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ericparlow(at)hotmail.com
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echristley(at)nc.rr.com
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 Posted: Mon Feb 26, 2007 11:47 am Post subject: BMA Power Board? |
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Eric Parlow wrote:
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<ericparlow(at)hotmail.com>
What the are the list's thoughts on the BMA Power Board?
The "list's" thoughts?
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I think the list has been diagnosed as a bipolar schizophrenic, with a
multi-personality disorder and visions of grandeur.
Sorry, couldn't resist. 8*)
I think it is an expensive solution looking for a problem to solve...but
I also have visions of grandeur (and of knowing what I'm talking about).
--
,|"|"|, Ernest Christley |
----===<{{(oQo)}}>===---- Dyke Delta Builder |
o| d |o http://ernest.isa-geek.org |
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CozyGirrrl(at)aol.com
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| Posted: Mon Feb 26, 2007 1:51 pm Post subject: BMA Power Board? |
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In a message dated 2/26/2007 1:51:14 PM Central Standard Time,
echristley(at)nc.rr.com writes:
I think it is an expensive solution looking for a problem to solve...but
I also have visions of grandeur (and of knowing what I'm talking about).
===============================================
Yes, but consider this, Greg's 2 passenger Jet-Cozy has a total of 5 or 6
switches not including the few on his stick grip and radios. I think he had
simplicity in mind.
..Chrissi
CG Products
www.CozyGirrrl.com
Cozy Mk-IV RG 13B-turbo
Plans #957 Chapter? big pieces done, details, details
<BR><BR><BR>**************************************<BR> AOL now offers free
email to everyone. Find out more about what's free from AOL at
http://www.aol.com.
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marcausman
Joined: 08 Feb 2007
Posts: 70
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| Posted: Tue Feb 27, 2007 5:09 pm Post subject: Re: BMA Power Board? |
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Eric, if you're looking for ways to simplify wiring your -10 and have a very capable all-electric aircraft, take a look at www.verticalpower.com. There is lots of information on the web site. Regards, Marc
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_________________
Marc Ausman
http://www.verticalpower.com "Move up to a modern electrical system"
RV-7 IO-390 Flying |
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mbanus(at)hotmail.com
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| Posted: Wed Feb 28, 2007 5:41 am Post subject: BMA Power Board? |
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Eric,
I have a powerboard I'm using with a duel battery electrical system (Z-X) with a Subaru in a Glasair II. As I'm not flying yet I can't give a performance assessment. But it has made it very easy to install the electrical system. I like the idea of the "polyswitches". I have also developed a circuit that lights a green LED above each switch when the switch is on and circuit closed. The LED turns red if the circuit opens with the switch on so I know if power is lost to a circuit.
Mark Banus
[quote][b]
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N6030X(at)DaveMorris.com
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| Posted: Wed Feb 28, 2007 10:59 am Post subject: BMA Power Board? |
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LED indicators above switches makes the panel look very cool. I
thought about that for my airplane, too. But once you fly a while,
you realize that most switches control things that you will know
right away either have power or don't have power.
The fuel pump makes a nice thumping noise when it's got voltage. And
it shows up on the fuel pressure gauge. It's pretty obvious when the
instrument lights have power. The landing light in daylight might
not be obvious, and neither are the strobes, but at night, there's no
doubt whether they have voltage. The pitot heat when kicked on will
make a nice jump in the voltmeter or ammeter. That really only
leaves the "arm nukes" switch that I would need an LED indicator for.
Don't make things too complicated or expensive for yourself.
Dave Morris
At 07:37 AM 2/28/2007, you wrote:
| Quote: | Eric,
I have a powerboard I'm using with a duel battery electrical
system (Z-X) with a Subaru in a Glasair II. As I'm not flying yet
I can't give a performance assessment. But it has made it very easy
to install the electrical system. I like the idea of the
"polyswitches". I have also developed a circuit that lights a green
LED above each switch when the switch is on and circuit closed. The
LED turns red if the circuit opens with the switch on so I know if
power is lost to a circuit.
Mark Banus
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ericparlow(at)hotmail.com
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| Posted: Wed Feb 28, 2007 11:36 am Post subject: BMA Power Board? |
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Mark,
I also have the BMA Power Board (and EFIS/One) which is installed in my "not
flying yet" RV-10.
And it has made the installation much simpler and easier.
My question was intended to get thoughts on the reliability/durability of
the Power Board.
It looks to have several single point failure modes.
What back-up system are you using for when the Power Board malfunctions?
I'd be very interested to see your wiring schematic as I'm working to finish
mine before any final wiring starts.
I plan to have all the essential components for safe IFR flight also powered
thru a second bus independent of the Power Board.
ERic--
RV-10 N104EP
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h&jeuropa
Joined: 07 Nov 2006
Posts: 645
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| Posted: Wed Feb 28, 2007 2:15 pm Post subject: Re: BMA Power Board? |
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I have the BMA power board in our Europa (flying). It was primarily installed because of the PTC protection. The big drawback, is that the entire board is protected by a single fuse, 35A. I attempted to use the cool MOSFET switching transistors and make everything go thru the board. However, with nav lights, landing lite and strobes on, hitting transmit on the com blew the fuse. I moved many items to conventional fuses at that time.
Now I am about to remove the BMA board. Using simple faston connectors I can make a board with all the PTC's I want and split them into the various busses too.
I used Tyco 164 switches like BMA uses. They are available with up to 3 sets of contacts, 5A each so you can control most things with them. Use a simple relay for others (pitot heat etc).
If you need the coolie hat stuff, I think that's available from Ray Allen - I'm not using that.
Jim Butcher
Europa N241BW
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