---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 02/13/13: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:07 AM - Re: IBBS backup battery vs backup alt? (user9253) 2. 07:07 AM - Re: IBBS backup battery vs backup alt? (Robert L. Nuckolls, III) 3. 07:42 AM - Re: Figure Z-13/20 all electric airplane with 20 amp E-bus (Robert L. Nuckolls, III) 4. 07:58 AM - Re: IBBS backup battery vs backup alt? (Andy) 5. 08:07 AM - Re: IBBS backup battery vs backup alt? (Andy) 6. 08:08 AM - Re: Figure Z-13/20 all electric airplane with 20 amp E-bus (Andy) 7. 09:16 AM - Re: IBBS backup battery vs backup alt? (Robert L. Nuckolls, III) 8. 09:17 AM - Re: Figure Z-13/20 all electric airplane with 20 amp E-bus (Robert L. Nuckolls, III) 9. 09:40 AM - Re: Figure Z-13/20 all electric airplane with 20 amp E-bus (Andy) ________________________________ Message 1 _____________________________________ Time: 07:07:52 AM PST US Subject: AeroElectric-List: Re: IBBS backup battery vs backup alt? From: "user9253" Many alternators will continue to operate after the battery has been disconnected. Testing on the ground will determine if your alternators behave this way. Chances are that the pilot will be unaware of a master contactor failure, because the alternator and electrical loads will continue to operate normally. The pilot might not realize the master contactor has failed until the next attempt to start the engine. Dual alternators are desirable for those who wish to continue flying for an extended time period after the main alternator fails. For many pilots, a second alternator is unnecessary weight, cost, and complexity. The aircraft battery will supply electrical power until landing. An avionics backup battery is not required because the aircraft battery provides backup power through the E-Bus circuit. In the event of a fire or an imminent crash, the pilot should have the ability to shut off all electrical power as close to the source as possible. A long wire from the battery to the aux alternator does not meet this requirement. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=394198#394198 ________________________________ Message 2 _____________________________________ Time: 07:07:52 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: IBBS backup battery vs backup alt? At 08:19 PM 2/12/2013, you wrote: > >Rv7 aircraft with a 2 screen G3X-single electronic ignition-Audio >panel-GTN650-transponder-TruTrak Gemini-G3X auto pilot. > >DiagramZ-12 if the master relay fails then the aux alt doesn't >charge the system? Correct. Z-12 was crafted for adding aux alternator to airplanes already configured with a legacy architecture. This is how the SD-20 has been ADDED to hundreds of type certificated aircraft. > Can the B lead from the aux alt connect at the + side of the > master relay to charge the system and supply aux alt power to batt > bus and e-bus? > >Diagram Z-11 with a IBBS battery backup for G3X versus Z-12? > >Price wise it's not much more for the single batt dual alt, how to >supply uninterrupted power to the G3X if a electrical system failure >occurs without IBBS backup battery? Have you already purchased an SD-20? This alternator is way too big as standby for 99% of OBAM aircaft. Figure Z-13/8 was crafted as a two-layer system that is lighter, less expensive and addresses your concerns. Bob . . . ________________________________ Message 3 _____________________________________ Time: 07:42:01 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Figure Z-13/20 all electric airplane with 20 amp E-bus At 09:19 PM 2/12/2013, you wrote: > >In order to keep uninterrupted power to the E-bus in figureZ-13/20, >you operate the system with the E-bus/alt master switch in the >middle (on) or top (on on)? Z-13/20 was withdrawn from the website after I became personally dissatisfied with the idea. Z-13/8 is my personal choice for an inexpensive, lightweight, robust and very reliable 2-alternator installation for light aircraft. If you already have an SD-20 and are inclined to incorporate Z-13/20 . . . it will probably perform as advertised. Bob . . . ________________________________ Message 4 _____________________________________ Time: 07:58:21 AM PST US Subject: Re: AeroElectric-List: IBBS backup battery vs backup alt? From: Andy Thanks for the replies! I haven't purchased either yet but am trying to decide between the Z diagram with the SD8 dynamo and using an avionics buss with a relay and a IBBS battery backup. Still trying to figure out how to wire the G3X system to the Zdiagram to allow uninterrupted power. Sent from my iPhone On Feb 13, 2013, at 9:07 AM, "Robert L. Nuckolls, III" wrote: > > At 08:19 PM 2/12/2013, you wrote: >> >> Rv7 aircraft with a 2 screen G3X-single electronic ignition-Audio panel-GTN650-transponder-TruTrak Gemini-G3X auto pilot. >> >> DiagramZ-12 if the master relay fails then the aux alt doesn't charge the system? > > Correct. Z-12 was crafted for adding aux alternator > to airplanes already configured with a legacy architecture. > This is how the SD-20 has been ADDED to hundreds of > type certificated aircraft. > >> Can the B lead from the aux alt connect at the + side of the master relay to charge the system and supply aux alt power to batt bus and e-bus? >> >> Diagram Z-11 with a IBBS battery backup for G3X versus Z-12? >> >> Price wise it's not much more for the single batt dual alt, how to supply