---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 01/16/13: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:30 AM - Crimping Question (Kent Ogden) 2. 06:53 AM - Re: Crimping Question (Stein Bruch) 3. 07:04 AM - Re: Crimping Question (Bill Watson) 4. 07:31 AM - Re: Crimping Question (Tim Olson) 5. 04:36 PM - Re: Lithium batteries redux (Robert Borger) 6. 05:57 PM - Re: vhf transponder interference (jappie) ________________________________ Message 1 _____________________________________ Time: 06:30:59 AM PST US From: "Kent Ogden" Subject: AeroElectric-List: Crimping Question Hi All, I am building an RV-10 and getting to the point where I need to think about electrical components and systems. I have a question about crimped connections: Is it a good (or bad) idea to put some electrical grease on the wire and/or connector before making the crimp? I have found that this helps the trailer light connections in my vehicle to survive the road salt over the winter, but that is a completely different environment. Any thoughts/comments appreciated. More questions to follow as I move forward . . . Kent Ogden RV-10 #40710 ________________________________ Message 2 _____________________________________ Time: 06:53:35 AM PST US From: "Stein Bruch" Subject: RE: AeroElectric-List: Crimping Question Hi Kent, On airplanes there is no need to do that extra step (in fact it could create some un-wanted gremlins later on). Just do a good job crimping and you'll be fine. A solid crimp will be excellent and will be as good as any other type of connection. Just my 2 cents as usual! Cheers, Stein From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Kent Ogden Sent: Wednesday, January 16, 2013 8:29 AM Subject: AeroElectric-List: Crimping Question Hi All, I am building an RV-10 and getting to the point where I need to think about electrical components and systems. I have a question about crimped connections: Is it a good (or bad) idea to put some electrical grease on the wire and/or connector before making the crimp? I have found that this helps the trailer light connections in my vehicle to survive the road salt over the winter, but that is a completely different environment. Any thoughts/comments appreciated. More questions to follow as I move forward . . . Kent Ogden RV-10 #40710 ________________________________ Message 3 _____________________________________ Time: 07:04:49 AM PST US From: Bill Watson Subject: Re: AeroElectric-List: Crimping Question I'm not an authority here but I'd like to compare my answer to others so here goes; it's unnecessary and therefore may just complicate your work. The crimping specs and procedures don't require dielectric grease to perform as designed so don't bother. Doing the electrical and panel work on mine was probably the most satisfying part of my build. Partly because it required some design and integration work that wasn't "CNC'd and pre-drilled". Partly because it was fun to learn the right ways to do things like crimping and wire bundling after having hacked away at various trailer harnesses, auto wiring and even some certified glider wiring (whoops!). You have all the resources you need between Vans plans and these lists... Enjoy! Bill "missing the build but enjoying the '10" Watson On 1/16/2013 9:29 AM, Kent Ogden wrote: > > Hi All, > > I am building an RV-10 and getting to the point where I need to think > about electrical components and systems. I have a question about > crimped connections: Is it a good (or bad) idea to put some > electrical grease on the wire and/or connector before making the > crimp? I have found that this helps the trailer light connections in > my vehicle to survive the road salt over the winter, but that is a > completely different environment. Any thoughts/comments appreciated. > > More questions to follow as I move forward . . . > > Kent Ogden > > RV-10 #40710 > > * > * ________________________________ Message 4 _____________________________________ Time: 07:31:38 AM PST US Subject: Re: AeroElectric-List: Crimping Question From: Tim Olson One big difference between trailers and planes is the quality of the wire. I f you use airplane wiring on your trailer, you probably wouldn't have much p roblems with your trailer either. Not to mention the goldplated contacts on m any aircraft parts. Tim On Jan 16, 2013, at 9:04 AM, Bill Watson wrote: > I'm not an authority here but I'd like to compare my answer to others so h ere goes; it's unnecessary and therefore may just complicate your work. The crimping specs and procedures don't require dielectric grease to perform as designed so don't bother. > > Doing the electrical and panel work on mine was probably the most satisfyi ng part of my build. Partly because it required some design and integration work that wasn't "CNC'd and pre-drilled". Partly because it was fun to lea rn the right ways to do things like crimping and wire bundling after having h acked