X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao05.cox.net ([68.230.241.34] verified) by logan.com (CommuniGate Pro SMTP 5.0.7f) with ESMTP id 951411 for flyrotary@lancaironline.net; Mon, 23 Jan 2006 23:14:56 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.34; envelope-from=dale.r@cox.net Received: from [192.168.1.100] (really [68.2.139.17]) by fed1rmmtao05.cox.net (InterMail vM.6.01.05.02 201-2131-123-102-20050715) with ESMTP id <20060124041159.XCYY17838.fed1rmmtao05.cox.net@[192.168.1.100]> for ; Mon, 23 Jan 2006 23:11:59 -0500 Message-ID: <43D5A983.4070408@cox.net> Date: Mon, 23 Jan 2006 21:13:55 -0700 From: Dale Rogers User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Injector pulseing ? Tracy ? References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Dave,

Re:

I am thinking that perhaps the Constant Speed Controller could take a pickup off the Crank Position Sensor for tach sensing as well. It doesnt need to be a strong signal.. just a signal. Just a thought. The Crankshaft positions sensor will give a reading regardless of injector disable or coil disable settings.

Run it by him and see what he thinks...

If all you need is a steady predictable signal, why not mount a
hall-effect transducer next to the ring gear of the flex-plate? If the
timing between the pulses gets shorter the engine is going faster;
longer, the engine is slowing down.

Dale R.