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kaarsberg(at)terra.com.br
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 Posted: Sat Apr 28, 2012 2:52 pm Post subject: Battery location |
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All,
Not having had much opportunity to play with my building for too many years, I have for a long time played with the idea of having a battery installed in the tunnel (trigear of course) in some kind of movable fixture allowing to use it as a way of adjusting the CG.
If not in flight, then at least on the ground.
Any thought or comment would be most welcome...
Alex, kit 529.
[quote][b]
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jimpuglise(at)comcast.net
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| Posted: Sat Apr 28, 2012 3:37 pm Post subject: Battery location |
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Alex-
You would have the weight of extra wire that may not be necessary. Best plan is to look at your weight and balance when you get to that point and move the battery to where you need it most. In my case, had to move it to the aft baggage bay. The tail is long enough that you can accomplish a lot with a little weight due to the long arm, so it is easiest to attack it that way. One of the things yo may want to do is install your tail tie down and leave plenty of thread on top of it to fasten a diving weight to if it is necessary. A moveable battery would probably be more trouble than it was worth. Once your airplane is set up, it should not be necessary to adjust the CG, so why go to the trouble of preparing for it?
Jim Puglise
XS - Jabiru 3300
Punta Gorda, FL
From: "Alex Kaarsberg" <kaarsberg(at)terra.com.br>
To: europa-list(at)matronics.com
Sent: Saturday, April 28, 2012 6:50:35 PM
Subject: Battery location
All,
Not having had much opportunity to play with my building for too many years, I have for a long time played with the idea of having a battery installed in the tunnel (trigear of course) in some kind of movable fixture allowing to use it as a way of adjusting the CG.
If not in flight, then at least on the ground.
Any thought or comment would be most welcome...
Alex, kit 529.
[quote]
arget="_blank">http://www.matronics.com/Navigator?Europa-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
[b]
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ptag.dev(at)talktalk.net
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| Posted: Sat Apr 28, 2012 4:29 pm Post subject: Battery location |
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Hi! Alex.
I used to have a Jabiru 3300 six cylinder engine with a very heavy MT CS Prop(32 lbs) and the pair of Odyssey 13 amp hour batteries wouldn’t start it placed in the rear under the luggage bay . Moved them both above the passenger firewall forward foot well with never a problem in over 10 years in fact I replaced them last year since I took fright that they may be likely to let me down. Since then they have stood in my garage and retained their charge so I would guarantee that either singularly would still start my Rotax 914 without re-charging them now.. No disrespect to you intended, but David Joyce put his “head over the parapet” and gave the same good advice. Why do you folks keep ignoring that advice and keep trying to re-invent the wheel ?
If you need to adjust the C of G of your “bird” then put a 9 gallon long range tank behind the seats.!
Hope this comment suits you ?
Best regards
Bob Harrison G-PTAG Kit 337
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Alex Kaarsberg
Sent: 28 April 2012 23:51
To: europa-list(at)matronics.com
Subject: Battery location
All,
Not having had much opportunity to play with my building for too many years, I have for a long time played with the idea of having a battery installed in the tunnel (trigear of course) in some kind of movable fixture allowing to use it as a way of adjusting the CG.
If not in flight, then at least on the ground.
Any thought or comment would be most welcome...
Alex, kit 529.
| Quote: | | http://www.matronics.com/Navigator?Europa-List< - MATRONICS WEB FORUMS - |
01234567
[quote][b]
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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nigel_graham(at)m-tecque.
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| Posted: Sun Apr 29, 2012 12:05 am Post subject: Battery location |
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Hi Bob,
.... and what happens to your C of G as you burn off your 9 gallons of "ballast" in flight?
Nigel 
-------------------------------------
On 29/04/2012 01:28, Bob Harrison wrote:
Snip ...........
If you need to adjust the C of G of your “bird” then put a 9 gallon long range tank behind the seats.!
Hope this comment suits you ?<?xml:namespace prefix = o />
Best regards
Bob Harrison G-PTAG Kit 337
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Alex Kaarsberg
Sent: 28 April 2012 23:51
To: europa-list(at)matronics.com
Subject: Battery location
All,
Not having had much opportunity to play with my building for too many years, I have for a long time played with the idea of having a battery installed in the tunnel (trigear of course) in some kind of movable fixture allowing to use it as a way of adjusting the CG.
If not in flight, then at least on the ground.
Any thought or comment would be most welcome...
Alex, kit 529.
| Quote: | | http://www.matronics.com/Navigator?Europa-List<?xml:namespace prefix = spa==================< - MATRONICS WEB FORUMS - |
01234567
8
BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }
[quote][b]
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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nigel_graham(at)m-tecque.
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| Posted: Sun Apr 29, 2012 12:05 am Post subject: Battery location |
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Hi Bob,
.... and what happens to your C of G as you burn off your 9 gallons of "ballast" in flight?
Nigel
-------------------------------------
On 29/04/2012 01:28, Bob Harrison wrote:
Snip ...........
If you need to adjust the C of G of your “bird” then put a 9 gallon long range tank behind the seats.!
Hope this comment suits you ?<?xml:namespace prefix = o />
Best regards
Bob Harrison G-PTAG Kit 337
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Alex Kaarsberg
Sent: 28 April 2012 23:51
To: europa-list(at)matronics.com
Subject: Battery location
All,
Not having had much opportunity to play with my building for too many years, I have for a long time played with the idea of having a battery installed in the tunnel (trigear of course) in some kind of movable fixture allowing to use it as a way of adjusting the CG.
If not in flight, then at least on the ground.
Any thought or comment would be most welcome...
Alex, kit 529.
| Quote: | | http://www.matronics.com/Navigator?Europa-List<?xml:namespace prefix = spa==================< - MATRONICS WEB FORUMS - |
01234567
8
BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }
[quote][b]
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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kaarsberg(at)terra.com.br
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| Posted: Sun Apr 29, 2012 2:10 am Post subject: Battery location |
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All,
My intention is so far, to build light, to have as modern and lightweight panel as possible, to put a 912 in the front and then to have a basic setup which will allow me to have as much flexibility as I can.
I want to do what I can not to need ANY ballast.
Having seen so many posts talking of the pros and cons of fwd vs. aft battery location, I figured in the middle and adjustable might just give that flexibility in order to optimise speed and economy as well as providing room for as wide a range of applications as I can.
I see no point in the argument that the cables are heavy, if the option then is to place it in the back!
It is as in the rest of our lives, a challenge to be able to talk of problems in a way that can enrich ours and others´ understanding and insight, ego and past decisions can quickly blur our otherwise crystal clear vision of things[img]cid:ECF256DFB6544E2C9D8781F7B3D4053F(at)PapaiPC[/img]
Best regards from sunny Moscow,
Alex, kit 529.
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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