---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 01/17/09: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:29 AM - ELT location (Carlos Trigo) 2. 06:50 AM - Re: ELT location (Robert L. Nuckolls, III) 3. 07:05 AM - Speaking of GPS . . . (Robert L. Nuckolls, III) 4. 07:16 AM - Re: ELT location (bcollinsmn) 5. 08:36 AM - Re: Speaking of GPS . . . (Robert Borger) 6. 11:12 AM - How to test new circuits using battery and protect circuit? (jhclarkfl) 7. 02:01 PM - D-sub connections (Kevin Boddicker) 8. 02:03 PM - Re: Speaking of GPS . . . (David M.) 9. 02:40 PM - ELT location (James H Nelson) 10. 03:22 PM - Re: Speaking of GPS . . . (BobsV35B@aol.com) 11. 11:15 PM - Re: ELT location (Ed Holyoke) ________________________________ Message 1 _____________________________________ Time: 04:29:46 AM PST US From: "Carlos Trigo" Subject: AeroElectric-List: ELT location Although this is not a direct Electrical related issue, the RV List is not so active and there are many RV builders and flyers around this one, so Bob will forgive me for posting it here. Van's sells a sub-kit intended for the installation of the AmeriKing ELT on 2-place side-by-side RV's (7 and 9), and its instructions place it in the tail, right behind the baggage compartment aft bulkhead. IMHO that is not the best place to install this ELT because its capability of voice transmission in case one survives a crash is somehow defeated. You would have to unscrew more than 20 screws to remove that bulkhead corrugated cover to reach the ELT. Where does the 7 and 9 gang have installed the ELT? Inside the baggage compartment, at an easy reach of the pilot? And how about the ELT's external antenna? Carlos ________________________________ Message 2 _____________________________________ Time: 06:50:43 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: ELT location At 06:27 AM 1/17/2009, you wrote: > > >Although this is not a direct Electrical related issue, the RV List is not >so active and there are many RV builders and flyers around this one, so Bob >will forgive me for posting it here. > >Van's sells a sub-kit intended for the installation of the AmeriKing ELT on >2-place side-by-side RV's (7 and 9), and its instructions place it in the >tail, right behind the baggage compartment aft bulkhead. > >IMHO that is not the best place to install this ELT because its capability >of voice transmission in case one survives a crash is somehow defeated. You >would have to unscrew more than 20 screws to remove that bulkhead corrugated >cover to reach the ELT. > >Where does the 7 and 9 gang have installed the ELT? >Inside the baggage compartment, at an easy reach of the pilot? >And how about the ELT's external antenna? It's an entirely appropriate question . . . to which I would offer the following . . . The optimized location for ELT installation was picked almost 50 years ago as the area of an airplane most likely to survive a crash. Rearward in the tailcone with the antenna just forward of structure in the vertical fin. Given that non-gps aided, beacon ELTs are of substantive value in only a small percentage of rescues, it seem that the "voice transmission" capability is of dubious value. If one assumes worst case conditions, what ever value the ELT has to offer will be protected if the legacy installation protocols are observed. After you've wadded your airplane up into a ball, the existence of a non-gps aided ELT seems to serve little purpose other than to comply with a rule. Anyone on board the aircraft is capable of exploiting the voice transmission feature would be better off using the stuff that should be in everybody's flight bag. This equipment is accessible to survivors without to disassembly of of the airplane. http://aeroelectric.com/Pictures/Misc/Vacination_for_Dark_Panel_Syndrom.pdf It's interesting to note that the AmeriKing folks earned themselves unfavorable noticed by the FCC when on several occasions were asked to stop clear field emissions to 406 Mhz rescue satellites. http://www.fcc.gov/eb/Orders/2008/DA-08-402A1.html We have no first hand knowledge of how this all came about. It's curious that anyone developing new hardware would not be 100.00% sure of operational compliance in the screen-room before venturing out to do COORDINATED, open air testing of any kind. Tweaking the whiskers of the sleeping tiger is a risky pastime. