----------------------------------------------------------
                           AeroElectric-List Digest Archive
                                      ---
                     Total Messages Posted Sun 03/26/17: 3
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Today's Message Index:
----------------------
 
     1. 08:34 AM - Re: Klixon Circuit Breaker  (Robert L. Nuckolls, III)
     2. 03:35 PM - Re: Lightweight rechargeable battery backup unit  (BobD)
     3. 06:04 PM - Re: Lightweight rechargeable battery backup unit  (user9253)
 
 
 
________________________________  Message 1  _____________________________________


Time: 08:34:13 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Klixon Circuit Breaker

At 07:31 PM 3/25/2017, you wrote:
>Hi all,=C2
>
>I have a slight spacial conflict problem with 
>the instrument panel design and I need a smaller circuit breaker.=C2
>
>I designed my instrument panel with a row of 
>circuit breakers and I have already had the 
>instrument panel holes drilled and the silk 
>screening done for the circuit breaker labels. 
>My landing gear hydraulic motor requires a 30 
>amp circuit breaker and I placed it's 30 amp 
>Potter and Brumfield W23-x1a1g-30 circuit 
>breaker on the end of the row however I 
>discovered that I have a slight space conflict 
>to the point where the Potter and Brumfield 
>circuit breaker will not fit in its hole.=C2

    I wouldn't bring this kind of
    high current feeder up to the panel.
    I'd use a current limiter at the battery
    contactor thus keeping all the fat-wires
    of the panel. If there's already a
    spot for a breaker marked 'landing gear',
    put a 5a breaker there to power the control
    system.


   Bob . . . 

________________________________  Message 2  _____________________________________


Time: 03:35:57 PM PST US
Subject: AeroElectric-List: Re: Lightweight rechargeable battery backup unit
From: "BobD" <rjd@bobdawson.plus.com>


Bob,

As far as I can see , the instrument itself has no facility for battery backup
input, just the normal power feed 
http://www.mglavionics.co.za/Infinitec/Manuals/ASX1.pdf

I therefore think the options are 

1) go with a commercial device that has been suggested on the Europa Forum
http://www.mini-box.com/picoUPS-120-12V-DC-micro-UPS-battery-backup
with a small backup battery such as this
http://www.zbattery.com/Batteries/List-of-All-12Vs
2) build my own unit, as suggested in the post by user9253 (Joe Gores) in the original
thread
3) Buy one of the more expensive units from either Funkework  or LX Navigation
with the battery backups built in
4) stick with the steam driven ASI and Altimeter.

I guess my priorities are accuracy, minimum weight, and cost in that order

I would value your opinion.

--------
Bob Dawson
XS TG || 912 ULS || G-NHRJ


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=467650#467650


________________________________  Message 3  _____________________________________


Time: 06:04:05 PM PST US
Subject: AeroElectric-List: Re: Lightweight rechargeable battery backup unit
From: "user9253" <fransew@gmail.com>


That PicoUPS looks like it requires a backup battery.  So I do not know what advantage
it has over using a diode along with a backup battery.

--------
Joe Gores


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=467655#467655


 

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