Today's Message Index:
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1. 01:01 PM - Re: Peer review, Z16 Rotax engine, Ducati Regulator (velletazjp)
2. 03:17 PM - Re: Re: Peer review, Z16 Rotax engine, Ducati Regulator (GTH)
3. 05:16 PM - Rotax 912ULS External Alt Sense Wire (jnmeade)
4. 05:20 PM - Disable Rotax Internal Generator (jnmeade)
5. 07:56 PM - Re: Disable Rotax Internal Generator (user9253)
6. 08:10 PM - Re: Rotax 912ULS External Alt Sense Wire (user9253)
Message 1
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| Subject: | Re: Peer review, Z16 Rotax engine, Ducati Regulator |
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, its for a friend project, and I have no clue about elctronics etc, Id rather
spend some time on my on electric wiring,
Thank,
Ill try b&c once again, and then task my father on the subject, hes a retired electronic
engineer, Im sure hell understand all those little drawings
--------
2020 contribution paid
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| Subject: | Re: Peer review, Z16 Rotax engine, Ducati Regulator |
Le 08/03/2021 22:00, velletazjp a crit:
>
> 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, its for a friend project, and I have no clue about elctronics etc, Id
rather spend some time on my on electric wiring,
>
>
> Thank,
> Ill try b&c once again, and then task my father on the subject, hes a retired
electronic engineer, Im sure hell understand all those little drawings
>
Hi JP and all,
Why not ask B and C if they would accept to just sell the little module ?
BTW, do you happen to be related with Pierre-Andr ?
--
Best regards,
Gilles
http://contrails.free.fr
http://lapierre.skunkworks.free.fr
Message 3
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| Subject: | Rotax 912ULS External Alt Sense Wire |
I plan to run a sense wire from the IG terminal of the Denso 201080-0800 40A alternator
to the load side of the 25A CB that is used for a master switch on the
Flight Design CTSW. The sense wire will be about 5' long.
1. I'm thinking of using an 18AWG wire for the sense wire. I don't want any voltage
loss on this sense circuit.
2. Is there any particular need to insert a fuse? It would call for a 10A fuse.
If I need one, I'd probably use an inline automobile fuse but I haven't decided
to add a fuse or not. Your thought?
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| Subject: | Disable Rotax Internal Generator |
Since I am adding a 40A external alternator to my Flight Design CTSW, I want to
be able to disable the internal Rotax generator. My intention is to put a switch
in the line of at least one of the wires to the G terminal on the Silent
Hektik Voltage regulator.
1. Switch both wires or only one?
2. I'm not sure of the size of the existing yellow wire, but am thinking of using
a 16AWG wire. It will be about 5' long and go from the VR on the front of
the firewall to the instrument panel and back to the VR.
It is my plan to leave the CB engaged and normally leave the internal generator
off by opening the switch in the yellow wire. If the 40A alternator goes bad
I'd engage the internal generator.
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| Subject: | Re: Disable Rotax Internal Generator |
Why not just switch the small gauge wire that goes to regulator terminal "C".
It only carries signal
current (milliamps). Only one wire is required from terminal C to a switch to
a fuse to the main power bus.
--------
Joe Gores
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| Subject: | Re: Rotax 912ULS External Alt Sense Wire |
The only way to lose voltage is for current to flow. A sense wire that carries
very
little current will have very little voltage drop. A 25 amp circuit breaker is
too big
to protect a small gauge wire. So protect the sense wire with a fuse. Wires subject
to engine vibration are more likely to short out than in other places in an airplane.
--------
Joe Gores
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