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 3 _____________________________________ Time: 07:05:42 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Speaking of GPS . . . I bought a TomTom One about a year ago and I've had occasion to test it in the aviation environment on several occasions. I've found that these inexpensive receivers will find satellites and acquire lock at high speeds and at locations many hundreds of miles from shutdown. Of course, their terrestrial based knowledge is of limited value . . . but perhaps not useless. If you've got one of these amazing navigators, try it in your airplane. Before launch, be sure to cancel any previously entered request to find an address. After you're airborne the software will be frantically searching for new recommended routes as you cross roadways at strange angles at high speeds. For the TomTom One, it's impossible to get its attention while in the dither mode. But if you're in the map mode, you can set up to show ground speed and current course over the ground. Further, even at speeds of 400 mph or more, you will see names of cities under you flash onto the screen as the little critter works to keep up with the transonic automobile and its driver. My experiments have shown that like the Magellan GPS2000 I wrote about in Sport Aviation 12 years ago, the $low$ GPS products are still showing some utility as multi-taskers in both terrestrial and aerial navigation. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 4 _____________________________________ Time: 07:16:21 AM PST US Subject: AeroElectric-List: Re: ELT location From: "bcollinsmn" We also kicked this around on the RV List in november. I don't have an exact link but I referenced the discussion here: http://rvbuildershotline.com/archives/2008/20081122.html The original question I had, however, wasn't so much about the unit, it was about the antenna. Many RVers tuck it around the rollbar, which seemed to preclude a decent ground plane to me (if I understand ground plane correctly). The general consensus seemed to be, don't worry about it, it's not going to work anyway, which seemed an odd position for people who are so meticulous about the possibility of corrosion rotting their metal airplanes in record time or any of the other million things with little chance of happening that we obsess over. [Laughing] Here's what I ended up doing, by the way. http://rvnewsletter.blogspot.com/2008/11/installing-heres-where-my-remains-are.html I had intended to run the antenna up a bulkhead support as indicated in that latter link and that have the antenna up top just afte of another bulkhead. Since then, i've bought a Dynon D100 and it recommends the remote compass in that same location. So now I'm wondering if the antenna will interfere with the th Dynon magnetometer? -------- Bob Collins St. Paul, Minn. RV-7A (#&^ fiberglass!) http://rvbuildershotline.com Day job: http://minnesota.publicradio.org/collections/special/columns/news_cut/ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=225286#225286 ________________________________ Message 5 _____________________________________ Time: 08:36:59 AM PST US From: Robert Borger Subject: Re: AeroElectric-List: Speaking of GPS . . . Bob, I purchased a Garmin Nuvi 755T last year in anticipation of some road trips to places previously unknown. It is a really nifty (unquantified, I know) little device. Has worked flawlessly to simply get me from point "A" to point "B" on many occasions. Also useful to locate a specific brand outlet, e.g. closest Ace Hardware, closest WAMU, etc. Its ability to do a rapid lock-on is amazing having worked with a number of aviation and other simple units. In playing with it, I find that it has a "cross-country" mode for use on foot or bicycle. This mode looks quite promising for supplemental use in an aircraft. Unfortunately, I have not had an opportunity to try it yet, but when I do I'll let folks know how it works. BTW, you can change the icon which represents you and your location. Can be something simple like a triangle or other shape. Can be a typical road vehicle: generic car, SUV, pickup. Garmin also has their "Garmin Garage" where you can go to download more personalized vehicles like tow truck, EMS vehicle, police car, bicycle, running shoes, etc. They also have AIRCRAFT. Mostly generic such as SE Low wing, SE high wing, twin, helicopter. For Christmas they had a family of seasonal icons: sled, colored light, ornament, tree and a neat, colorful little biplane. The last being my Advent Season choice. For my regular use I selected the lovely little Spitfire complete with D- Day stripes. Check six, Bob Borger Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S http://www.europaowners.org/N914XL (99.999% done) Essentially complete. Running Tests & Final Inspections. 