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velletazjp
Joined: 08 Oct 2019
Posts: 8
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 Posted: Wed Oct 07, 2020 11:11 am Post subject: Peer review, Z16 Rotax engine, Ducati Regulator |
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Hi everybody
Many thanks for all the help I received when I designed the electric system for my Jodel's friend.
The plane is now airworthy and so far everything is working like a charm.
I now start helping an other fellow aviator who'w building an Aero101. He is a professional carpenter and the airplane is a true beauty but electicity is not he's strong skill.
I designed a very simple electric system, 90% inspired by bob's Z16.
Once again Bob [and all the other members of this forum], thanks for all the knowledge you're spreading...
My friend had 2 requirement that forced me to differ from Bob's design :
- he doesn't want to use a battery relay (I personally don't neither the load on the bus is less than 5Amp and a simple switch can handle that kind of current)
- he bought a rather expensive start key (see installation manual attached) that permits to turn ON the battery, select Ignition 1 and/or 2, and activate the stater. He don't want any other switches (unless safety mandates).
Initially, the supplier doesn't advised to install a OV disconnect relay, but I used Bob's design to adapt one on his airplane.
Please let me know if you see any flaws or improvement possible.
Many thanks
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loravia.com-régulateur-912-DUCATI.pdf |
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user9253
Joined: 28 Mar 2008
Posts: 1921
Location: Riley TWP Michigan
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| Posted: Wed Oct 07, 2020 5:53 pm Post subject: Re: Peer review, Z16 Rotax engine, Ducati Regulator |
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The crowbar module will short out the battery.
There is a long, always-hot wire connected between the battery and
terminal 1 of that expensive switch. In an accident, that wire could make
sparks and start a fire. A battery contactor can shut off power close to the battery.
| | - 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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Joe Gores |
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velletazjp
Joined: 08 Oct 2019
Posts: 8
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| Posted: Sat Oct 10, 2020 11:35 pm Post subject: Re: Peer review, Z16 Rotax engine, Ducati Regulator |
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Thanks for your and Bob's wisdom...
Guess we're always learning...
I've taken into account the suggestion of the battery relay, explained the argument once again, leveled pros & cons but it still a no in this situation.
Moved the crow bar.
Should at least work as it's intended...
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velletazjp
Joined: 08 Oct 2019
Posts: 8
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| Posted: Wed Feb 24, 2021 12:44 am Post subject: Re: Peer review, Z16 Rotax engine, Ducati Regulator |
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Hi guys
Project is moving forward except one step :
I can’t get my hand on a crowbar over voltage ( ref OVM-14 by BANDC ) unless I buy a complete kit ( which I don’t really need)
Does somebody knows where I could get one (AC spruce are out of stock) or does somebody have one in spare and would accept to send it to me ?
Thank you all
JP
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Ceengland
Joined: 11 Oct 2020
Posts: 391
Location: MS
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| Posted: Wed Feb 24, 2021 6:12 am Post subject: Peer review, Z16 Rotax engine, Ducati Regulator |
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On Wed, Feb 24, 2021 at 2:49 AM velletazjp <velletazjp(at)gmail.com (velletazjp(at)gmail.com)> wrote:
| Quote: | --> AeroElectric-List message posted by: "velletazjp" <velletazjp(at)gmail.com (velletazjp(at)gmail.com)>
Hi guys
Project is moving forward except one step :
I can’t get my hand on a crowbar over voltage ( ref OVM-14 by BANDC ) unless I buy a complete kit ( which I don’t really need)
Does somebody knows where I could get one (AC spruce are out of stock) or does somebody have one in spare and would accept to send it to me ?
Thank you all
JP
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If you're willing to build your own, there are instructions on the AEC website. Or I can send you a copy, if that's easier.
Charlie
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user9253
Joined: 28 Mar 2008
Posts: 1921
Location: Riley TWP Michigan
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| Posted: Wed Feb 24, 2021 4:01 pm Post subject: Re: Peer review, Z16 Rotax engine, Ducati Regulator |
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Crowbar Over Voltage Circuit
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Joe Gores |
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user9253
Joined: 28 Mar 2008
Posts: 1921
Location: Riley TWP Michigan
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velletazjp
Joined: 08 Oct 2019
Posts: 8
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| Posted: Mon Mar 08, 2021 1:00 pm Post subject: Re: Peer review, Z16 Rotax engine, Ducati Regulator |
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Thanks for the details.
Even tough learning new skills is always fun and educative, I would keep a DIY approach on last resort,
First, they seem to be readily available from B&C,
Second, it’s for a friend project, and I have no clue about elctronics etc, I’d rather spend some time on my on electric wiring,
Thank,
I’ll try b&c once again, and then task my father on the subject, he’s a retired electronic engineer, I’m sure he’ll understand all those little drawings 🤣
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