---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 04/05/20: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:51 AM - Re: Re: New role for the E-Bus? (Robert L. Nuckolls, III) 2. 08:57 AM - Re: Re: New role for the E-Bus? (Robert L. Nuckolls, III) 3. 10:17 AM - Re: Re: New role for the E-Bus? (Sebastien) 4. 10:46 AM - Re: Z11 "Generic Electrical system" with Dual Electron (bcone1381) ________________________________ Message 1 _____________________________________ Time: 08:51:51 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: New role for the E-Bus? At 07:30 AM 4/4/2020, you wrote: > > >nuckolls.bob(at)aeroelect wrote: > > > > > > If the List is willing, I'd like to continue > > to refine this configuration with an eye > > to retiring Z12 and probably Z14 as well. > > >I would rather you not "retire" Z14. I like it and am planning on >using it in my bird - wiring has commenced. My bird is single engine >with EFII, glass panel, IFR, night, whole continent capability. Two >batteries, two masters, cross-feed, and very low probability of >finding myself dark. I am rather attached to that scheme. Don't get wrapped around any axles-of- authority for what's published in the 'Connection. It's your airplane and if it's performing as-advertised combined with your complete understanding of it's operation, then there's no risk for Our mission here is a compilation of the best-we-know how to do. To refine design goals that minimize complexity, weight, cost of ownership while minimizing risk. I suggest that no airplane, motorcycle, 4-wheeler, bass boat or any other high energy endeavor can be made SAFE. We can reduce risk through though attention to history, reverence for good physics, pride of craftsmanship, a quest for understanding by all participants and responsible operation by the pilot. >Even if it progresses no more because you have a single battery >scheme that looks more reliable, >I would like to see it remain on-line, perhaps with the caution that >another scheme now scores better on FMEA. . . . not 'more' reliable from a performance perspective but from a cost of ownership and operations perspective. I don't think I've every heard of a systems guy getting hammered 'cause he took out things that reduced weight, cost of ownership and/or simplified system operation . . . you won't have a failure or maintenance burden from a part that isn't installed! Z-14 performs as advertised but in my never humble opinion, it is too complex. It served a purpose of limited utility that is quickly passing. Electrical power needs are changing while the reliability of all components is going up. If N811HB had been fitted with Z01PX . . . that fine machine might still be in service with nobody getting hurt. Revision 12 is in wide distribution both in print and digitally. Z14 isn't 'going away.' But if it can be replaced with greater elegance of design and purpose, then so be it. Bob . . . ________________________________ Message 2 _____________________________________ Time: 08:57:58 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: New role for the E-Bus? At 10:12 AM 4/4/2020, you wrote: > >Bob, >I've resumed my build after a 10-year layoff and had installed the >13/8 architecture. Turns our the engine I bought to hand on the >firewall already had a B&C 20 Amp alternator hanging on the >accessory case. So I've opted to leave it there but keep the 13/8 >architecture. I like the Z99 architecture because I can adopt it >with very little change to what I've already installed. > >Dan Watch this space. From my current digs which I refer to as '100 miles from everywhere', I have a lot of opportunity for what I call 'asphalt engineering'. Did about 6 hours of that exercise over the past week. Had a bit of an epiphany about the evolution of Z01 (the technical term is brain f@&t). I'm working on the next submission for everyone's input . . . I think you'll find it compatible with your desires cited above. Bob . . . ________________________________ Message 3 _____________________________________ Time: 10:17:36 AM PST US From: Sebastien Subject: Re: AeroElectric-List: Re: New role for the E-Bus? Bob from what I have seen Z01 would be exactly what I would be looking for on my next aircraft. 1. Z-14 is too complex for me from a cost, weight, and maintenance point of view. 2. I have no need for an e-bus since an alternator failure will be detected right away and after switching to the SD-8 there is plenty of time to shut down individual loads that aren't required at that time if the flight time remaining deems it necessary. 3. Since both Garmin and Dynon have excellent backup batteries that will power essential systems only for flight and navigation, I was never interested in a brownout bus. Last year I discovered that if you program your flight plan into the GPS navigator with the engine shut down it's usually fine but every once in a while the engine cranking takes a bit too long and the navigator resets, clearing out the flight plan. Preventing this would be useful so now I'm a fan of the brownout bus. Having the nav lights, one COM and the GPS navigator on that bus with a clearance delivery switch to power it by itself would be something I would use just about every flight. 4. I think electrically dependent engines are becoming the norm rather than the exception for new amateur built aircraft. Regards, Sebastien On Sun, Apr 5, 2020 at 9:02 AM Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > At 10:12 AM 4/4/2020, you wrote: > > > Bob, > I've resumed my build after a 10-year layoff and had installed the 13/8 > architecture. Turns our the engine I bought to hand on the firewall > already had a B&C 20 Amp alternator hanging on the accessory case. So I've > opted to leave it there but keep the 13/8 architecture. I like the Z99 > architecture because I can adopt it with very little change to what I've > already installed. > > Dan > > > Watch this space. From my current digs which > I refer to as '100 miles from everywhere', I > have a lot of opportunity for what I call > 'asphalt engineering'. Did about 6 hours > of that exercise over the past week. > > Had a bit of an epiphany about the evolution > of Z01 (the technical term is brain f@&t). > I'm working on the next submission for > everyone's input . . . I think you'll > find it compatible with your desires > cited above. > > > Bob . . . > ________________________________ Message 4 _____________________________________ Time: 10:46:04 AM PST US Subject: AeroElectric-List: Re: Z11 "Generic Electrical system" with Dual Electron From: "bcone1381" In Post #20, I ask myself about resolution to Smoke in Cockpit due to electrical, bus failure. I am offering a diagram with the solution that I think I like. Its a simplified Z13/8 architecture with one ignition powered from the battery terminal and the other powered from the Battery side of the Master Solenoid. Should the Circuit from the Battery to the E-Bus have a fuse-link? I ask because the Z-13/8 diagrams the Main bus and E-Bus circuit does not. -------- Brooks Cone Bearhawk Patrol Kit Build Read this topic online here: http://forums.matronics.com/viewtopic.php?p=495625#495625 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.