away at various trailer harnesses, auto wiring and even some certified glider wiring (whoops!). > > You have all the resources you need between Vans plans and these lists... E njoy! > > Bill "missing the build but enjoying the '10" Watson > > On 1/16/2013 9:29 AM, Kent Ogden wrote: >> Hi All, >> >> I am building an RV-10 and getting to the point where I need to think abo ut electrical components and systems. I have a question about crimped conne ctions: Is it a good (or bad) idea to put some electrical grease on the wir e and/or connector before making the crimp? I have found that this helps th e trailer light connections in my vehicle to survive the road salt over the w inter, but that is a completely different environment. Any thoughts/comment s appreciated. >> >> More questions to follow as I move forward . . . >> >> Kent Ogden >> >> RV-10 #40710 >> >> >> > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ________________________________ Message 5 _____________________________________ Time: 04:36:54 PM PST US Subject: Re: AeroElectric-List: Lithium batteries redux From: Robert Borger Gents, With the Boeing 787 Dreamliner being grounded till their Li batteries can be checked, I figure it's a good time to report on my new AeroVoltz LiFePo battery. I said that I'd report on any testing I did on the AeroVoltz battery. Today I turned on the master which powered up the, Turbo Control Unit (Rotax 914), the GRT EIS4000 Engine Information System and the Airmaster AC200 prop controller. I then turned on the MicroAir 760 Comm radio and MicroAir T2000 transponder. With the comm radio tuned between ASOS, Ground Control & Tower (I swapped between them) and the transponder set on ALT DISPLAY (so the encoder was fired up as well), the voltage started at 12.4 Volts. It took almost exactly 20 minutes for the voltage to sag down to 11 Volts. When the voltage went to 10.9 Volts, I terminated the test and put the battery on cell balance charge. So there you have it. 20 minutes on what I would consider the minimum load. If for any reason I needed to be in the air longer than that to make it to the closest airport and that airport had a tower, I would probably shut down the radio and, maybe, the transponder till they were needed. Maybe even pull the breaker on the prop controller till needed. That would leave the only load as the EIS and TCU which should extend the battery life further. Blue skies & tailwinds, Bob Borger Europa XS Tri, Rotax 914, Airmaster C/S Prop. Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP 3705 Lynchburg Dr. Corinth, TX 76208-5331 Cel: 817-992-1117 rlborger@mac.com On Jan 8, 2013, at 4:20 PM, Robert Borger wrote: Bob, You may very well be correct, but I've gone out on a limb that I trust will support me and the aircraft. I have purchased and installed an Aerovoltz 12 Cell EV02 LiFePo battery in my Europa. The LiFePo battery is not supposed to be the fire hazard that the LiFe battery is. It is amazingly small and light. About 12 lbs lighter than the Odyssey it replaces. I would not have done this had my Rotax 914 still been electric dependent with two electric fuel pumps. about 2 years ago I replaced one of the electric pumps with an engine driven, mechanical pump so the engine will continue to operate should the electrics go totally dead. So far, in 2 hours of testing on the ground and 1 hour in the air, all seems well. It spins the Rotax on startup just like the Odyessy. I purchased the special charger that will do fast, 5A, charge; slow. 2A, charge; maintenance, .1A, charge/float and cell balancing. I have not done any time/power testing. I need to see how long it will run the radio, transponder and GRT EIS 4000 and then test with only the radio and EIS. When this is done, I will report the results. The seller of the battery did warn not to discharge below 9v as that would probably permanently damage the battery. And if discharged to below 11 volts, it must be recharged in the cell balance mode. Isn't this one reason why we call it Experimental? ________________________________ Message 6 _____________________________________ Time: 05:57:40 PM PST US Subject: AeroElectric-List: Re: vhf transponder interference From: "jappie" hello Went to my hangar last week, started to remove radio equipment. Took the coax cable and brought it to work to show to the "experts", Electronic Dept. One BNC connector is a twist (screw-in) type, I find that cheap to use on aircraft (personal opinion). Anyway, we started un-twisting the connector and wow, no crimp with the middle pin, is that normal ? and shield was almost gone !! see picture. Coax is (was) RG58C/U and will be replaced by RG142. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=392472#392472 Attachments: http://forums.matronics.com//files/coax_455.jpg ------------------------------------------------------------------------------------- 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.