X-Virus-Scanned: clean according to Sophos on Logan.com
X-SpamCatcher-Score:   1 [X]
Return-Path: <daval@iprimus.com.au>
Received: from mx05.syd.iprimus.net.au ([210.50.30.235] verified)
  by logan.com (CommuniGate Pro SMTP 5.1.6)
  with ESMTP id 1845922 for flyrotary@lancaironline.net; Sun, 18 Feb 2007 18:35:43 -0500
Received-SPF: pass
 receiver=logan.com; client-ip=210.50.30.235; envelope-from=daval@iprimus.com.au
Received: from unknown (HELO [192.168.1.8]) ([58.179.209.207])
  by mx05.syd.iprimus.net.au with ESMTP; 19 Feb 2007 10:34:46 +1100
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: AgAAAElx2EU6s9HP/2dsb2JhbAANoUsBAQE
X-IronPort-AV: i="4.14,187,1170594000"; 
   d="scan'208"; a="31951416:sNHT16380931"
Mime-Version: 1.0 (Apple Message framework v624)
In-Reply-To: <list-1845414@logan.com>
References: <list-1845414@logan.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Message-Id: <5bdc4c3561652abfcc99bac73403346a@iprimus.com.au>
Content-Transfer-Encoding: 7bit
From: david mccandless <daval@iprimus.com.au>
Subject: Re: [FlyRotary] Re: Cowling and engine installation RV 7A
Date: Mon, 19 Feb 2007 08:33:36 +0800
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
X-Mailer: Apple Mail (2.624)

>
> -al wick
> Cozy IV powered by Turbo Subaru 3.0R with variable valve lift and cam
> timing.
> Artificial intelligence in cockpit, N9032U 240+ hours from Portland,
> Oregon
> Glass panel design, Subaru install, Prop construct, Risk assessment 
> info:
> http://www.maddyhome.com/canardpages/pages/alwick/index.html

Hi Al,
what is the point in having variable valve lift and cam timing in an 
aircraft engine?
As I understand it, these features are for low speed torque enhancement 
in cars. Not applicable in aircraft engines.
Seems to me you have extra complication and failure modes built in .
BR, Dave McC