Return-Path: Received: from www.sequoianet.com ([206.242.77.5]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Wed, 14 Jul 1999 03:17:28 -0400 Received: from inet001.cardell.com ([207.87.248.2]) by www.sequoianet.com (Post.Office MTA v3.1.2 release (PO205-101c) ID# 0-51638U1000L1000S0) with SMTP id AAA201 for ; Wed, 14 Jul 1999 03:17:41 -0400 Received: from ccMail by inet001.cardell.com (ccMail Link to SMTP R8.00.01) id AA931901878; Wed, 14 Jul 99 03:19:21 -0500 Message-Id: <9907139319.AA931901878@inet001.cardell.com> Date: Tue, 13 Jul 99 17:37:58 -0500 From: To: Subject: Re: Hydraulic pump location - LNC2 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Bob Wolf asks about mounting the batteries and hydraulic pump in the forward deck area.... In my installation this area is filled with other equipment and the pump and batteries won't fit. I have the header tank, forward hinge canopy system (you need bracket clearance for this option), and 14 inches between the header tank wall and IP forward surface. 14 inches is more than absolutely required but 13 inches would be the minimum. Part of the reason is that I have 3 float switches on the rear of the header tank that stick out a little less than an inch (these could be relocated out of the way). I located the HSI remote gyro in front of the passenger's feet (6+ footers will start to grumble) and put the VMS control unit, voltage regulator, dimmer module and hydraulic cross-over valve above the passenger's legs, just behind the co-pilot instruments. If you go with VMS engine instruments you'll be locating a manifold pressure transducer inside along with a vacuum pressure regulator, fuel filter, altitude encoder, and maybe the fuel boost pump (as I did). Don't forget the heat valve, and brake hydraulic resevoir will be demanding their space. Also, the panel wiring is suprisingly profuse. There is a lot of stuff up here depending on how fully equipped your panel will be. Why not leave the battery and hydraulic pump in the rear, say, right behind the seats, where they are out of the way, so to speak? They tuck neatly on either side of my outback gear style flap actuator and are in the shadow of the seat back. The pound saved in cable and hydraulic tube is not worth the tradeoff in added aggravation in my opinion. And then there are CG questions. Your proposed position is a dramatic shift forward in CG from the plans. You will need a compensating shift from something else (like omitting the header tank as many have done) to bring the CG back. Good luck. Ed de Chazal >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html