---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 10/12/18: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:26 AM - Re: Rear battery earthing structure (Kent Ogden) 2. 10:11 AM - Re: Rear battery earthing structure (Robert L. Nuckolls, III) 3. 10:23 AM - Re: Re: A brown-out alternative? (Robert L. Nuckolls, III) 4. 10:55 AM - Re: Rear battery earthing structure (Carlos Trigo) 5. 12:32 PM - Re: Rear battery earthing structure (John Tipton) 6. 12:43 PM - Menzimer Aircraft Components 6 A Servo Wiring Diagram Needed (George Nielsen) 7. 03:01 PM - Re: A brown-out alternative? (Eric Page) ________________________________ Message 1 _____________________________________ Time: 09:26:59 AM PST US From: "Kent Ogden" Subject: Re: AeroElectric-List: Rear battery earthing structure Bill, Can I ask where you got the battery busses from in this picture? http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg Thanks . . . Kent >>> Bill Watson 10/8/2018 4:18 PM >>> > On 10/7/2018 7:22 PM, Robert L. Nuckolls, III wrote: At 05:46 PM 10/7/2018, you wrote: ( mailto:nwparkinson@btopenworld.com) Hi Everybody. Im building an RV8 with a rear battery location. Can I please have some advice on the earthing structure . Can I just earth the battery to the structure in the rear , then take it the common earth at the panel ? Or is it worth running some asw2 cable to earth the panel , or the engine ?? Ground battery locally http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg ( http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg) http://aeroelectric.com/Pictures/Grounding/Local_Battery_Grounds_1.jpg ( http://aeroelectric.com/Pictures/Grounding/Local_Battery_Grounds_1.jpg) ( http://aeroelectric.com/Pictures/Grounding/Local_Battery_Grounds_1.jpg) Install ground bus on firewall. http://aeroelectric.com/Pictures/Grounding/Forest_of_Tabs_Ground_Kit.pdf ( http://aeroelectric.com/Pictures/Grounding/Forest_of_Tabs_Ground_Kit.pdf) ( http://aeroelectric.com/Pictures/Grounding/Forest_of_Tabs_Ground_Kit.pdf) http://aeroelectric.com/Pictures/Grounding/gnd_bus.jpg ( http://aeroelectric.com/Pictures/Grounding/gnd_bus.jpg) Run braided-flat-wire from crankcase to firewall ground stud. http://aeroelectric.com/Pictures/Grounding/Braided%20Copper%20Bond%20Straps.jpg ( http://aeroelectric.com/Pictures/Grounding/Braided%20Copper%20Bond%20Straps.jpg) I will have some rear avionics equipment , should I run the earth from the panel to these ? Or just tap of the structure locally ? What kind of avionics? Anything with audio or digital signal leads? Bob . . . To OP: I have an RV10 with a 2 rear batteries, a ground bus on firewall and a braided flat wire from crankcase to firewall ground stud. No problems (7 years flying) In addition I have a variety of boxes installed in rear including Navworx ADSB, strobe unit, Magnetometers (sic), and ELT. I followed the installation instructions as Bob suggested. No problems. ( https://www.avast.com/antivirus) This email has been checked for viruses by Avast antivirus software. www.avast.com ( https://www.avast.com/antivirus) ( #DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2) ________________________________ Message 2 _____________________________________ Time: 10:11:48 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Rear battery earthing structure At 10:04 AM 10/12/2018, you wrote: >Bill, > >Can I ask where you got the battery busses from in this picture? > >http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg > >Thanks . . . One source of many https://tinyurl.com/y9sbdo9t Bob . . . ________________________________ Message 3 _____________________________________ Time: 10:23:29 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: A brown-out alternative? At 12:40 AM 10/12/2018, you wrote: > > >Bob Nuckolls wrote: > > I wired it as shown so that in the milliseconds after start > switch closure until the contactor closes, the converter has time > to come up and shoulder the load. > > >That makes perfect sense. My suggestion would have caused the DC/DC >converter to start up as the bus voltage was sagging, losing the >time advantage inherent in your schematic. Good work. Now my concern is that when the starter button is released, does the boost disappear too soon? i.e. before the starter contactor releases and unloads the battery? If this is a demonstrated concern, power to the dc/dc converter might be simply conditioned with a relay thusly: Emacs! The S704 relay will have its own drop-out characteristic which can be crafted to be LONGER than the starter contactor. If the diode alone doesn't offer a suitable delay, replace it with a capacitor . . . no need to 'tailor' it to any close tolerance . . . 