X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 64 [XX] (50%) X-MAILER: mail headers not consistent with User Agent "Outlook" (50%) SPAMTRICK: obfuscated phone number Return-Path: Received: from fed1rmmtao107.cox.net ([68.230.241.39] verified) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1905176 for flyrotary@lancaironline.net; Tue, 06 Mar 2007 12:03:30 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.39; envelope-from=alventures@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao107.cox.net (InterMail vM.7.05.02.00 201-2174-114-20060621) with ESMTP id <20070306170237.VJAR2394.fed1rmmtao107.cox.net@fed1rmimpo02.cox.net> for ; Tue, 6 Mar 2007 12:02:37 -0500 Received: from BigAl ([72.192.132.90]) by fed1rmimpo02.cox.net with bizsmtp id XV2c1W00B1xAn3c0000000; Tue, 06 Mar 2007 12:02:37 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: 20b vs. Renesis for Lancair ES? Date: Tue, 6 Mar 2007 09:02:39 -0800 Message-ID: <000901c76011$3f3580d0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C75FCE.311240D0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C75FCE.311240D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable BTW; this is with the 9.0:1 compression rotors, and induction and = exhaust designed for packaging without consideration for tuning. So there are likely some more horses in there if you can work at getting them out. =20 Al =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen Sent: Tuesday, March 06, 2007 8:58 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: 20b vs. Renesis for Lancair ES? =20 Al G dynoed his 20B at 295 hp @ 6800 RPM if I remember correctly. (might have been 285) Al chime in if you see this. The 20B is 50% bigger. (or = 1/3 if you prefer) The engine simply doesn't have to be as highly stressed = to produce power. For the ES GET THE 20B. =20 You remember quite correctly; 290 @6800 (sea level, std day, and all = that). More important to me with 2.17 : 1 re-drive, it's about 265 hp at 6300 = (2900 at the prop), and 200 at an easy cruise rpm of 4800. That engine should = go many hours at those conditions. If you want more horses, go with 2.85:1 re-drive. All up FWF weight (w/o prop) is about 425# including coolant and = radiators. I have no first hand experience with the Renesis; but for an ES, I'd go = with the 20B. Al ------=_NextPart_000_000A_01C75FCE.311240D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

BTW; this is with the 9.0:1 = compression rotors, and induction and exhaust designed for packaging without = consideration for tuning. So there are likely some more horses in there if you = can work at getting them out.

Al

-----Original = Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen
Sent: Tuesday, March 06, = 2007 8:58 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = 20b vs. Renesis for Lancair ES?

Al G dynoed his 20B at 295 hp @ 6800 RPM if I = remember correctly. (might have been 285) Al chime in if you see this. The 20B is = 50% bigger. (or 1/3 if you prefer) The engine simply doesn't have to be as = highly stressed to produce power. For the ES GET THE 20B.

You remember quite correctly; 290 @6800 (sea level, std day, and all = that). More important to me with 2.17 : 1 re-drive, it’s about 265 hp at = 6300 (2900 at the prop), and 200 at an easy cruise rpm of 4800. That engine = should go many hours at those conditions. If you want more horses, go with = 2.85:1 re-drive.

All up FWF weight (w/o prop) is about 425# including coolant and = radiators.

I have no first hand experience with the Renesis; but for an ES, I’d = go with the 20B.

Al

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