---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 09/14/05: 21 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:58 AM - Re: Ground power for your airplane (Jan de Jong) 2. 05:45 AM - Re: Ground power for your airplane (Robert L. Nuckolls, III) 3. 06:10 AM - Re: Alternator field breaker (Jim Stone) 4. 06:53 AM - Re: Alternator field breaker (Bernard Despins) 5. 09:02 AM - Tire valve extension (Wayne Berg) 6. 09:20 AM - Re: Tire valve extension (Gerry Holland) 7. 09:51 AM - Re: Tire valve extension (rv-9a-online) 8. 10:05 AM - Re: Tire valve extension (Dj Merrill) 9. 12:39 PM - Re: Tire valve extension (rd2@evenlink.com) 10. 01:07 PM - Flat wire? (Michael J. Dark) 11. 01:22 PM - Avionics Wiring Hub (Bill Denton) 12. 01:28 PM - Re: Tire valve extension (Dj Merrill) 13. 01:34 PM - Re: Tire valve extension (LarryRobertHelming) 14. 01:37 PM - Re: Tire valve extension (Mark R Steitle) 15. 01:44 PM - Re: Tire valve extension (sgettings@cfl.rr.com) 16. 02:11 PM - Re: Avionics Wiring Hub (Hinde, Frank George (Corvallis)) 17. 02:19 PM - Re: Tire valve extension (BPA) 18. 05:01 PM - My Z-13/Z-20 Changes (Opinions and a Question) (Sean Stephens) 19. 05:41 PM - Re: Alternator field breaker (Robert L. Nuckolls, III) 20. 06:42 PM - Re: My Z-13/Z-20 Changes (Opinions and a Question) (Sean Stephens) 21. 11:51 PM - Re: Tire valve extension (Bob McCallum) ________________________________ Message 1 _____________________________________ Time: 12:58:37 AM PST US From: Jan de Jong Subject: Re: AeroElectric-List: Ground power for your airplane --> AeroElectric-List message posted by: Jan de Jong Thank you Bob for this pointer to Samlex 13.8 volt, 23 amp. Small question if I may: to what extent can the output be floated? Jan de Jong ________________________________ Message 2 _____________________________________ Time: 05:45:30 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Ground power for your airplane --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 10:04 AM 9/14/2005 +0200, you wrote: >--> AeroElectric-List message posted by: Jan de Jong > >Thank you Bob for this pointer to Samlex 13.8 volt, 23 amp. >Small question if I may: to what extent can the output be floated? > >Jan de Jong If memory serves me correctly, the (+) and (-) outputs from this product are totally isolated from all three leads to ac mains. Bob . . . ________________________________ Message 3 _____________________________________ Time: 06:10:06 AM PST US From: "Jim Stone" Subject: Re: AeroElectric-List: Alternator field breaker --> AeroElectric-List message posted by: "Jim Stone" Yes, I have the LR3 so I understand the CB would be best. Thanks, Jim ----- Original Message ----- From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Alternator field breaker > --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" > > > At 08:24 PM 9/13/2005 -0400, you wrote: > >>--> AeroElectric-List message posted by: "Jim Stone" >> >> >>Can someone please tell me if an alternator field breaker is required >>prior to the switch that controls it >>Can I use a slot in my fuze panel instead? >>Others have used 5amps to protect the circuit, does this sound about >>right? >>Thanks, >>Jim >>HRII > > You can run a fuse if you don't use crowbar ov protection. > It's the design goal of crowbar ov protection to deliberately > open the upstream power protection . . . a CB has been > recommended for ease of dealing with any nuisance trips. > > If you don't have ov protection or use some form of series > switch ov protection, then supplying field current through > a fuse is fine. > > Bob . . . > > > ________________________________ Message 4 _____________________________________ Time: 06:53:39 AM PST US From: Bernard Despins Subject: Re: AeroElectric-List: Alternator field breaker --> AeroElectric-List message posted by: Bernard Despins So if using the ov protection built into the LR3C from B & C Specialty, you would suggest using a circuit breaker instead of a fuse? Bernard Despins Robert L. Nuckolls, III wrote: >>Can someone please tell me if an alternator field breaker is required >>prior to the switch that controls it >>Can I use a slot in my fuze panel instead? >> >> >> > > You can run a fuse if you don't use crowbar ov protection. > > > If you don't have ov protection or use some form of series > switch ov protection, then supplying field current through > a fuse is fine. > > Bob . . . > ________________________________ Message 5 _____________________________________ Time: 09:02:37 AM PST US From: "Wayne Berg" Subject: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: "Wayne Berg" Does anyone have a source for tire valve extentions that avoids having to remove wheel pants to inflate tires? I know I've seen the add before but have lost the flier. ________________________________ Message 6 _____________________________________ Time: 09:20:05 AM PST US Subject: Re: AeroElectric-List: Tire valve extension From: Gerry Holland --> AeroElectric-List message posted by: Gerry Holland > --> AeroElectric-List message posted by: "Wayne Berg" > > Does anyone have a source for tire valve extentions that avoids having to > remove wheel pants to inflate tires? I know I've seen the add before but have > lost the flier. Try: http://www.aircraftextras.com/Valve-ext.htm I have one here in UK from them. Works great! Gerry Holland gholland@gemini-resourcing.com +44 7808 402404 (Mobile) +44 1249 700633 (Direct) +44 01225 436104 (Office) +44 870 7059985 (Fax) Gemini Resourcing Limited Hartham Park, Corsham, Wilts. SN13 0RP - UK Main: +44 1249 700630 Fax: +44 8707 051315 Website - http://www.gemini-resourcing.com DISCLAIMER: This message may contain privileged and confidential information. If you think for any reason this message has been addressed in error you must not copy or disseminate it and we would ask you to notify us immediately by return e-mail to info@gemini-resourcing.com. Internet emails are not necessarily secure. Gemini Resourcing Limited is registered in England with its address at: Hartham Park, Corsham, Wilts. SN13 