3705 Lynchburg Dr. Corinth, TX 76208 Home: 940-497-2123 Cel: 817-992-1117 On Jan 17, 2009, at 9:03, Robert L. Nuckolls, III wrote: > > > > I bought a TomTom One about a year ago and I've > had occasion to test it in the aviation environment > on several occasions. I've found that these inexpensive > receivers will find satellites and acquire lock at high speeds > and at locations many hundreds of miles from shutdown. > > Of course, their terrestrial based knowledge is of > limited value . . . but perhaps not useless. If you've > got one of these amazing navigators, try it in your > airplane. Before launch, be sure to cancel any previously > entered request to find an address. After you're airborne > the software will be frantically searching for new recommended > routes as you cross roadways at strange angles at high > speeds. For the TomTom One, it's impossible to get its > attention while in the dither mode. > > But if you're in the map mode, you can set up to show > ground speed and current course over the ground. Further, > even at speeds of 400 mph or more, you will see names > of cities under you flash onto the screen as the > little critter works to keep up with the transonic > automobile and its driver. > > My experiments have shown that like the Magellan > GPS2000 I wrote about in Sport Aviation 12 years ago, > the $low$ GPS products are still showing some utility > as multi-taskers in both terrestrial and aerial > navigation. > > > Bob . . . > > ----------------------------------------) > ( . . . a long habit of not thinking ) > ( a thing wrong, gives it a superficial ) > ( appearance of being right . . . ) > ( ) > ( -Thomas Paine 1776- ) > ---------------------------------------- > > ________________________________ Message 6 _____________________________________ Time: 11:12:54 AM PST US Subject: AeroElectric-List: How to test new circuits using battery and protect circuit? From: "jhclarkfl" I have wired my wing lights and my heated pitot tube. I will soon be installing the wiring in the fuselage. My question is how do I power up and test circuits and/or systems from my battery and still have short protection? Is there a device or alternate power supply that I can use and be able to select some circuit breaker value to protect the wires? Thanks -------- Jack Clark RV-8A Fuselage http://www.mykitlog.com/jackclark/ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=225334#225334 ________________________________ Message 7 _____________________________________ Time: 02:01:41 PM PST US From: Kevin Boddicker Subject: AeroElectric-List: D-sub connections Bob, Is there a comic book that explains how to make a d-sub crimp. How to use the tool, etc. I have looked over your site, no joy. Thanks, Kevin Boddicker Tri Q 200 N7868B 115.3 hours Luana, IA. ________________________________ Message 8 _____________________________________ Time: 02:03:46 PM PST US From: "David M." Subject: Re: AeroElectric-List: Speaking of GPS . . . ________________________________ Message 9 _____________________________________ Time: 02:40:16 PM PST US Subject: AeroElectric-List: ELT location From: James H Nelson Carlos, I have a "9" with the slider canopy. I mounted my "required" ELT on the frame just behind the pass. seat. I use a Ameri king (the redish colored one) and using the fame as the main mount, I ran the antenna back through it and mounted it to the top of the cover that encloses the rudder cable in the baggage compartment. This lets me remove the whole unit easily if I need to in the future. Some day there will be a reasonable 406 mz unit and I will put it in the tail cone behind the baggage compartment. There are lots of problems with antenna placement. First, there is a very good chance I will flip over. This places the antenna under the airframe. The rudder will protect the antenna to a point. That may break it off. I placed the antenna inside as my pix shows. Not the best but it will work. The very low power of the transmitter leaves much to be desired but its there. I have a PLB that I carry in my survival vest. If I can get out or at least put the PLB out side of the airframe, it has a built in gps so they can find me fairly quickly. I hope that gives you some ideas. Jim Nelson N15JN RV9-A ____________________________________________________________ Free information - Learn about Wheel Chair options. Click now! http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw1lvVIEGFiAbDHEmzQDSCNQgCEqYbyo3hXmSwmEWNo3D5JLj/ ________________________________ Message 10 ____________________________________ Time: 03:22:06 PM PST US From: BobsV35B@aol.com Subject: Re: AeroElectric-List: Speaking of GPS . . . Good Evening ainut, The GPS question or comment to Aeroelectric-list came through as a blank. Since I consider myself somewhat expert on the GPS, could you try to send the message again? Do not archive, Happy Skies Old Bob AKA Bob Siegfried Ancient Aviator 628 West 86th Street Downers Grove, IL 60516 630 985-8502 Stearman N3977A Brookeridge Air Park LL22 In a message dated 1/17/2009 4:05:27 P.M. Central Standard Time, ainut@hiwaay.net writes: **************A Good Credit Score is 700 or Above. 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