X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost05.isp.att.net ([204.127.217.105] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with ESMTP id 2252276 for flyrotary@lancaironline.net; Thu, 09 Aug 2007 09:22:38 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.105; envelope-from=rusty@radrotary.com Received: from rad (adsl-065-006-194-009.sip.pns.bellsouth.net[65.6.194.9]) by bellsouth.net (frfwmhc05) with SMTP id <20070809132158H0500och0oe>; Thu, 9 Aug 2007 13:21:59 +0000 X-Originating-IP: [65.6.194.9] From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Batteries in rotary RV8 Date: Thu, 9 Aug 2007 08:21:59 -0500 Message-ID: <002301c7da88$4499b540$a301a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0024_01C7DA5E.5BC3AD40" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Importance: Normal Thread-Index: AcfaEQ/vgrozFhUSQdGjvo4mHYvW7QAE5dYg In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0024_01C7DA5E.5BC3AD40 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable For those with or are knowledgeable about the RV8, would you recommend batteries (2xPC680) in the rear or on the firewall assuming renesis = engine with a wood prop.=20 =20 Hi Greg, =20 I've done it both ways with O-360's and heavy props, and both have advantages. The last RV-8 had an O-360 with C/S prop, and I put one = PC680 on the firewall. That puts the plane at the forward CG limit when solo, which is great for carrying passengers and baggage, but not so great for = fun solo flying. =20 =20 There's a lot of room for variation in installation weight, but a = Renesis with a wood prop certainly could (should) come out lighter than an O-360 with C/S prop. As long as you beat the weight by enough to allow for a second battery, then you can certainly put the batteries on the = firewall. Some people are putting batteries in the bottom of the front baggage extension, just to get them off the firewall, and out of the heat, so = that's another option. =20 =20 Before you close up the floors, it might be wise to leave a wire run available for a rear battery, just in case. =20 Cheers, Rusty =20 ------=_NextPart_000_0024_01C7DA5E.5BC3AD40 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
For those with or are = knowledgeable about the=20 RV8, would you recommend batteries (2xPC680) in the rear or on the = firewall=20 assuming renesis engine with a wood prop. 
 
Hi Greg,
 
I've done it both ways with O-360's and heavy = props, and=20 both have advantages.  The last=20 RV-8 had an O-360 with C/S prop, and I put one PC680 on the = firewall.  That=20 puts the plane at the forward CG limit when solo, which is great for = carrying=20 passengers and baggage, but not so great for fun solo=20 flying.  
 
There's a lot of room for variation in = installation=20 weight, but a Renesis with a wood prop certainly could (should) = come out=20 lighter than an O-360 with C/S prop.  As long as you beat the = weight by=20 enough to allow for a second battery, then you can certainly put the = batteries=20 on the firewall.  Some people are putting batteries in the = bottom of=20 the front baggage extension, just to get them off the firewall, and out = of the=20 heat, so that's another option. 
 
Before you close up the floors, it might be = wise to leave a=20 wire run available for a rear battery, just in=20 case.
 
Cheers,
Rusty     <= /DIV> ------=_NextPart_000_0024_01C7DA5E.5BC3AD40--