Matronics Email Lists :: View topic - [Spam] Re: GT50 Flight Data System in my Yak52

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

[Spam] Re: GT50 Flight Data System in my Yak52

Matronics Email Lists Forum Index -> Yak-List

View previous topic :: View next topic

Author Message

drc(at)wscare.com
Guest

Posted: Tue Jan 15, 2008 2:56 pm Post subject: [Spam] Re: GT50 Flight Data System in my Yak52

If you can identify a drain on the battery, i.e. not a bad battery or other problem, then there are several inexpensive trickle chargers that are meant for this very problem.  I have a couple of cars I put up for the winter in Green Bay.  One with all of its electronics will drain the battery in about 4 weeks of not running.  I do not like to disconnect the battery for the winter because I may drive it and the codes in the clocks, stereo, GPS and the electronic keys get messed up with no power.  I put one of these low amperage chargers that mounts to the posts and then has a short cord with a plug on the end that is mounted under the hood.  I pop the hood and plug in the charger - it works great.

Herb

On Jan 15, 2008, at 1:07 PM, b747crew2003(at)aol.com (b747crew2003(at)aol.com) wrote:

[quote]Dennis;    Thanks for the information. I'm just attempting to sort out the problem and think it through so that I understand whats happening. Th GT50 is a "Flight Data Systems". 

    When I left the aircraft before the battery went dead I was sure that I pulled all the appropriate C/B's and turned everytrhing off. ( None of the avionics is on a master sw and must be turned off individually ) Now when I got to the Aircraft the Battery was down to about 6 VDC. from a full charge. That said I reason the only things that could have drawn down the ships battery was either the GPS or the GT50 unless there is a direct short somewhere in the system somewhere. Now when I pulled the batteries out of the aircraft they appear to be origional to the ship and 2 terminals were corroded so that prompted me to buy 2 new batts which I havn't yet installed but will this next weekend. I'm thinking that the entire avionics package needs to be on an avionics bus with a seperate master sw.........  Your Thoughts?? By the way did you get my check?

 Kindest  Regards

 Jack

 

 

 --

- The Matronics Yak-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:

http://www.matronics.com/Navigator?Yak-List

mark.bitterlich(at)navy.m
Guest

Posted: Tue Jan 15, 2008 4:10 pm Post subject: [Spam] Re: GT50 Flight Data System in my Yak52

A battery that is old or marginal to begin with will go to hell in a

handbasket when the temperature drops.  That is just the nature of

batteries, especially old ones.  



However this is a very simple problem to take a look at, and the best

answer is NOT to theorize, but to actually MEASURE.  You simply need to

turn every darn thing you can OFF including the master and other things,

etc., etc., then go back to the battery and remove the negative lead off

the battery.  Connect an ammeter, between the negative lead you just

took off and the negative terminal of the battery itself.  Assuming the

meter is set properly, and you have the meter leads attached to the

meter properly (get someone who knows how to do this in advance) then

you will read the actual current draw on the battery with everything

turned off.  This number... This value... Is what needs to be KNOWN

before anyone can determine whether the battery should be able to supply

it for days or weeks on end, or... That it is excessive due to some

fault somewhere, that is not going to be fixed by new batteries.  



I agree with Herb, that trickle chargers and especially desulfactor

arrangements are smart purchases, but the actual current draw should be

done as an immediate first step and not after buying new batteries,

putting on a trickle charger etc.   



Have everything fully charged and ready to go, then measure the current

draw.  It's a 5 minute task. 



Mark Bitterlich

 



--

- The Matronics Yak-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:

http://www.matronics.com/Navigator?Yak-List

B747crew

Joined: 04 Nov 2007
Posts: 20

Posted: Tue Jan 15, 2008 4:19 pm Post subject: [Spam] Re: GT50 Flight Data System in my Yak52

Mark;   What good advice. I'll do exactly that.

  Jack

 

 

 --

- The Matronics Yak-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:

http://www.matronics.com/Navigator?Yak-List

_________________
Jack Snodgrass
4305 Claridge Ct.
Apex, NC 27539
919-745-7434

dsavarese(at)elmore.rr.co
Guest

Posted: Tue Jan 15, 2008 4:20 pm Post subject: [Spam] Re: GT50 Flight Data System in my Yak52

Thanks Mark.  You're right on the money....again.  The batteries in Jack's 

newly acquired 52W are most likely the originals.  Thus '99 or 2000 vintage. 

7 or 8 years on batteries is unheard of.  It is definitely time to replace 

them.

Dennis

---

- The Matronics Yak-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:

http://www.matronics.com/Navigator?Yak-List

mark.bitterlich(at)navy.m
Guest

Posted: Tue Jan 15, 2008 4:50 pm Post subject: [Spam] Re: GT50 Flight Data System in my Yak52

I am sure you are absolutely correct Dennis.  Same thing happened to Tom

Johnson's 50.  Batteries that old are just waiting to fail on you

completely when you least expect it... Like cold weather.  



By the way, I am not sure how to spell "Desulfator"... Anyway, the

device that puts out about a 3 Mhz pulse and blasts the plates clean on

batteries.  Darn things are amazing, and using them can actually extend

aircraft battery life to twice or even thrice normal age.  Considering

you can buy one in kit form for about $25, they are a steal.  I have 2

gel cells that were totally dead (off of an electric wheel chair... 12

volt 35 AH jobs), that I ran one of these devices for two weeks straight

on.  They now charge and work perfectly.  That is in the "WOW" category.

Mark

--

- The Matronics Yak-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:

http://www.matronics.com/Navigator?Yak-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Yak-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum