---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 12/16/03: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:24 AM - Re: GMA-340 installation manual (Jim Stone) 2. 10:02 AM - Re:USPAT/GarminAT Built-in Intercoms (buck) 3. 11:41 AM - wire specs (Henrique Castro) 4. 01:06 PM - Re: wire specs (Wayne Berg) 5. 03:09 PM - Re: wire specs (Robert L. Nuckolls, III) 6. 09:19 PM - Airspeed Indicator (Jim Sower) 7. 09:43 PM - No Electric Starter/System Ques (Don Boardman) 8. 10:12 PM - Re: KI-204 lighting? (James Redmon) 9. 11:04 PM - Re: Airspeed Indicator (Kingsley Hurst) 10. 11:13 PM - Re: Airspeed Indicator (Kingsley Hurst) ________________________________ Message 1 _____________________________________ Time: 07:24:59 AM PST US From: "Jim Stone" Subject: RE: AeroElectric-List: GMA-340 installation manual --> AeroElectric-List message posted by: "Jim Stone" Thanks James, Your question was identical to mine, perhaps they got confused. Thanks for taking the time to forward their response. Jim -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of James E. Clark Subject: RE: AeroElectric-List: GMA-340 installation manual --> AeroElectric-List message posted by: "James E. Clark" Hmmm. Maybe they missed it. What address did you use? I wouldn't write them off so soon. I sent them a series of questions and did in fact get answers ... quickly. My questions went out Sunday morning and by Monday afternoon I had answers. Not bad in my book. Also, the answers were basically consistent with what I thought they **should** and would do. My biggest problem is that I did not see the SL70(R) in the list of current products found on their website. Might have just been my (or even their) oversight. I have posted the reply to my original questions below. James p.s. I had asked about the CNX80/MX20/SL70(R)/SL30/SL15 combination. The three "systems" referenced in the reply, I believe are CNX80/MX20/SL30 ======================================================================== ==== ==================== James, I expect to see all three systems in question supported for the forseeable future. The CNX80 is currently the only WAAS GPS on the market that is approved under TSO-C146a. It also has a number of other unique features that will secure its place in the avionics marketplace. It has flight planning capabilities that allow you to insert a victor or jet airway into a flight plan with a single entry. It has an infrared dataport that will allow users to do IFR flight planning with greater ease than is now possible. Its display, although smaller than the 530, is equal in resolution. There are other features I could list as well. In the case of the 430 and 530, the success of those products speaks for itself, and they will only get better with time. The GX products will and have been discontinued along with the SL50 and SL60 but the rest of the Apollo products will continue to be produced and supported. The discontinued products will also be supported for years to come. I hope this answers some of your questions, thank you for your email. We value your business and your feedback. GARMIN AT, Inc. Aviation Account Representative Bill Lehmanowsky 800.525.6726 Toll Free 503.391.3396 direct 503.391.3947 fax e-mail: bill.lehmanowsky@garmin.com [SNIP] > > --> AeroElectric-List message posted by: "Jim Stone" > > > What is going on at Garmin? I sent them two emails over the last month > asking questions concerning the CNX-80 and what their intentions are for > supporting it and its buyers. Well if there lack of response is the > answer, I think I will be looking for an alternative for my COM, > Nav,CPS,and moving map. Perhaps they have gobbled up their only real > competitor (UPSAT)and feel they now have a monopoly on the multifunction > display avionics. I say we ignore them for a while, let them rethink > the importance of customer satisfaction. > Jim > > = == == == == ________________________________ Message 2 _____________________________________ Time: 10:02:31 AM PST US From: "buck" Subject: Re:AeroElectric-List: USPAT/GarminAT Built-in Intercoms --> AeroElectric-List message posted by: "buck" Fred, My SL-30 was wired with a switch to provide the ground for the intercom function. With the switch off, there is no intercom function but the radio works fine. Squelch is adjustable in flight for each of two headsets. Volume can either be set to automatic (the radio volume knob also adjusts the intercom volume) or it can be set as a percentage of the volume of the radio (presumably so radio traffic could "override" talking to your copilot). Volume is set in the maintenance mode, I believe. I've found that the squelch needs to be adjusted for each headset. Also, my SL-30 doesn't seem to like my buddy's Lightspeed ANR headseet very much. The result is far more annoying than with any other headset I've tried. Bottom line: it's an adequate intercom but if you've got the panel space and money I'd recommend you get a more traditional intercom. Greg Cozy N76PJ ---------------------------------------------- Original Message From: "Fred Stucklen" Subject: AeroElectric-List: USPAT/GarminAT Built-in Intercoms >--> AeroElectric-List message posted by: "Fred Stucklen" > > Has anybody tried to utilize the built-in intercom in one of the >USPAT/GarminAT radios (SL-40, SL-30, etc..) The installation manual >indicates that an input on one of the connectors has to