X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from pacmmta52-web.windstream.net ([162.39.147.132] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5100297 for flyrotary@lancaironline.net; Mon, 22 Aug 2011 16:32:09 -0400 Received-SPF: pass receiver=logan.com; client-ip=162.39.147.132; envelope-from=jskmberki@windstream.net Return-Path: X-WS-COS: WSOB806 X-Cloudmark-Category: Undefined:Undefined X-Cloudmark-Analysis: v=1.1 cv=SKy0FE+YTYUrwPegOefqkFHx0OK/nFrHVNLSpnTN42U= c=1 sm=0 a=o1Z-aHc7hUMA:10 a=UT_QgiwtmQIA:10 a=IkcTkHD0fZMA:10 a=CjxXgO3LAAAA:8 a=ayC55rCoAAAA:8 a=Ia-xEzejAAAA:8 a=o2QoyYduAAAA:8 a=7g1VtSJxAAAA:8 a=REudYZV-12u3x5afEyAA:9 a=M5_FBAFFbZrtPr1PHiMA:7 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=rC2wZJ5BpNYA:10 a=EzXvWhQp4_cA:10 a=TlnOPt13aEMA:10 a=S7/Jn1K68yh1/qT9HR9uvg==:117 X-Cloudmark-Score: 0 Received: from [10.135.134.181] ([10.135.134.181:37614] helo=pamxwww06-z01) by pacmmta52 (envelope-from ) (ecelerity 2.2.2.45 r()) with ESMTP id 76/73-04199-8ACB25E4; Mon, 22 Aug 2011 16:31:36 -0400 Message-ID: <20110822163136.UQ97U.125897.root@pamxwww06-z01> Date: Mon, 22 Aug 2011 15:31:36 -0500 From: To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Batteries Cc: Tom Walter In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) Sensitivity: Normal X-Originating-IP: 174.130.116.183 X-Auth-IP: 174.130.116.183 Z 2 ---- Tom Walter wrote:=20 > Joe, Which Bob Knuckles system?=C2=A0 Z19? I realize Ed is happy with one battery, but I like two batteries.=C2=A0 The= THUNK of relays all popping open and the realization of "I turned off the a= lternator,and voltage dropped way too low.... followed with LAND NOW!" woul= d have convinced Ed tohave put the second battery back in! It sure got my a= ttention on why two batteries is a good thing!(Great Story, but I'll let Ed= tell it!) So two batteries, and a BIG RED LIGHT with "low voltage" will go on my pane= l. I did the spread sheet with 17AH batteries and flying time. Add in Night, a= nd noplace to easily land.... two batties seem like a good trade off.=C2=A0= My biggest shockwas the FORD style contactor needed 1Amp draw to remain cl= osed.=C2=A0 Shutting down nonessential, but leaving contactors, PDF, ECU an= d coils....=C2=A0=C2=A0 System draw is around 15 Amps. 17AHimplies you'd ha= ve an hour, but at 15Amp draw... more like 30-40 minutes, hence two batteri= esas 1 hour flying time makes finding a landing strip a little easier.=C2= =A0=20 Tom ________________________________ From: Ed Anderson To: Rotary motors in aircraft Sent: Monday, August 22, 2011 11:20 AM Subject: [FlyRotary] Re: Batteries Joe, I started out using two Concord 25AH RGB each weighing 22 lbs for a to= tal of over 44 lbs of battery (some joked I could get home by using the sta= rt to crank the prop {:>)) !=C2=A0 I then transition to two Odyssey PC-680= 17AH batteries each weighing 14 lbs for a total of 28 lbs.=C2=A0 Then afte= r 6 years of flying with two batteries and never using the second one - exc= ept to help crank on a cold morning, I removed one of them.=C2=A0 Have now = been flying for over 4-5 years with one Odyssey 14lbs.=C2=A0 I swap it out = every two years. Ed -------------------------------------------------- From: Sent: Monday, August 22, 2011 11:59 AM To: "Rotary motors in aircraft" Subject: [FlyRotary] Batteries > What size an type of batteries are required for the rotary?=C2=A0 I am le= aning toward using 2 batteries and use Bob Nuckols system.=C2=A0 Thanks for= any help. >=20 > Joe Berki > Limo EZ >=20 > -- > Homepage:=C2=A0 http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html=20 -- Homepage:=C2=A0 http://www.flyrotary.com/ Archive and UnSub:=C2=A0 http://mail.lancaironline.net:81/lists/flyrotary/L= ist.html