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Ground jumping on Z-14

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CBarber

Joined: 10 Aug 2009
Posts: 8
Location: Houston

Posted: Tue Jul 10, 2012 11:43 am Post subject: Ground jumping on Z-14

Sorry if this is too basic but I am wondering about being able to jump start my Velocity.  I am looking at adding one of the sockets available with plug the standard cables hook to.  it is only two screws, but it is a pain to remove them to  gain access to my battery.  Now that I have flown (as of June 9, 2012) I have noted on one occasion that I left my EFIS on too long and drained the batteries....actually my secondary battery, and the system really did not like it.  The secondary  low voltage light screaming....uh, blinking at me was quite bothersome.  Once charged up again, it seemed happy. 

  

My question.  If I am wiring in one of these sockets do I wire to just one battery or to both to allow charging of both at the same time or would this not be the way it worked.  Or, wire it to one battery and turn on the crossover switch to allow charging  of both.  Currently I will hook my charger to one of the other battery and charge them individually should the need develop.  Other than me leaving the EFIS on this has not been an issue as of late since I got past some proof of  concept wire and engine experimentation.   

  

This all may be overkill now that it seems my stuff is working pretty well and the screws are not that big a deal, but I am curious. 

  

Thanks 

  

Chris Barber 

Houston 

Velocity N17010 

Rotary 13b turbo 

    [quote][b]

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_________________
Christopher Barber
Velocity SE/Rotary 13B
Houston

nuckolls.bob(at)aeroelect
Guest

Posted: Tue Jul 10, 2012 11:57 am Post subject: Ground jumping on Z-14

At 02:40 PM 7/10/2012, you wrote:



Sorry if this is too basic but I am wondering about being able to 

jump start my Velocity.  I am looking at adding one of the sockets 

available with plug the standard cables hook to.  it is only two 

screws, but it is a pain to remove them to gain access to my 

battery.  Now that I have flown (as of June 9, 2012) I have noted on 

one occasion that I left my EFIS on too long and drained the 

batteries....actually my secondary battery, and the system really did 

not like it.  The secondary low voltage light screaming....uh, 

blinking at me was quite bothersome.  Once charged up again, it seemed happy.



My question.  If I am wiring in one of these sockets do I wire to 

just one battery or to both to allow charging of both at the same 

time or would this not be the way it worked.  Or, wire it to one 

battery and turn on the crossover switch to allow charging of 

both.  Currently I will hook my charger to one of the other battery 

and charge them individually should the need develop.  Other than me 

leaving the EFIS on this has not been an issue as of late since I got 

past some proof of concept wire and engine experimentation.



    Chris,



    Is there AC mains power in your hangar? How about a 3 or

    4 pin plug that wires TWO maintainers to your ship's batteries

    when plugged in. These are low cost, accurate chargers that

    would be isolated from each other during charging/maintaining

    the batteries.



    I would be helpful to know what architecture you are using

    for a dual battery setup. What are your plan-b procedures

    for continued flight with a failed alternator?  You menion

    Z-14 . . . do you have dual alternators on the Rotary engine?

    How did you happen to run down both batteries having left

    one accessory turned on?  If the smaller alternator is having

    trouble charging the battery while running accessories on

    its bus, you can close the cross-feed contactor and use the

    main alternator to get both batteries topped off.

   Bob . . .

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nuckolls.bob(at)aeroelect
Guest

Posted: Tue Jul 10, 2012 1:04 pm Post subject: Ground jumping on Z-14

At 02:40 PM 7/10/2012, you wrote:



Sorry if this is too basic but I am wondering about being able to 

jump start my Velocity.



    I missed this . . . if you want to actually crank the

    engine using ground power, you'll need a robust connector

    capable of carrying the current. You only need to connect

    it to the main battery in Z-14 . . . the aux battery gets

    connected too by closing the battery master switches and

    cross-feed contactors.



   Bob . . .

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CBarber

Joined: 10 Aug 2009
Posts: 8
Location: Houston

Posted: Wed Jul 11, 2012 5:04 am Post subject: Ground jumping on Z-14

Thanks Bob,



That is basically what I wanted verified.



All the best,



Chris Barber

Houston

Velocity 17010

"Only 38.9 more hours in Phase One Testing" 



________________________________________

From: owner-aeroelectric-list-server(at)matronics.com [owner-aeroelectric-list-server(at)matronics.com] on behalf of Robert L. Nuckolls, III [nuckolls.bob(at)aeroelectric.com]

Sent: Tuesday, July 10, 2012 4:04 PM

To: aeroelectric-list(at)matronics.com

Subject: Re: Ground jumping on Z-14






At 02:40 PM 7/10/2012, you wrote:



Sorry if this is too basic but I am wondering about being able to

jump start my Velocity.



    I missed this . . . if you want to actually crank the

    engine using ground power, you'll need a robust connector

    capable of carrying the current. You only need to connect

    it to the main battery in Z-14 . . . the aux battery gets

    connected too by closing the battery master switches and

    cross-feed contactors.



   Bob . . .

- The Matronics AeroElectric-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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_________________
Christopher Barber
Velocity SE/Rotary 13B
Houston

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