---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 05/30/09: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:20 AM - Stereo to Mono () 2. 05:42 AM - Must-Have Tool Tip () 3. 08:08 AM - Re: Engine mount as starter ground path (johngoodman) 4. 08:27 AM - AECr12 goes to press . . . (Robert L. Nuckolls, III) 5. 08:28 AM - Re: Re: Engine mount as starter ground path (Robert L. Nuckolls, III) 6. 09:26 AM - Re: AECr12 goes to press . . . (Matt Prather) 7. 07:27 PM - Bonding for Fueling (Paul Millner [OAK]) 8. 08:49 PM - sky-tec starter wiring (thomas sargent) ________________________________ Message 1 _____________________________________ Time: 05:20:35 AM PST US From: Subject: AeroElectric-List: Stereo to Mono 5/30/2009 Hello Don, You wrote: "I want to install a plug in my panel to plug my stereo Walkman into but my intercom (PM1000 II) is mono." Here is one way to solve that problem -- http://www.radioshack.com/product/index.jsp?productId=2102669 This adapter will put the output of a mono jack on your panel into both sides of your stereo Walkman. Also take a look at some of the other adapters available. You may want to put a normal airplane earphone sized jack on your instrument panel so that either your Walkman (with an adapter) or an airplane earphone set (without adapter) may be plugged in. 'OC' Says: "The best investment we can make is the effort to gather and understand knowledge." ===================================================== Subject: AeroElectric-List: Stereo to Mono From: "Don McIntosh" I want to install a plug in my panel to plug my stereo Walkman into but my intercom (PM1000 II) is mono. Can I just splice the Right and Left leads together to go into the intercom? Also the intercom pins are labeled "HI" and "LOW". Is this just the pin identification numbers? -------- Don McIntosh Kitfox Series 7 under construction Jabiru 3300 ________________________________ Message 2 _____________________________________ Time: 05:42:58 AM PST US From: Subject: AeroElectric-List: Must-Have Tool Tip 5/30/2009 Hello Matt, Thanks for your tool tip. Here is another tip that you can distribute to the RV people if you will (I am not on their lists). Where ever possible abandon those abominable Phillips drive machine screws. Instead use Torx (six lobe) drive machine screws. Every builder who has done this has thanked me profusely for the suggestion. Torx drive inserts are readily available and with an electric cordless screw driver are very quick and effective -- vastly superior to Phillips drive. You can obtain Torx drive screws in a variety of sizes from Microfasteners. See here: http://www.microfasteners.com/catalog/products/SSCFCMXS.cfm (Note that these flat head screws have a true aviation use 100 degree countersink angle, not the common hardware store 82 degree countersink angle) and here: http://www.microfasteners.com/catalog/products/SSCSBXS.cfm 'OC' Says: "The best investment we can make is the effort to gather and understand knowledge." PS: Thanks again Matt for making the Matronics lists available to us -- they are of great value. ============================================= Time: 08:32:38 PM PST US From: Matt Dralle Subject: RV12-List: Must-Have Tool Tip... Dear Listers, I don't know, maybe everyone but me already knew about this little gem of a tool, but in case you missed it, I thought I share. If you don't have one of these, run - don't walk - down to your local Home Depot or Ace Hardware store and get one! All of those #8 screws in the RVs are a giant pain to work in and out and some are just impossible to get to. I've been using this little guy on the RV-8 project and can't image not having it now. The bendable shaft is really strong and you can bend the heck out of it without impacting the torque. Its about $13 at Home Depot which is a great deal considering how handy it is. Here's a link to it on the Ace Hardware web page. I also attached a picture of mine attached to my Dewalt electric screw driver. http://www.acehardware.com/sm-eazypower-flex-a-bit-plus-eazypower-flex-a-bit-plus--pi-2467822.html Best regards, Matt Dralle RV-8 #82880 N998RV ________________________________ Message 3 _____________________________________ Time: 08:08:30 AM PST US Subject: AeroElectric-List: Re: Engine mount as starter ground path From: "johngoodman" Maybe Bob can address this point: Bill might be able to use the 8awg wire separately. If the battery is grounded to the airframe right next to itself, and the starter is grounded to the firewall, then the starter is taken care of. The forest of tabs is most likely common to that firewall ground mentioned above. These would be used for grounding avionics, etc. The 8awg wire he has already pulled (a long and difficult task in an RV-10) could be used for an "always hot bus". Attach it to the battery in back, and put a fuse block at the panel end. One wire instead of a handful of small ones. He can then pull out the small wires to be used elsewhere. He probably already has the fuse block for the hot bus next to the battery - just move it. No waste of 8awg wire. Just a suggestion, but I like it so much, I might do it myself. John -------- #40572 QB Fuselage, wings finished. Finish Kit started. N711JG reserved Read this topic online here: http://forums.matronics.com/viewtopic.php?p=246031#246031 ________________________________ Message 4 _____________________________________ Time: 08:27:03 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: AECr12 goes to press . . . The long promised reprint of the AeroElectric Connection, revision 12 went to press