X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [199.185.220.224] (HELO priv-edtnes40.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.3.3) with ESMTP id 971070 for flyrotary@lancaironline.net; Tue, 31 May 2005 19:50:13 -0400 Received-SPF: pass receiver=logan.com; client-ip=199.185.220.224; envelope-from=echolakeresort@telus.net Received: from boucher-oddle24 ([207.194.26.124]) by priv-edtnes40.telusplanet.net (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20050531234926.MRXO16949.priv-edtnes40.telusplanet.net@boucher-oddle24> for ; Tue, 31 May 2005 17:49:26 -0600 Received: from 127.0.0.1 (AVG SMTP 7.0.322 [267.3.0]); Tue, 31 May 2005 16:49:21 -0700 Message-Id: <429CF7FD.00000D.02824@BOUCHER-ODDLE24> Date: Tue, 31 May 2005 16:49:17 -0700 (Pacific Standard Time) X-Mailer: IncrediMail (3001609) From: "Echo Lake Fishing Resort (Georges Boucher)" References: To: Subject: Re: [FlyRotary] 213 mph 75% cruise (was: RX-8 6 port Intake - Like, complicated....) X-FID: FLAVOR00-NONE-0000-0000-000000000000 X-Priority: 3 Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=======AVGMAIL-429CF8010C90=======" --=======AVGMAIL-429CF8010C90======= Content-Type: Multipart/Alternative; boundary="------------Boundary-00=_5UOD24L0000000000000" --------------Boundary-00=_5UOD24L0000000000000 Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Don't forget that 247hp is at 9000rpm, there is probably little differen= ce at 7500rpm. 7500rpm is probably max. wit5h a 2.85:1 re-drive.=0D Georges B.=0D Christavia Mk IV. 13b NA=0D -------Original Message-------=0D =0D From: Rotary motors in aircraft=0D Date: 05/31/05 16:26:25=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] 213 mph 75% cruise (was: RX-8 6 port Intake - Like, complicated....)=0D =0D At 03:56 PM 5/31/2005, you wrote:=0D >=0D >I must say I agree with Tracy on this, after looking at both, the only=0D >difference been power seems ( to me) to be as a result of the complex=0D >porting. As this will be scrapped for a 'home-brew' port arrangement, I=0D >believe the 4 port will be a lot easier to work on - for the average builder!=0D =0D The two extra ports get you 40 extra HP with no additional weigh= t.=0D =0D This is a 20% increase in HP for the trouble of building two mor= e=0D runners on the intake.=0D =0D The top speed for an RV-7 with 247 HP could be 240 MPH, perhaps=0D even more with a skinny cowling. (I realize this is beyond the 230 mph Vn= e,=0D but I was just making a point.....)=0D =0D Regardless, it's fun just to think about a 75% cruise speed of 2= 13=0D mph.=0D =0D Bill Dube'=0D =0D =0D =0D =0D >> Homepage: http://www.flyrotary.com/=0D >> Archive: http://lancaironline.net/lists/flyrotary/List.html=0D =0D =0D --=0D No virus found in this incoming message.=0D Checked by AVG Anti-Virus.=0D Version: 7.0.322 / Virus Database: 267.3.0 - Release Date: 5/30/2005=0D =0D =2E --------------Boundary-00=_5UOD24L0000000000000 Content-Type: Text/HTML; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
 Don't forget that 247hp is at 9000rpm, there is probably littl= e difference at 7500rpm. 7500rpm is probably max. wit5h a 2.85:1 re-drive= =2E
Georges B.
 Christavia Mk IV. 13b NA
-------Original Message-------
 
Date: 05/31/05 16:= 26:25
Subject: [FlyRotar= y] 213 mph 75% cruise (was: RX-8 6 port Intake - Like, complicated....)
 
At 03:56 PM 5/31/2005, you wrote:
>
>I must say I agree with Tracy on this, after looking at both, th= e only
>difference been power seems ( to me) to be as a result of the co= mplex
>porting. As this will be scrapped for a 'home-brew' port arrange= ment, I
>believe the 4 port will be a lot easier to work on - for the ave= rage builder!
 
         The two extra ports= get you 40 extra HP with no additional weight.
 
         This is a 20% incre= ase in HP for the trouble of building two more
runners on the intake.
 
         The top speed for a= n RV-7 with 247 HP could be 240 MPH, perhaps
even more with a skinny cowling. (I realize this is beyond the 230 m= ph Vne,
but I was just making a point.....)
 
         Regardless, it's fu= n just to think about a 75% cruise speed of 213
mph.
 
         Bill Dube'
 
 
 
 
>>  Homepage:  http://www.flyrotary.com/
 
 
--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.322 / Virus Database: 267.3.0 - Release Date: 5/30/2005=
 
.
--------------Boundary-00=_5UOD24L0000000000000-- --=======AVGMAIL-429CF8010C90======= Content-Type: text/plain; x-avg=cert; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Content-Description: "AVG certification" No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.322 / Virus Database: 267.3.0 - Release Date: 5/30/2005 --=======AVGMAIL-429CF8010C90=======--