Today's Message Index:
----------------------
1. 06:19 AM - Re: Engine compartment fuse? (user9253)
2. 07:00 AM - ROTAX LANE LIGHTS PROBLEM SOLVED (user9253)
3. 09:33 AM - Re: ROTAX LANE LIGHTS PROBLEM SOLVED (C&K)
4. 10:02 AM - Re: Re: Engine compartment fuse? (C&K)
5. 10:27 AM - Re: Engine compartment fuse? (user9253)
6. 10:33 AM - Re: Z14 with SDS EM5 ENG BUS (Marvin McGraw)
7. 05:30 PM - Broken power terminal (Ron Burnett)
8. 05:57 PM - Re: Broken power terminal (Charlie England)
9. 08:30 PM - Dissimiliar metals (Bernie Willis)
10. 11:10 PM - gebruik je ongetwijfeld (Banning)
Message 1
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| Subject: | Re: Engine compartment fuse? |
Attached is a schematic using only two fuses.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=499261#499261
Attachments:
http://forums.matronics.com//files/rotax_x3_896.png
Message 2
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| Subject: | ROTAX LANE LIGHTS PROBLEM SOLVED |
The Rotax 912iS lane LED lights did not work in my friend's Kitfox.
There was a faint flicker when the lane switches were first turned on.
The lights worked fine when a 9 volt battery was connected to the pins in the HIC
connector for the lights.
So the problem must be in the Rotax harness or CPU or fuse box, right?
NO
After days of troubleshooting, we decided to remove the LED parallel resistor to
see if that made a difference.
Wow, that did it. The LED lane lights now worked.
It turns out that the Kitfox supplied resistors were 1R5 (1.5 ohms), not the recommended
1K5 (1500 ohms).
The purpose of those parallel resistors is to prevent the LEDs from glowing dimly
when the Rotax solid state switch is off.
A 9 volt battery has enough current capacity to power both a low value resistor
and a LED.
But the Rotax CPU must have internal resistance that limits the current.
Lesson learned: Check load resistance.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=499262#499262
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| Subject: | Re: ROTAX LANE LIGHTS PROBLEM SOLVED |
Another lane light gotcha is finding out that an unadvertised feature of
the indicator lamps purchased from Aircraft Spruce was that they were
internally grounded.
Ken
On 05/11/2020 9:54 AM, user9253 wrote:
>
> The Rotax 912iS lane LED lights did not work in my friend's Kitfox.
> There was a faint flicker when the lane switches were first turned on.
> The lights worked fine when a 9 volt battery was connected to the pins in the
HIC connector for the lights.
> So the problem must be in the Rotax harness or CPU or fuse box, right?
> NO
> After days of troubleshooting, we decided to remove the LED parallel resistor
to see if that made a difference.
> Wow, that did it. The LED lane lights now worked.
> It turns out that the Kitfox supplied resistors were 1R5 (1.5 ohms), not the
recommended 1K5 (1500 ohms).
> The purpose of those parallel resistors is to prevent the LEDs from glowing dimly
when the Rotax solid state switch is off.
> A 9 volt battery has enough current capacity to power both a low value resistor
and a LED.
> But the Rotax CPU must have internal resistance that limits the current.
> Lesson learned: Check load resistance.
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=499262#499262
>
>
Message 4
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| Subject: | Re: Engine compartment fuse? |
thanks Joe
It's tough for me but as a new rotax guy I'm trying to just assimilate
into the rotax culture and follow their advice rather than fight it and
do what seems logical since we don't really know what failures or
situations they are trying to cater to. One possible drawback for
eliminating one of those fuses is that if the start power fuse pops
after the engine has cranked just enough to keep going (rare but not
unknown) it would disable backup power for the flight so I thought I'd
keep all three 30 amp fuses.
I do plane to use a start power relay similar to the rotax blessed
rs-flight system which at least means the start power won't have to go
to a switch on the instrument panel.
I will add over voltage protection since despite verbal claims otherwise
the current install manual actually says "5. Attention: In failure
conditions the output voltage can exceed the specified limits"
thanks and keep the ideas coming
Ken
On 05/11/2020 9:14 AM, user9253 wrote:
>
> Attached is a schematic using only two fuses.
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=499261#499261
>
>
> Attachments:
>
> http://forums.matronics.com//files/rotax_x3_896.png
>
>
Message 5
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| Subject: | Re: Engine compartment fuse? |
Having a momentary start enable switch could be advantageous by making it
more difficult for unauthorized people (kids) to start the engine.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=499266#499266
Message 6
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| Subject: | Re: Z14 with SDS EM5 ENG BUS |
nuckolls.bob(at)aeroelect wrote:
> At 06:44 AM 2/9/2020, you wrote:
>
> > Here is my idea for Z-14 with ENG BUS. The AUX side is primarily for powering
the ENG BUS. The Main side is for all other consumers with an emergency aux
feed to the ENG BUS from the Main Batt.
>
> It doesn't really matter much since all busses
> are very robust. Put all engine loads on one
> bus . . . either main or aux . . . you'll be
> fine. No more busses needed
>
>
>
> Bob . . .
If I follow this advice, is there a way to turn off both battery contactors in
flight for a smoke in the cockpit scenario? It seems the engine would need additional
electical protection.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=499267#499267
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| Subject: | Broken power terminal |
I over torqued a #6 power terminal breaking most of it off on a dual unit fuel
pump. I did get the ring, lock washer and nut on anyway, but...
Are there any fixes?
