Return-Path: Received: from tomcat.al.noaa.gov ([140.172.240.2] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 479287 for flyrotary@lancaironline.net; Tue, 19 Oct 2004 17:10:26 -0400 Received-SPF: none receiver=logan.com; client-ip=140.172.240.2; envelope-from=bdube@al.noaa.gov Received: from PILEUS.al.noaa.gov (pileus.al.noaa.gov [140.172.241.195]) by tomcat.al.noaa.gov (8.12.0/8.12.0) with ESMTP id i9JL9t3E021899 for ; Tue, 19 Oct 2004 15:09:55 -0600 (MDT) Message-Id: <5.2.1.1.0.20041019145532.027b67d0@mailsrvr.al.noaa.gov> X-Sender: bdube@mailsrvr.al.noaa.gov X-Mailer: QUALCOMM Windows Eudora Version 5.2.1 Date: Tue, 19 Oct 2004 15:06:22 -0600 To: "Rotary motors in aircraft" From: Bill Dube Subject: Re: [FlyRotary] Re: EWP In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed I would think that you would want to switch the pump between "low speed" and "high speed" with a simple fixed value electric thermostat. Wire the speed control to give high speed as the default if a wire breaks. Put a switch on the panel to select "Auto" (use the thermostat) or "High" (bypass the controller and thermostat and run the pump directly on 12 volts.) Might be nice to have an indicator on the panel showing the actual pump status (High, Low, or Off)