X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail06.syd.optusnet.com.au ([211.29.132.187] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTPS id 2501199 for flyrotary@lancaironline.net; Thu, 22 Nov 2007 16:44:09 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.132.187; envelope-from=lendich@optusnet.com.au Received: from george (d58-108-86-192.dsl.nsw.optusnet.com.au [58.108.86.192]) by mail06.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id lAMLhMZd017866 for ; Fri, 23 Nov 2007 08:43:24 +1100 Message-ID: <001601c82d50$b5dd4530$c0566c3a@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Ebgine design. Date: Fri, 23 Nov 2007 07:43:22 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0013_01C82DA4.86261BB0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0013_01C82DA4.86261BB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable It is alarming to me that the many combinations of eccentricity and = width have not been developed into a line of power plants with a wide = range of sizes and capabilities. NSU I can understand, operating on a = shoe string. But Mercedes? Ford? GM (when they still did R&D?) Other big names could not overcome an in house bias against anything = without pistons. We should have been way down the road from where we are = now. Ceramic rotors in a high pressure tubocharged engine should have = been here for ten years now. Why are we going ga-ga over an engine that = may be two or three years away. =20 Over 25 years ago BF Goodrich sponsored 2 Lola 616 race cars that had = engines by Polymotor Research, with steel cranks and fasteners. = Everything else was ceramic or plastic. They were reliable and powerful. = Have you heard much about those engines lately? The aluminum in a modern engine should be the heaviest material used. = All of the pieces have been tested to death. Materials performance is = known. With NC grinders, the housings are just a program, not a special = machine. And a constant speed alternator drive for a Hybrid is crying = out for 40 HP rotary the size of a soup can. The John Deer SCORE series of engines was the perfect replacement for = a wide range of old design diesel engines. The Navy likes big gray heavy = and poor performing if they can get it. The big SCORE was offered as a = replacement for the Fairbanks-Morse (Colt) 38 D8 1/8 opposed piston = diesel designed in the 20s, for stationary power.The SCORE engine was = 1/4 the size of the Colt engine with more power.=20 The Navy was not at all interested. Lower cost, Longer life, lower = maintenance, and multi fuel capability were not enough of an attraction = for my friends in the Navy. It is often the case that monumental = decisions are left to very nearly idiots who have no expertise in the = area.=20 Don't get me started.=20 Lynn E. Hanover =20 Lynn, Only goes to prove that Human developments are governed by the chaos = theory. Of course I'm not the only person to think that, I believe it's = been recognised for a long , long time now. Needless to say I agree with you totally, but I gave up stressing = about it a long time ago. George (down under) ------=_NextPart_000_0013_01C82DA4.86261BB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

It is alarming to me that the many combinations of eccentricity = and width=20 have not been developed into a line of power plants with a wide range = of sizes=20 and capabilities. NSU I can understand, operating on a shoe string. = But=20 Mercedes? Ford? GM (when they still did R&D?)

Other big names could not overcome an in house bias against = anything=20 without pistons. We should have been way down the road from where we = are now.=20 Ceramic rotors in a high pressure tubocharged engine should have been = here for=20 ten years now. Why are we going ga-ga over an engine that may be = two or=20 three years away.

Over 25 years ago BF Goodrich sponsored 2 Lola 616 race cars that = had=20 engines by Polymotor Research, with steel cranks and fasteners. = Everything=20 else was ceramic or plastic. They were reliable and powerful.

Have you heard much about those engines lately?

The aluminum in a modern engine should be the heaviest material = used. All=20 of the pieces have been tested to death. Materials performance is = known. With=20 NC grinders, the housings are just a program, not a special machine. = And a=20 constant speed alternator drive for a Hybrid is crying out for 40 HP = rotary=20 the size of a soup can.

The John Deer SCORE series of engines was the perfect = replacement=20 for a wide range of old design diesel engines. The Navy likes big gray = heavy and poor performing if they can get it. The big SCORE was = offered=20 as a replacement for the Fairbanks-Morse (Colt) 38 D8 1/8 opposed = piston=20 diesel designed in the 20s, for stationary power.The SCORE engine was = 1/4 the=20 size of the Colt engine with more power.

The Navy was not at all interested. Lower cost, Longer = life, lower=20 maintenance, and multi fuel capability were not enough of an = attraction for my=20 friends in the Navy. It is often the case that monumental decisions = are left=20 to very nearly idiots who have no expertise in the area.

Don't get me started.

Lynn E. Hanover

Lynn,

Only goes to prove that Human developments are governed by = the chaos=20 theory. Of course I'm not the only person to think that, I believe = it's been=20 recognised for a long , long time now.

Needless to say I agree with you totally, but I gave up stressing = about=20 it a long time ago.

George (down under)

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