X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao101.cox.net ([68.230.241.45] verified) by logan.com (CommuniGate Pro SMTP 5.3.2) with ESMTP id 4116843 for flyrotary@lancaironline.net; Mon, 08 Feb 2010 22:10:24 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.45; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao101.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20100209030947.XKCL4995.fed1rmmtao101.cox.net@fed1rmimpo01.cox.net> for ; Mon, 8 Feb 2010 22:09:47 -0500 Received: from willsPC ([68.105.86.80]) by fed1rmimpo01.cox.net with bizsmtp id ff9m1d0071k005Q03f9nE1; Mon, 08 Feb 2010 22:09:47 -0500 X-VR-Score: 0.00 X-Authority-Analysis: v=1.1 cv=qY0/QvRffkjURHWZjC3q+nTs9PdPIIJxYa32KydkvE8= c=1 sm=1 a=oKTPXBTNjUAA:10 a=XruvlouZCDbGUgEaRUiNZQ==:17 a=8I59ToNzAAAA:8 a=YarKIx00AAAA:8 a=Ia-xEzejAAAA:8 a=7g1VtSJxAAAA:8 a=aDfCOVm8eSsysF_B8zUA:9 a=3EahPi_4KCqYl7K2xiMA:7 a=4UnLZ2cxUIwTbIN-f0Ps7IYA-pAA:4 a=5zrLeAV0Z70A:10 a=JGUZ_q8dRz8A:10 a=q03wWUK6tb4A:10 a=EzXvWhQp4_cA:10 a=n65hQ-e1IviSpAs_8dEA:9 a=u9pSAJRhzesLeDVGGAMA:7 a=F9eC7SAA9mXLFjEgspFBQCKtazoA:4 a=XruvlouZCDbGUgEaRUiNZQ==:117 X-CM-Score: 0.00 Message-ID: <13340F921EDA4AA6BECABFD65EDC533E@willsPC> From: "Mike Wills" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: [Re][FlyRotary] More throttle now Scotty, we need it now Date: Mon, 8 Feb 2010 19:09:44 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003A_01CAA8F2.463C2820" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8089.726 This is a multi-part message in MIME format. ------=_NextPart_000_003A_01CAA8F2.463C2820 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Maurice's engine was a second gen 4 port that he had custom built by = Racing Beat for the application. Used to appear on the cover of their = catalog. He claimed that it dyno'ed at 210HP @ 6500RPM. In about 1998 I approached Maurice about bolting his engine on my RV-4 = to try to get some market buzz. He declined and instead made an = arrangement with someone in Idaho to fly it on some sort of high wing = bush plane. It never got installed and it took him about 5 years to get = the engine back. I think when he saw my engine run on my airplane he seriously regretted = not taking me up on the 98 offer. He asked me if I'd consider swapping = engines, but no way at that point. I didn=E2=80=99t realize he'd passed away. Your right, that engine was a = nice piece of work. Wonder what happened to it. Bet its collecting dust = somewhere. Mike Wills RV-4 N144MW From: aviator@stinsonvoyager.com=20 Sent: Monday, February 08, 2010 1:44 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: [Re][FlyRotary] More throttle now Scotty, we = need it now 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-based = engine. Had it tested many times. Was targeting replacing turbines 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.=20 -------- Original Message -------- Subject: [FlyRotary] [Re][FlyRotary] More throttle now Scotty, we need it now From: "Jeff Luckey" Date: Mon, February 08, 2010 11:03 am To: "Rotary motors in aircraft" Lynn Hanover said: =20 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 intake port. Maintaining = zero overlap is of no value in an airplane, and a big improvement can be = had with just a die grinder. =20 =20 =20 =20 Lynn, =20 You=E2=80=99ve probably forgotten more about engines that I will ever = know! =20 Based on your quote above (I=E2=80=99m probably dangerous w/ a die = grinder), but the kind of mods you are suggesting seem pretty straight = forward. (besides, if I screw it up, it only costs me a rotor housing = ;)=20 =20 My questions are: =20 Q1. If you start to reshape intake ports on a Renesis, how much can = you do before you get into the water jacket? =20 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 aircraft installations getting that much? =20 Q3. If mods that you suggest above are made to get intake/exhaust = overlap, how much increase in HP can be expected in an aircraft = installation? =20 =20 Thanks for sharing your expertise =20 Jeff Luckey =20 =20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_003A_01CAA8F2.463C2820 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Maurice's engine was a second gen 4 port that = he had=20 custom built by Racing Beat for the application. Used to appear on the = cover of=20 their catalog. He claimed that it dyno'ed at 210HP @ = 6500RPM.
 
In about 1998 I approached Maurice about = bolting his=20 engine on my RV-4 to try to get some market buzz. He declined and = instead made=20 an arrangement with someone in Idaho to fly it on some sort of high wing = bush=20 plane. It never got installed and it took him about 5 years to get the = engine=20 back.
 
I think when he saw my engine run on my = airplane he=20 seriously regretted not taking me up on the 98 offer. He asked me if I'd = consider swapping engines, but no way at that point.
 
I didn=E2=80=99t realize he'd passed away. = Your right, that=20 engine was a nice piece of work. Wonder what happened to it. Bet its = collecting=20 dust somewhere.
 
Mike Wills
RV-4 N144MW

Sent: Monday, February 08, 2010 1:44 PM
Subject: [FlyRotary] Re: [Re][FlyRotary] More throttle now = Scotty,=20 we need it now

There was a guy here in San Diego named Maurice Brockington = that had=20 spent a great deal of time and his own money to develop a rotary-based = engine.=20 Had it tested many times.  Was targeting replacing turbines on=20 twins. Last I saw the engine it was on a stand at EAA Chater 14 - = looked=20 beautiful.  I understand he died of cancer, It would great if we = could find=20 his work. 
 
-------- Original Message = --------
Subject:=20 [FlyRotary] [Re][FlyRotary] More throttle now Scotty, we need
it=20 now
From: "Jeff Luckey" <JLuckey@pacbell.net>
Date: Mon, = February=20 08, 2010 11:03 am
To: "Rotary motors in aircraft"=20 <flyrotary@lancaironline.net>

Lynn Hanover = said:
 
The port = timing on the=20 Renesis appears to be quite timid. I would like to see a bit of a = developement=20 program for an aircraft specific engine with earlier opening and later = closing=20 of the intake port. Maintaining zero overlap is of no value in an = airplane,=20 and a big improvement can be had with just a die=20 grinder.
 
 
 
 
Lynn,
 
You=E2=80=99ve probably=20 forgotten more about engines that I will ever=20 know!
 
Based = on your quote=20 above (I=E2=80=99m probably dangerous w/ a die grinder), but the kind = of mods you are=20 suggesting seem pretty straight forward.  (besides, if I screw it = up, it=20 only costs me a rotor housing ;)
 
My = questions=20 are:
 
Q1. =  If you=20 start to reshape intake ports on a Renesis, how much can you do before = you get=20 into the water jacket?
 
Q2. =  In a=20 well-engineered aircraft installation, how much HP is a Renesis = making? =20 In and RX-8 they are supposed to make about 225 HP.  Are aircraft = installations getting that much?
 
Q3. = If mods that=20 you suggest above are made to get intake/exhaust overlap, how much = increase in=20 HP can be expected in an aircraft = installation?
 
 
Thanks for sharing=20 your expertise
 
Jeff=20 Luckey
 
 

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