yesterday. The long delay was unfortunate but economically worthwhile. I've located a print shop that not only offered an attractive price but is reasonable driving distance away so that I can pick the order up and avoid freight charges on about 3,000 pounds of paper! I'm supposed to have proofs early next week and assuming no big gottchas are identified, books to ship about 3 weeks after that. We're printing 2000 books . . . twice that of our usual print-run. R13 should be another milestone in 'Connection history. I've purchased a suite of desktop publishing software and will being molding 20 years and 4 different word processor outputs into a single, cohesive, print-ready file. I'm planning on several new chapters in addition to complete review of all existing work. This issue is 304 pages, the next will probably be 335 or so. My thanks to those who helped me comb the worst of the errors out of the latest changes. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 5 _____________________________________ Time: 08:28:50 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Engine mount as starter ground path At 10:06 AM 5/30/2009, you wrote: > > >Maybe Bob can address this point: > >Bill might be able to use the 8awg wire separately. If the battery >is grounded to the airframe right next to itself, and the starter is >grounded to the firewall, then the starter is taken care of. > >The forest of tabs is most likely common to that firewall ground >mentioned above. These would be used for grounding avionics, etc. > >The 8awg wire he has already pulled (a long and difficult task in an >RV-10) could be used for an "always hot bus". Attach it to the >battery in back, and put a fuse block at the panel end. Remotely mounting an always-hot bus is not recommended. Legacy crash safety conventions make this simply another remote bus that is worthy of a battery contactor . . . not ulike the robust e-bus feeder described in the Z-figures. > One wire instead of a handful of small ones. He can then pull out > the small wires to be used elsewhere. He probably already has the > fuse block for the hot bus next to the battery - just move it. No > waste of 8awg wire. Just a suggestion, but I like it so much, I > might do it myself. > >John I've been noodling through some recommendations for the rear-battery configuration of the RV10. I'm packed up to head out for M.L. right now so I don't have time to elaborate. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 6 _____________________________________ Time: 09:26:39 AM PST US Subject: Re: AeroElectric-List: AECr12 goes to press . . . From: "Matt Prather" Cool! It's not being printed in China! :) Matt- do not archive > > > The long promised reprint of the AeroElectric Connection, > revision 12 went to press yesterday. The long delay was > unfortunate but economically worthwhile. I've located > a print shop that not only offered an attractive price > but is reasonable driving distance away so that I can > pick the order up and avoid freight charges on about > 3,000 pounds of paper! > > I'm supposed to have proofs early next week and assuming > no big gottchas are identified, books to ship about 3 > weeks after that. We're printing 2000 books . . . twice > that of our usual print-run. > > R13 should be another milestone in 'Connection history. > I've purchased a suite of desktop publishing software > and will being molding 20 years and 4 different word > processor outputs into a single, cohesive, print-ready file. > I'm planning on several new chapters in addition to complete > review of all existing work. This issue is 304 pages, > the next will probably be 335 or so. > > My thanks to those who helped me comb the worst of > the errors out of the latest changes. > > > Bob . . . > > ----------------------------------------) > ( . . . a long habit of not thinking ) > ( a thing wrong, gives it a superficial ) > ( appearance of being right . . . ) > ( ) > ( -Thomas Paine 1776- ) > ---------------------------------------- > > ________________________________ Message 7 _____________________________________ Time: 07:27:32 PM PST US From: "Paul Millner [OAK]" Subject: AeroElectric-List: Bonding for Fueling >> how does one get lineboys trained that the engine exhaust pipe is a terrible place for ground wire Remember, it's not at all important to GROUND an aircraft for fueling. What *is* important is to BOND the aircraft to the fuel source, so that static charges created by the dielectric fluid called gasoline moving through the fueling equipment don't result in a spark at the nozzle. And... what Bob said about the size of the currents involved. Call it bonding, not grounding. Paul ________________________________ Message 8 _____________________________________ Time: 08:49:19 PM PST US From: thomas sargent Subject: AeroElectric-List: sky-tec starter wiring Sky-Tec advises against the use of a starter relay, while Bob K. advocates the use of one (for good reason, as I recall). I have a separate starter relay in my plane. A couple years ago the Sky-Tec website had an example schematic for hooking up one of their starters with a separate starter relay. I had a copy of that, but now I can't find it and they seem to have removed it from their website. I believe it showed a jumper between the large +12v terminal and the small terminal on the starter. Does any one have a copy of that schematic? Thanks, -- Tom Sargent, RV-6A, final assembly. ------------------------------------------------------------------------------------- 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.