be grounded "to >enable the intercom function". I'm interpreting this to be turning ON >the intercom for use, not opening up the audio through it. I'm assuming >that the internal VOX and Squelch settings will allow it to be used like >an ordinary intercom, once it is enabled... > If this is indeed the way it works, has anybody had problems setting >it up to work correctly (i.e., setting the squelch and audio levels) >What about resetting the settings while in flight???? > >Fred Stucklen >RV-6A N926RV >111.5 Hrs since Aug 03.... > > http://www.MyOwnEmail.com Looking for friendships,romance and more? http://www.MyOwnFriends.com ________________________________ Message 3 _____________________________________ Time: 11:41:53 AM PST US From: "Henrique Castro" Subject: AeroElectric-List: wire specs --> AeroElectric-List message posted by: "Henrique Castro" Hi all, I am building an RV9A and starting wiring the avionics. I know this is maybe a dummy question, but i would like to know what is the best wire diameter to use and also if its necessary to be shielded. If anyone help me asap, i would appreciate that Regards Henrique Castro Henriquerv9@hotmail.com ________________________________ Message 4 _____________________________________ Time: 01:06:14 PM PST US From: "Wayne Berg" Subject: Re: AeroElectric-List: wire specs --> AeroElectric-List message posted by: "Wayne Berg" 20 AWG Teflon coated stranded for the most part, some wires must be shielded (audio and wires going to headset jacks). Proper grounding is critical. ----- Original Message ----- From: Henrique Castro Subject: AeroElectric-List: wire specs --> AeroElectric-List message posted by: "Henrique Castro" Hi all, I am building an RV9A and starting wiring the avionics. I know this is maybe a dummy question, but i would like to know what is the best wire diameter to use and also if its necessary to be shielded. If anyone help me asap, i would appreciate that Regards Henrique Castro Henriquerv9@hotmail.com ________________________________ Message 5 _____________________________________ Time: 03:09:02 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: wire specs --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 05:41 PM 12/16/2003 -0200, you wrote: >--> AeroElectric-List message posted by: "Henrique Castro" > > >Hi all, > >I am building an RV9A and starting wiring the avionics. I know this is >maybe a dummy question, but i would like to know what is the best wire >diameter to use and also if its necessary to be shielded. > >If anyone help me asap, i would appreciate that > >Regards Tefzel (Mil-W-22759 or equal) is the insulation of choice these days . . . not only for avionics but ALL wires in the airplane. Aircraft Spruce at: http://www.aircraftspruce.com and B&C Specialty Products at: http://www.bandc.biz are two good sources. There are others. Check the installation manuals for your installed devices. Unless called out otherwise, 22AWG is fine. 95+ percent of avionics wiring can be 22AWG . . . it's the rare power supply wire that will be called out on an installation drawing as 20AWG or in very rare cases, 18AWG. Both suppliers cited have shielded wire. Again, FOLLOW INSTRUCTIONS for shielding with particular attention to how the shields are connected at each end of the wire. Bob . . . ________________________________ Message 6 _____________________________________ Time: 09:19:29 PM PST US From: Jim Sower Subject: AeroElectric-List: Airspeed Indicator --> AeroElectric-List message posted by: Jim Sower I'm looking for a throwaway airspeed indicator. I'm trying to get my cooling as optimized as I can, and need some "acceptably reliable" data on the pressure drop from the plenum below the engine to the exit above the engine. It doesn't have to be all that accurate, but since I'll hardly be using it after this problem is solved, it has to be VERY affordable. Anyone have an old beat up no account ASI? .... Jim S. -- Jim Sower Crossville, TN; Chapter 5 Long-EZ N83RT, Velocity N4095T ________________________________ Message 7 _____________________________________ Time: 09:43:06 PM PST US Subject: AeroElectric-List: No Electric Starter/System Ques From: Don Boardman --> AeroElectric-List message posted by: Don Boardman Hi Bob and All. I have been pushing these questions around in my head making myself crazy. I have read the Connection at least once (sections several times). I have been into the archives. Just for the record, there are 474 postings containing the words "Battery Bus". I still have questions. SO I guess it's time to get clarification. I will try and organize it so that answers can be inserted into the text. BACKGROUND Our Moose with the M-14 radial engine uses an air start system and therefore has no electric starter and no starter contactor. We are setting up the all electric airplane on a budget using Z-13 as our reference. Z-13 accounts for the use of a starter, part of my problem. We are using a Skytronics 50 amp main alternator with their new voltage regulator which incorporates a voltage protector. A SD-8 is our aux alternator. BATTERY We are trying to decide on amp hour rating. In the RG Odessey line we see 12 ah PC545 @ 12 Lbs. 16 ah PC625 @ 13 Lbs. and the 16 ah PC680 @ 15 Lbs. *Without the need for electric start and having two alternators are we foolish to go larger than 12 ah.? HEAVY WIRES The battery will be located under the co-pilots seat along with the battery contactor. I had anticipated using #4 wire to run my battery ground to the firewall and to run from the battery contactor to the main bus. The aircraft wire I purchased is pretty stiff (should have gotten welding cable) The 50 amp alternator feed on the Skytronics installation schematic shows #6 if bundled and #8 if in free air. I was planning on the purchase of #6 welding cable. (and using an anl-60 already purchased) ? Do I need #4 wire from the battery given no starting circuit ? Would the #6 FLEXIBLE welding cable do the job? #8 ? HEAVY WIRE FEEDS, BATTERY AND CONTACTOR #4 or as determined above. 