uninterrupted power to the G3X if a electrical system failure occurs without IBBS backup battery? > > Have you already purchased an SD-20? This alternator > is way too big as standby for 99% of OBAM aircaft. > Figure Z-13/8 was crafted as a two-layer system > that is lighter, less expensive and addresses your > concerns. > > > Bob . . . > > > > ________________________________ Message 5 _____________________________________ Time: 08:07:02 AM PST US Subject: Re: AeroElectric-List: IBBS backup battery vs backup alt? From: Andy I think I need a new addition of the "connection," referencing Z13/8 can provide uninterrupted power to G3x by operating with the alt ebus feed on and G3x wired to ebus. Essentially he ebus would always run from the Batt side of the master relay through the alt ebus switch making it more of an always on ebus switch. I'm mostly thinking out loud to try and understand it better. Thoughts and advice appreciated! Thanks Andy Sent from my iPhone On Feb 13, 2013, at 9:07 AM, "Robert L. Nuckolls, III" wrote: > > At 08:19 PM 2/12/2013, you wrote: >> >> Rv7 aircraft with a 2 screen G3X-single electronic ignition-Audio panel-GTN650-transponder-TruTrak Gemini-G3X auto pilot. >> >> DiagramZ-12 if the master relay fails then the aux alt doesn't charge the system? > > Correct. Z-12 was crafted for adding aux alternator > to airplanes already configured with a legacy architecture. > This is how the SD-20 has been ADDED to hundreds of > type certificated aircraft. > >> Can the B lead from the aux alt connect at the + side of the master relay to charge the system and supply aux alt power to batt bus and e-bus? >> >> Diagram Z-11 with a IBBS battery backup for G3X versus Z-12? >> >> Price wise it's not much more for the single batt dual alt, how to supply uninterrupted power to the G3X if a electrical system failure occurs without IBBS backup battery? > > Have you already purchased an SD-20? This alternator > is way too big as standby for 99% of OBAM aircaft. > Figure Z-13/8 was crafted as a two-layer system > that is lighter, less expensive and addresses your > concerns. > > > Bob . . . > > > > ________________________________ Message 6 _____________________________________ Time: 08:08:49 AM PST US Subject: Re: AeroElectric-List: Figure Z-13/20 all electric airplane with 20 amp E-bus From: Andy I don't have the SD-20, and I think the SD-8 foots the bill much better. Sent from my iPhone On Feb 13, 2013, at 9:41 AM, "Robert L. Nuckolls, III" wrote: > > At 09:19 PM 2/12/2013, you wrote: >> >> In order to keep uninterrupted power to the E-bus in figureZ-13/20, you operate the system with the E-bus/alt master switch in the middle (on) or top (on on)? > > Z-13/20 was withdrawn from the website after > I became personally dissatisfied with the > idea. Z-13/8 is my personal choice for > an inexpensive, lightweight, robust and > very reliable 2-alternator installation > for light aircraft. > > If you already have an SD-20 and are inclined > to incorporate Z-13/20 . . . it will probably > perform as advertised. > > > > Bob . . . > > > > ________________________________ Message 7 _____________________________________ Time: 09:16:41 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: IBBS backup battery vs backup alt? At 10:06 AM 2/13/2013, you wrote: > >I think I need a new addition of the "connection," referencing Z13/8 >can provide uninterrupted power to G3x by operating with the alt >ebus feed on and G3x wired to ebus. Essentially he ebus would always >run from the Batt side of the master relay through the alt ebus >switch making it more of an always on ebus switch. I'm mostly >thinking out loud to try and understand it better. Thoughts and >advice appreciated! >Thanks >Andy All the latest updates are on the website at: http://tinyurl.com/5wxzn7 Bob . . . ________________________________ Message 8 _____________________________________ Time: 09:17:31 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Figure Z-13/20 all electric airplane with 20 amp E-bus At 10:08 AM 2/13/2013, you wrote: > >I don't have the SD-20, and I think the SD-8 foots the bill much better. If I were still in the TC aircraft business and charged with proposing the 'elegant solution' to a light aircraft system and legacy engine (with available drive pad) then Z-13/8 would be it. It's a two layer system with reliability numbers unequaled in most of the GA aviation fleet. Bob . . . ________________________________ Message 9 _____________________________________ Time: 09:40:18 AM PST US Subject: Re: AeroElectric-List: Figure Z-13/20 all electric airplane with 20 amp E-bus From: Andy Thank you for all of your time patience and energy! The electrical system architecture stuff is pretty cool! Sent from my iPhone On Feb 13, 2013, at 11:17 AM, "Robert L. Nuckolls, III" wrote: > > At 10:08 AM 2/13/2013, you wrote: >> >> I don't have the SD-20, and I think the SD-8 foots the bill much better. > > If I were still in the TC aircraft business > and charged with proposing the 'elegant solution' > to a light aircraft system and legacy engine (with > available drive pad) then Z-13/8 would be it. > > It's a two layer system with reliability numbers > unequaled in most of the GA aviation fleet. > > > > Bob . . . > > > > ------------------------------------------------------------------------------------- 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.