Thanks,
Ron Burnett
May you have the Lord's blessings today!
Sent from my iPad
Message 8
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| Subject: | Re: Broken power terminal |
On 11/5/2020 7:23 PM, Ron Burnett wrote:
>
> I over torqued a #6 power terminal breaking most of it off on a dual unit fuel
pump. I did get the ring, lock washer and nut on anyway, but...
>
> Are there any fixes?
>
> Thanks,
> Ron Burnett
Bummer; I know that hurts.
A bit more detail, like brand/model & maybe a pic or two, might help us
help you.
Charlie
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Message 9
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| Subject: | Dissimiliar metals |
Garmin provides stainless hardware for grounding studs for some of its electronics.
Would stainless be a problem for attaching the grounding forest (brass/copper)
to an aluminum airframe?
Bernie Willis
Message 10
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| Subject: | gebruik je ongetwijfeld |
Tu e la tua futura moglie vi divertite a teatro? Vai spesso? Probabilmente non
funzionerebbe a Broadway, ma attirer applausi altrove.
Concorda con il regista del tuo teatro locale di proporre dopo il sipario. Le probabilit
sono eccellenti che lui o lei sar d'accordo poich questa una grande
pubblicit. Mentre gli attori fanno il loro ultimo inchino, unisciti a loro sul
palco e dai la tua migliore interpretazione durante la proposta. Falla salire
sul palco.
Punti bonus per convincere il cast a fare l'ultimo inchino nella tua direzione
invece che verso il pubblico.
Come il teatro, anche questa un'occasione da proporre in scena. Mentre puoi Festliche Kleider (https://www.dreamydress.ch/festliche-kleider.html) portarla in un bar karaoke e sorprenderla cantando una canzone d'amore, poi chiedendole di salire sul palco prima di proporre di fronte al pubblico, c' un modo pi subdolo per farlo.
Chiedi a una sua amica di portare la tua futura sposa fuori per una serata karaoke tra ragazze. Assicurati che ci si possa fidare dell'amico per non rivelare il tuo segreto. Mentre le donne (comprese le tue) si stanno godendo lo spettacolo, tu la sciocchi presentandoti sul palco con un'interpretazione di "Will You Marry Me". Falla salire Robes de Demoiselle D'honneur (https://www.dreamydress.fr/robes-de-demoiselle-d-honneur.html) sul palco e chiedile di sposarti. Dopo che ha accettato, cantale una serenata con "Quando ho sessantaquattro" dei Beatles.
Ora che hai proposto e la signora ha accettato, puoi rilassarti. Destra? In realt
no. Il divertimento solo all'inizio. Il prossimo passo decidere la sede e
trovare un catering adatto al tuo budget e ai tuoi gusti. Meglio iniziare a pianificare
ora o assumere un wedding planner per garantire che la tua donna speciale
abbia il matrimonio dei suoi sogni.
Le foto del tuo matrimonio dureranno una vita e oltre. Creeranno ricordi per te
e la tua famiglia, compresi i tuoi figli. A meno che tu non abbia un amico o
un familiare che sia un genio della fotografia, potresti non voler lesinare sul
tuo fotografo professionista. Tuttavia, puoi risparmiare denaro mettendo insieme
i tuoi album di matrimonio.
La musica grad dresses (https://www.dreamydress.co.uk/grad-dresses.html) del matrimonio sar una parte fondamentale del tuo ricevimento. Le persone vogliono essere intrattenute. Una band dal vivo costosa. Assumi invece un DJ per matrimoni. La musica non sar dal vivo, ma un DJ di talento pu mantenere la folla eccitata e ballare.
Non trascurare l'importanza del ruolo di un buon officiante di matrimoni. Lui o
lei dar il tono per l'intera cerimonia di matrimonio. Gli ufficiali possono essere
religiosi, secolari o aconfessionali. Assicurati che il tuo addetto al matrimonio
sia affidabile chiedendo referenze. Il fatto che chiunque pu diventare
un officiante di matrimoni autorizzato tramite Internet.
Alcuni officianti hanno pi esperienza con i voti nuziali standard che con le cerimonie fai-da-te. Se vuoi scrivere i tuoi voti, assicurati che il tuo officiante abbia l'esperienza per incorporare e Short Evening Dresses (https://www.queenabelle.co.uk/short-evening-dresses) personalizzare le tue parole in una bellissima cerimonia.
Rendi speciale il giorno del tuo matrimonio conoscendo le cose che puoi eliminare
e quali elementi sono necessari per creare il tuo matrimonio da sogno.
Durante questo periodo di coronavirus e anche in seguito, stai senza dubbio usando
pi spesso disinfettanti per le mani, possibilmente pi volte durante l'intera
giornata. Molte donne hanno disinfettanti vicino al lavandino e nella borsa
come protezione extra contro i germi. Mentre proteggi le tue mani, tuttavia,
potresti danneggiare la tua fede nuziale.
Un contatto troppo frequente con detergenti antibatterici e disinfettanti per le mani pu causare la perdita di lucentezza di metalli preziosi e pietre preziose. Anche se l'uso di disinfettanti per le mani sulle mani una saggia precauzione, meglio rimuovere i gioielli Quinceanera Dresses (https://www.dylanqueen.ca/quinceanera-dresses/) mentre si utilizzano tali prodotti e attendere che le mani si asciughino prima di rimettere l'anello. Questo evita di far cadere il disinfettante per le mani direttamente sull'anello.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=499272#499272
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