Return-Path: Received: from rtp-iport-1.cisco.com ([64.102.122.148] verified) by logan.com (CommuniGate Pro SMTP 4.3c1) with ESMTP id 741858 for flyrotary@lancaironline.net; Wed, 16 Feb 2005 15:15:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.102.122.148; envelope-from=echristl@cisco.com Received: from rtp-core-2.cisco.com (64.102.124.13) by rtp-iport-1.cisco.com with ESMTP; 16 Feb 2005 15:27:20 -0500 X-BrightmailFiltered: true X-Brightmail-Tracker: AAAAAA== X-IronPort-AV: i="3.90,90,1107752400"; d="scan'208"; a="37241613:sNHT19158672" Received: from [172.18.179.151] (echristl-linux.cisco.com [172.18.179.151]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id j1GKEdhF016949 for ; Wed, 16 Feb 2005 15:14:40 -0500 (EST) Message-ID: <4213A9B1.90408@cisco.com> Date: Wed, 16 Feb 2005 15:14:41 -0500 From: Ernest Christley User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040929 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Fuel System Design - Jet Pump References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mark R Steitle wrote: >Ernest, >First, I think I'll defer all your questions concerning MAP and throttle >positions to Tracy or Ed. I know that you can have WOT at low rpm that >requires a different amount of fuel as WOT at high rpm. Engine loads >has a lot to do with things, hence the MAP port to the EC-2. The EC-2 >instructions clearly state not to attempt adjusting a/f ratios without a >prop, or some means to load the engine. To do so is a waste of time... >makes sense. > > > Hadn't even considered that. Goose it on a steep hill, and you could easily flood a car engine. The closest we come to that in airplanes is the difference between a prop unstalling on the takeoff run, and running it flat out in cruise. I bet the mixture knob wouldn't be enough to compensate for the difference. Ernest (I'm so glad I won't have to worry about a fuel selector valve.)