1. The battery negative cable goes directly to the firewall G2. 2. The battery positive cable goes a short distance to the nearby contactor's bat terminal. 3. The output cable of the battery contactor goes to the Main Bus Fuse Block located up under the instrument panel. ? Is it correct that this cable is to be placed out of harms way and is not protected with i.e. large fuse or anl? ?Is there any problem with this cable running to the Main Bus past the back of the radio stack? MAIN ALTERNATOR OUTPUT 1. ? Without a starter contactor will the output of the main 50 amp alternator go to the 60-anl on the firewall and then to the post of the Main Bus Fuse Block? LOCATION OF THE BATTERY BUS After spending hours in the archives (slow learner) I understand that the Battery Bus belongs next to the Battery. At the moment I see only the clock, CD player keep alive, and possibly s small emergency light on the Bat Bus. We are talking mA's without the emergency light. The Battery Bus (BB) will feed the E-Bus which will be supported by the SD-8 alt. Supported by the SD-8, the E-Bus could have a continuous load of 7-10 amps and short loads to say 15 amps. This results in an fused extended feeder carrying more than the recommended 5-7 amps. I read that in these cases a relay, say a S704-1, can be used like a light contactor to supply the E-Buss from the BB, Links to a schematic were given. The link did not work for me. ? Does my description above work? Is there a link to a schematic of the relay installation in this situation that is current? ? In the above layout can the SD-8's output feed the system using #12 wire via the BB with, say, a 15 amp fuse instead of using a fuselink connected to the Bat side of the contactor? A MORTAL SIN BUT BARE WITH ME ? Let's say it is determined that the total BB and E-Bus continuous loads are in the order of 5-7 amps and the extended feeder to the remote mounted BB was protected at the battery with a 5-7 amp FUSE. Would such an installation be sinful? ? In the above scenario would the return feed from the BB to the battery with its 5-7 amp fuse preclude bringing the SD-8 output into the system via the remote BB? Thanks in advance for your time and patience, your help is invaluable. Regards, Don Boardman & Partner, Randy Bowers Murphy Moose #130 M-14PF 400HP, MT-prop/Beta, Aerocet 3500 amphibs, Rome, NY ________________________________ Message 8 _____________________________________ Time: 10:12:24 PM PST US From: "James Redmon" Subject: Re: AeroElectric-List: KI-204 lighting? --> AeroElectric-List message posted by: "James Redmon" OK, as an entry into the "for what it's worth" or "rest of the story" category: As I have found with all my used King stuff, the pinouts and/or an install manual are not all the data you need to make things work. In this case, indeed pin D is used for +14v lighting input. BUT...what they DON'T tell you is that pins B and E have to be jumpered....AND they have to be taken to a separate aircraft ground. Geez.... Now the freak'n thing works. ;-) -James > >Can anyone tell me what pins are used for the 14v internal lighting for a > >King KI-204 indicator? > > See: > http://www.aeroelectric.com/Installation_Data/KI203-204.pdf > > Bob . . . ________________________________ Message 9 _____________________________________ Time: 11:04:23 PM PST US From: "Kingsley Hurst" Subject: RE: AeroElectric-List: Airspeed Indicator --> AeroElectric-List message posted by: "Kingsley Hurst" Jim Sower wrote:- > I'm trying to get my cooling as optimized as > can, and need some "acceptably reliable" data on the pressure drop from the plenum below the engine to the exit above the engine. Jim, How would a simple manometer "U tube" made of plastic tubing be? Very cheap! I don't have it to hand at this moment, but a few months ago (could even be up to 12 mths) there was discussion on this list of how to calibrate same for the checking of ASI's. Just found the following reference on the web which may be of some assistance. http://www.efunda.com/formulae/fluids/manometer.cfm#calc Regards Kingsley Hurst Europa Mono Classic 281 in Oz About to install third and final window. ________________________________ Message 10 ____________________________________ Time: 11:13:36 PM PST US From: "Kingsley Hurst" Subject: RE: AeroElectric-List: Airspeed Indicator --> AeroElectric-List message posted by: "Kingsley Hurst" Jim Sower wrote:- > I'm trying to get my cooling as optimized as I can, and need some "acceptably reliable" data on the pressure drop from the plenum below the engine to the exit above the engine. Jim, My apologies. The reference I made to "this list" was incorrect. The manometer discussion was held on the Europa List. Regards Kingsley Hurst Europa Mono Classic 281 in Oz