X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from imo-m25.mx.aol.com ([64.12.137.6] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 1995810 for flyrotary@lancaironline.net; Fri, 20 Apr 2007 10:14:03 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.6; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m25.mx.aol.com (mail_out_v38_r8.1.) id q.d61.74b4e06 (39332) for ; Fri, 20 Apr 2007 10:12:46 -0400 (EDT) From: Lehanover@aol.com Message-ID: Date: Fri, 20 Apr 2007 10:12:45 EDT Subject: Re: [FlyRotary] Re: Single Rotor Testing To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1177078365" X-Mailer: 9.0 Security Edition for Windows sub 5366 X-Spam-Flag: NO -------------------------------1177078365 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 4/20/2007 8:08:10 A.M. Eastern Daylight Time, echristley@nc.rr.com writes: The most interesting fact of this test is the possibility of a power > estimate. Calculated power using a BSFC of .5 is 30 hp. Looking at the > power curve of the LeMans engine, this is about 10% below of what is > shown there. From this, I believe the projected over 100hp at 7500RPM > is within reach. > > Richard Sohn > N2071U Just looking at a dyno sheet from one of my bridge ported 12As shows 218.2 HP at 7,500 RPM, 152.6 foot pounds, 1517 and 1494 EGT, .673 BSFC, 164 degrees oil, 100.1 PSI oil pressure, and A/F of 12.1. This engine is not used at that low an RPM so it is not tuned to be ideal there. It is used between 7,800 RPM (229.4 HP) and 9,600 (242.2 HP) with peak power at 9,400 RPM ( 244.8 HP). With a Pport and some work on tuned lengths, perhaps 120 HP at 7,500 RPM. is available. Sun&Fun is still ongoing. You all should be there. A Renesis engine with a Marcotte reduction is under power each day. Art Rudko Lutz Florida. 1-813-792-2787. Land at Zephyr hills and rent a car. Also buy your tickets at the counter inside. Free Zephyrhills water in the cooler. Very good. Lynn E. Hanover ************************************** See what's free at http://www.aol.com. -------------------------------1177078365 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 4/20/2007 8:08:10 A.M. Eastern Daylight Time,=20 echristley@nc.rr.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>The most=20 interesting fact of this test is the possibility of a power
> estim= ate.=20 Calculated power using a BSFC of .5 is 30 hp. Looking at the
> powe= r=20 curve of the LeMans engine, this is about 10% below of what is
> sh= own=20 there. From this, I believe the projected over 100hp at 7500RPM
> i= s=20 within reach.
> 
> Richard Sohn
>=20 N2071U
Just looking at a dyno sheet from one of my bridge ported 12As shows 21= 8.2=20 HP at 7,500
RPM, 152.6 foot pounds, 1517 and 1494 EGT, .673 BSFC, 164 degrees oil,=20 100.1 PSI oil pressure, and A/F of 12.1.
 
This engine is not used at that low an RPM so it is not tuned to be ide= al=20 there. It is used between 7,800 RPM (229.4 HP) and 9,600 (242.2 HP) with pea= k=20 power at 9,400 RPM ( 244.8 HP).
 
With a Pport and some work on tuned lengths, perhaps 120 HP at 7,500 RP= M.=20 is available.
 
Sun&Fun is still ongoing. You all should be there. A Renesis engine= =20 with a Marcotte reduction is under power each day. Art Rudko Lutz Florida.=20 1-813-792-2787.
 
Land at Zephyr hills and rent a car. Also buy your tickets at the count= er=20 inside. Free Zephyrhills water in the cooler. Very good.
 
Lynn E. Hanover



See w= hat's free at AOL.= com.
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