Message-Id: In-Reply-To: References: Date: Tue, 18 Nov 2003 09:08:21 -0800 To: "Rotary motors in aircraft" From: Ken Welter Subject: [FlyRotary] Re: inline twin engines? Content-Type: multipart/alternative; boundary="============_-1142945033==_ma============" X-Authentication-Info: Submitted using SMTP AUTH at out006.verizon.net from [67.225.117.113] at Tue, 18 Nov 2003 11:42:57 -0600 --============_-1142945033==_ma============ Content-Type: text/plain; charset="us-ascii" ; format="flowed" >In a message dated 11/17/2003 11:21:16 PM Eastern Standard Time, >rotary.coot@verizon.net writes: > >> >>>. For you guys that have backwards planes, how hard would it be >>>to modify a Vari-EZ, or Long-EZ into a push pull configuration, >>>using two single rotor engines? Would this be relatively EZ >>>(sorry), or a major effort? I would be willing to set it up as a >>>single place, flown from the rear seat if that will help with the >>>CG. Since I'm fiberglass challenged, I would be looking to buy a >>>nearly complete project, and modify it from there. Think it will >>>work out ? >>> >> >> >> >> >>>Rusty >>> >> > > >There were two brothers from Brazil (I think) that had two rotaries >in the back of a Rutan design, with over-running clutches, so either >engine could be shut down without a problem. A long time ago. But >it did work fine. > >Lynn E. Hanover There was one down that way that had two Geo engines with counter rotating props, they flew it all the way up to Sun and Fun. They did have problems with resonating vibration problems and that is one of the reasons that I used two different engines so that the frequencies of the two engines were not matched. Ken --============_-1142945033==_ma============ Content-Type: text/html; charset="us-ascii" [FlyRotary] Re: inline twin engines?
In a message dated 11/17/2003 11:21:16 PM Eastern Standard Time, rotary.coot@verizon.net writes:

.   For you guys that have backwards planes, how hard would it be to modify a Vari-EZ, or Long-EZ into a push pull configuration, using two single rotor engines?  Would this be relatively EZ (sorry), or a major effort?  I would be willing to set it up as a single place, flown from the rear seat if that will help with the CG.  Since I'm fiberglass challenged, I would be looking to buy a nearly complete project, and modify it from there.  Think it will work out ?
Rusty



There were two brothers from Brazil (I think) that had two rotaries in the back of a Rutan design, with over-running clutches, so either engine could be shut down without a problem.  A long time ago. But it did work fine.

Lynn E. Hanover

  There was one down that way that had two Geo engines with counter rotating props, they flew it all the way up to Sun and Fun.
 They did have problems with resonating vibration problems and that is one of the reasons that I used two different engines so that the frequencies of the two engines were not matched.
 
  Ken
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