X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtpoutwbe04.prod.mesa1.secureserver.net ([208.109.78.206] verified) by logan.com (CommuniGate Pro SMTP 5.3.2) with SMTP id 4116438 for flyrotary@lancaironline.net; Mon, 08 Feb 2010 16:45:20 -0500 Received-SPF: none receiver=logan.com; client-ip=208.109.78.206; envelope-from=aviator@stinsonvoyager.com Received: (qmail 16419 invoked from network); 8 Feb 2010 21:44:44 -0000 Received: from unknown (HELO p3plgemwbe01-07.prod.phx3.secureserver.net) (72.167.218.7) by smtpoutwbe04.prod.mesa1.secureserver.net with SMTP; 8 Feb 2010 21:44:44 -0000 Received: (qmail 8945 invoked by uid 99); 8 Feb 2010 21:44:41 -0000 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8" X-Originating-IP: 207.114.139.254 User-Agent: Web-Based Email 5.2.05 Message-Id: <20100208144441.5337b6f4eaeb0e61a765ba9d0cce9ae1.630fd6cfab.wbe@email01.secureserver.net> From: aviator@stinsonvoyager.com To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] [Re][FlyRotary] More throttle now Scotty, we need it now Date: Mon, 08 Feb 2010 14:44:41 -0700 Mime-Version: 1.0
There was a guy here in San Diego named Maurice Brockington = that had spent a great deal of time and his own money to develop a rotary-b= ased engine. Had it tested many times.  Was targeting replacing turbin= es on twins. Last I saw the engine it was on a stand at EAA Chater 14 = - looked beautiful.  I understand he died of cancer, It would great if= we could find his work. 
 
-------- Original Message --------
Subject: [Fl= yRotary] [Re][FlyRotary] More throttle now Scotty, we need
it now
Fro= m: "Jeff Luckey" <JLuckey@pacbell.net>
Date: Mon, February 08, 201= 0 11:03 am
To: "Rotary motors in aircraft" <flyrotary@lancaironline.n= et>

Lynn Hanover said:
 
The port timing on the Renesis appears to= be quite timid. I would like to see a bit of a developement program for an= aircraft specific engine with earlier opening and later closing of the int= ake port. Maintaining zero overlap is of no value in an airplane, and a big= improvement can be had with just a die grinder.
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Lynn,
 = ;
You=E2=80= =99ve probably forgotten more about engines that I will ever know!
 = ;
Based on y= our quote above (I=E2=80=99m probably dangerous w/ a die grinder), but the = kind of mods you are suggesting seem pretty straight forward.  (beside= s, if I screw it up, it only costs me a rotor housing ;) =
 = ;
My questio= ns are:
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Q1.  = If you start to reshape intake ports on a Renesis, how much can you do befo= re you get into the water jacket?
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Q2.  = In a well-engineered aircraft installation, how much HP is a Renesis making= ?  In and RX-8 they are supposed to make about 225 HP.  Are aircr= aft installations getting that much?
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Q3. If mod= s that you suggest above are made to get intake/exhaust overlap, how much i= ncrease in HP can be expected in an aircraft installation?
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Thanks for= sharing your expertise
 = ;
Jeff Lucke= y
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