100mS of dropout delay would not be out of line. Bob . . . ________________________________ Message 4 _____________________________________ Time: 10:55:32 AM PST US From: Carlos Trigo Subject: Re: AeroElectric-List: Rear battery earthing structure Kent I=99m not Bill, but I know that SteinAir has these. Best Carlos Enviado do meu iPhone No dia 12/10/2018, =C3-s 16:04, Kent Ogden escreveu: > Bill, > > Can I ask where you got the battery busses from in this picture? > > http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg > > Thanks . . . > > Kent > >>> Bill Watson 10/8/2018 4:18 PM >>> > > >> On 10/7/2018 7:22 PM, Robert L. Nuckolls, III wrote: >> At 05:46 PM 10/7/2018, you wrote: >> penworld.com> >>> >>> Hi Everybody. >>> I=C3=A2=82=AC=84=A2m building an RV8 with a rear battery location. >>> Can I please have some advice on the earthing structure . Can I just ear th the battery to the structure in the rear , then take it the common earth a t the panel ? Or is it worth running some asw2 cable to earth the panel , or the engine ?? >> >> Ground battery locally >> http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg >> >> =C2=B6 >> http://aeroelectric.com/Pictures/Grounding/Local_Battery_Grounds_1.jpg >> >> Install ground bus on firewall. >> http://aeroelectric.com/Pictures/Grounding/Forest_of_Tabs_Ground_Kit.pdf >> >> http://aeroelectric.com/Pictures/Grounding/gnd_bus.jpg >> Run braided-flat-wire >> from crankcase to firewall ground stud. >> http://aeroelectric.com/Pictures/Grounding/Braided%20Copper%20Bond%20Stra ps.jpg >> >>> I will have some rear avionics equipment , should I run the earth from t he panel to these ? Or just tap of the structure locally ? >> >> What kind of avionics? Anything with audio or digital >> signal leads? >> Bob . . . > To OP: I have an RV10 with a 2 rear batteries, a ground bus on firewall an d a braided flat wire from crankcase to firewall ground stud. No problems (7 years flying) > In addition I have a variety of boxes installed in rear including Navworx A DSB, strobe unit, Magnetometers (sic), and ELT. I followed the installation i nstructions as Bob suggested. No problems. > > > > This email has been checked for viruses by Avast antivirus software. > www.avast.com > ________________________________ Message 5 _____________________________________ Time: 12:32:44 PM PST US From: John Tipton Subject: Re: AeroElectric-List: Rear battery earthing structure http://www.bandc.aero/fuseholder6-slot.aspx John Sent from my iPad ----x--O--x---- > On 12 Oct 2018, at 6:52 pm, Carlos Trigo wrote: > > Kent > > I=99m not Bill, but I know that SteinAir has these. > > Best > Carlos > > Enviado do meu iPhone > > No dia 12/10/2018, =C3-s 16:04, Kent Ogden escreveu : > >> Bill, >> >> Can I ask where you got the battery busses from in this picture? >> >> http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg >> >> Thanks . . . >> >> Kent >> >>> Bill Watson 10/8/2018 4:18 PM >>> >> > >>> On 10/7/2018 7:22 PM, Robert L. Nuckolls, III wrote: >>> At 05:46 PM 10/7/2018, you wrote: >>> openworld.com> >>>> >>>> Hi Everybody. >>>> I=C3=A2=82=AC=84=A2m building an RV8 with a rear battery location .. >>>> Can I please have some advice on the earthing structure . Can I just ea rth the battery to the structure in the rear , then take it the common earth at the panel ? Or is it worth running some asw2 cable to earth the panel , o r the engine ?? >>> >>> Ground battery locally >>> http://aeroelectric.com/Pictures/Batteries/Battery_Install_OBrien_3.jpg >>> >>> =C2=B6 >>> http://aeroelectric.com/Pictures/Grounding/Local_Battery_Grounds_1.jpg >>> >>> Install ground bus on firewall. >>> http://aeroelectric.com/Pictures/Grounding/Forest_of_Tabs_Ground_Kit.pdf >>> >>> http://aeroelectric.com/Pictures/Grounding/gnd_bus.jpg >>> Run braided-flat-wire >>> from crankcase to firewall ground stud. >>> http://aeroelectric.com/Pictures/Grounding/Braided%20Copper%20Bond%20Str aps.jpg >>> >>>> I will have some rear avionics equipment , should I run the earth from t he panel to these ? Or just tap of the structure locally ? >>> >>> What kind of avionics? Anything with audio or digital >>> signal leads? >>> Bob . . . >> To OP: I have an RV10 with a 2 rear batteries, a ground bus on firewall a nd a braided flat wire from crankcase to firewall ground stud. No problems ( 7 years flying) >> In addition I have a variety of boxes installed in rear including Navworx ADSB, strobe unit, Magnetometers (sic), and ELT. I followed the installatio n instructions as Bob suggested. No problems. >> >> >> >> This email has been checked for viruses by Avast antivirus software. >> www.avast.com >> ________________________________ Message 6 _____________________________________ Time: 12:43:05 PM PST US From: George Nielsen Subject: AeroElectric-List: Menzimer Aircraft Components 6 A Servo Wiring Diagram Needed If you know where I can obtain a wiring diagram for a 6 A servo by Menzimer Aircraft Components of Vista, California please let me know. Thank you. George Nielsen Avid Flyer I-6640 The Hague, the Netherlands ________________________________ Message 7 _____________________________________ Time: 03:01:53 PM PST US Subject: AeroElectric-List: Re: A brown-out alternative? From: "Eric Page" Bob Nuckolls wrote: > Now my concern is that when the starter button is released, does the boost disappear too soon? i.e. before the starter contactor releases and unloads the battery? The circuit does delay shut-off of the boost converter. Press start button: boost converter powers on immediately, then after ~100mS delay, engine starter spins. Release start button: engine starter stops immediately, then after ~100mS delay, boost converter shuts off. The starter-on and booster-off delays are easily customized by adjusting the values of R4 and R5, respectively. However, your last drawing is certainly a simpler, lower-parts-count solution! Ah well, I still enjoyed thinking it through... Eric Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483793#483793 ------------------------------------------------------------------------------------- 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.