Submitted by Anonymous on Thu, 10/22/1998 - 23:42 Forums: LML Archive From: Marvin Kaye <marvkaye [at] olsusa.com> Subject: Re: Hydraulic power pack location Date: Thu, 22 Oct 1998 19:42:14 -0400 To: <pine [at] CPro.co.za>, <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Pine.... Re: hydraulic power pack location, I'm sure you'll soon find out that there are several alternative locations being used by various builders. A few of the favored spots seem to be behind the passenger seatback or mounted to the backside of the firewall in 3x0's without a header tank. <Marv> Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 02:29 From: Donald Gordon <BlueSkyComputer [at] compuserve.com> Sender: Donald Gordon <BlueSkyComputer [at] compuserve.com> Subject: Re: Hydraulic power pack location Date: Thu, 22 Oct 1998 22:29:40 -0400 To: Lancair Mail List <lancair.list [at] olsusa.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline X-Mailing-List: lancair.list [at] olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Pine, I have no header tank and I have mounted the hydraulic power pack above the right side rudder pedals (which I've now learned don't work) attached to the top of the forward deck. I've also mounted my battery above the nose gear tunnel with access from a lid cut in the forward deck. I haven't done a weight and balance yet so I'm curious to how this will all work out. I also have a wood prop so I need as much weight forward as I can get. Don Gordon Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 04:35 From: Pieter Pienaar <Pine [at] CPro.co.za> Subject: Hydraulic power pack location Date: Thu, 22 Oct 1998 21:35:19 -0700 To: <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Hi Is it wise to install the power pack behind the baggage bulkhead.??? I will use a wood, carbon fixed pitch prop and are worried about CG Also is that the only place for the 50 amp breaker. Thanks -- Pine Pienaar pine [at] cpro.co.za Lancair 360 #664 Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 13:10 From: by way of Marvin Kaye <marvkaye [at] olsusa.com> <dechaze [at] cardell.com> Subject: Re:Hydraulic power pack location Date: Fri, 23 Oct 1998 09:10:11 -0400 To: <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Pine asks about the best place for the hydraulic powerpack and hardpoints... I put the unit behind the passenger seat on my 360. This was recommended by Orrin at Lancair. It has turned out to be a blessing since you have to monkey with the installation, plumbing, wiring, testing etc. quite a bit. Getting back behind the baggage bulkhead to do all these things would be a real stinker. Othe benefits are that the wiring and plumbing are a little shorter, easier, lighter. Depending on how you want to orient the unit, you'll need to fabricate a small bulkhead to mount the pump against. I cut a hole in the seat for an access panel so that I can get at the system. You'll see all this when you get to that point. Concerning hard points, you have a good idea. Shape doesn't matter, just distribute the loads in a reasonable manner. I generally did mine with the dremel and jig sawed the phenolic but you have a good idea. Somebody else mentioned replacing the nose gear gas strut on the IV when it gets easy to compress. On the 360 the procedure is to test the free fall capability in-flight with the pump disabled. If the strut doesn't push the nose gear down against slipstream, replace it. Does the IV not have this procedure? A list of max. bolt torques is provided in the Lancair 360FB builder's manual in the engine installation chapter (21 I believe). Ed de Chazal Rochester, Michigan Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 16:24 From: Howard "Rusty" Hamer <hamer [at] gv.net> Subject: Hydraulic power pack location Date: Fri, 23 Oct 1998 08:24:28 -0800 To: <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Put the 50amp breaker where you can get to it easily in flight. I had a failure where the solenoid stuck on and the only way to turn the pump off was by pulling the 50amp breaker. I have heard that the pump causes the fluid to overheat and the aircraft fills with smoke after the pump runs for very long. Rusty
Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 02:29 From: Donald Gordon <BlueSkyComputer [at] compuserve.com> Sender: Donald Gordon <BlueSkyComputer [at] compuserve.com> Subject: Re: Hydraulic power pack location Date: Thu, 22 Oct 1998 22:29:40 -0400 To: Lancair Mail List <lancair.list [at] olsusa.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline X-Mailing-List: lancair.list [at] olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Pine, I have no header tank and I have mounted the hydraulic power pack above the right side rudder pedals (which I've now learned don't work) attached to the top of the forward deck. I've also mounted my battery above the nose gear tunnel with access from a lid cut in the forward deck. I haven't done a weight and balance yet so I'm curious to how this will all work out. I also have a wood prop so I need as much weight forward as I can get. Don Gordon
Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 04:35 From: Pieter Pienaar <Pine [at] CPro.co.za> Subject: Hydraulic power pack location Date: Thu, 22 Oct 1998 21:35:19 -0700 To: <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Hi Is it wise to install the power pack behind the baggage bulkhead.??? I will use a wood, carbon fixed pitch prop and are worried about CG Also is that the only place for the 50 amp breaker. Thanks -- Pine Pienaar pine [at] cpro.co.za Lancair 360 #664
Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 13:10 From: by way of Marvin Kaye <marvkaye [at] olsusa.com> <dechaze [at] cardell.com> Subject: Re:Hydraulic power pack location Date: Fri, 23 Oct 1998 09:10:11 -0400 To: <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Pine asks about the best place for the hydraulic powerpack and hardpoints... I put the unit behind the passenger seat on my 360. This was recommended by Orrin at Lancair. It has turned out to be a blessing since you have to monkey with the installation, plumbing, wiring, testing etc. quite a bit. Getting back behind the baggage bulkhead to do all these things would be a real stinker. Othe benefits are that the wiring and plumbing are a little shorter, easier, lighter. Depending on how you want to orient the unit, you'll need to fabricate a small bulkhead to mount the pump against. I cut a hole in the seat for an access panel so that I can get at the system. You'll see all this when you get to that point. Concerning hard points, you have a good idea. Shape doesn't matter, just distribute the loads in a reasonable manner. I generally did mine with the dremel and jig sawed the phenolic but you have a good idea. Somebody else mentioned replacing the nose gear gas strut on the IV when it gets easy to compress. On the 360 the procedure is to test the free fall capability in-flight with the pump disabled. If the strut doesn't push the nose gear down against slipstream, replace it. Does the IV not have this procedure? A list of max. bolt torques is provided in the Lancair 360FB builder's manual in the engine installation chapter (21 I believe). Ed de Chazal Rochester, Michigan
Hydraulic power pack location Submitted by Anonymous on Fri, 10/23/1998 - 16:24 From: Howard "Rusty" Hamer <hamer [at] gv.net> Subject: Hydraulic power pack location Date: Fri, 23 Oct 1998 08:24:28 -0800 To: <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Put the 50amp breaker where you can get to it easily in flight. I had a failure where the solenoid stuck on and the only way to turn the pump off was by pulling the 50amp breaker. I have heard that the pump causes the fluid to overheat and the aircraft fills with smoke after the pump runs for very long. Rusty
Hydraulic power pack location
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Hydraulic power pack location
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