0RP, England. Regards Gerry ________________________________ Message 7 _____________________________________ Time: 09:51:19 AM PST US From: rv-9a-online Subject: Re: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: rv-9a-online http://www5.mailordercentral.com/clevtool/prodinfo.asp?number=VSE5 Vern Little RV-9A Do Not Archive Wayne Berg wrote: >--> AeroElectric-List message posted by: "Wayne Berg" > >Does anyone have a source for tire valve extentions that avoids having to remove wheel pants to inflate tires? I know I've seen the add before but have lost the flier. > > > > ________________________________ Message 8 _____________________________________ Time: 10:05:33 AM PST US From: Dj Merrill Subject: Re: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: Dj Merrill Wayne Berg wrote: > --> AeroElectric-List message posted by: "Wayne Berg" > > Does anyone have a source for tire valve extentions that avoids having to remove wheel pants to inflate tires? I know I've seen the add before but have lost the flier. > I picked some up at a local auto parts store (Autozone I think). You should be able to find them just about anywhere. -Dj -- Dj Merrill Sportsman 2+2 Builder #7118 "Many things that are unexplainable happen during the construction of an airplane." --Dave Prizio, 30 Aug 2005 "TSA: Totally Screwing Aviation" ________________________________ Message 9 _____________________________________ Time: 12:39:54 PM PST US From: rd2@evenlink.com Subject: Re: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: rd2@evenlink.com > Does anyone have a source for tire valve extentions that avoids having to remove wheel pants to inflate tires? I know I've seen the add before but have lost the flier. > Didn't know such thing existed - if the tire has an extensiion exceeding the pant, how does it turn ? :) I've got capped holes on the pants - remove the cap, inflate replace the cap. Valves are a bit far and awkward to reach, but doable (would like to extend them a bit if sshort extensions are available; the auto ones are too long). Rumen ________________________________ Message 10 ____________________________________ Time: 01:07:11 PM PST US From: "Michael J. Dark" Subject: AeroElectric-List: Flat wire? --> AeroElectric-List message posted by: "Michael J. Dark" Has anyone looked at this for any applications? I'm not sure how it would hold up corrosion and shielding-wise, but it seems interesting for threading cable runs in tight spots. http://www.decord.com/dewire.htm -- Michael J. Dark, D.V.M. darkmich@wsu.edu ________________________________ Message 11 ____________________________________ Time: 01:22:14 PM PST US From: "Bill Denton" Subject: AeroElectric-List: Avionics Wiring Hub --> AeroElectric-List message posted by: "Bill Denton" I'm sure most of you are familiar with the Fast Stack wiring hubs offered by Approach Systems. http://www.approach-systems.com/test.asp I'm curious as to the pro's and con's of constructing one myself for use in a homebuilt aircraft. Does anyone have any experience with such a project? Could it be constructed in something like an aluminum Radio Shack "project box" which would be riveted/bolted to the cockpit side of the firewall? Would it be okay to carry the power and ground leads through the box to a DB connector, that would be connected to the individual avionics fuses/circuit breakers and the avionics ground bus? Any other "gotchas" anybody can think of? Thanks! ________________________________ Message 12 ____________________________________ Time: 01:28:50 PM PST US From: Dj Merrill Subject: Re: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: Dj Merrill rd2@evenlink.com wrote: > Didn't know such thing existed - if the tire has an extensiion exceeding > the pant, how does it turn ? :) > > I've got capped holes on the pants - remove the cap, inflate replace the > cap. Valves are a bit far and awkward to reach, but doable (would like to > extend them a bit if sshort extensions are available; the auto ones are too > long). > > Rumen Hi Rumen, You temporarily put the extensions on to allow you to put air in easily, them remove them before moving the plane. Basically, remove the wheel pant cap, screw on the extension, check air, remove the extension, and put the cap back on your wheel pant. Hope this helps! :-) -Dj -- Dj Merrill Sportsman 2+2 Builder #7118 "Many things that are unexplainable happen during the construction of an airplane." --Dave Prizio, 30 Aug 2005 "TSA: Totally Screwing Aviation" ________________________________ Message 13 ____________________________________ Time: 01:34:04 PM PST US From: "LarryRobertHelming" Subject: Re: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: "LarryRobertHelming" This really isn't an electrical topic but it was on the aeroelectric list so I will respond. Do not archive The valve extension is like a long valve stem that is removable and not on the plane when it flies. To use it, you remove your normal valve stem cap by using some sort of gadget that you reach in through the little hole you have in your wheel pants. Of course you need to have your tire marked so you know when the valve stem is perfectly in line with the hole. After removing the cover/cap from the valve stem you insert your special valve stem extension thing and screw it on. I bought mine from Cleveland. About $10 but maybe more with shipping and all. Screw the extension on the stem solidly but not too much. Then your tire pump goes on the extension. When done, unscrew the extension and reattach your cap on the stem using your gadget. My gadget is a piece of fuel line epoxied onto a 1/4' wood dowel. Hope this helps understand how it works. Indiana Larry, RV7 Tip Up SunSeeker (wired per Bob Nuckolls manual) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ " Happiness: like a butterfly, when pursued, is always beyond our grasp, but which, if one sits quietly, may light upon you." Nathanial Hawthorn ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ----- Original Message ----- From: Subject: Re: AeroElectric-List: Tire valve extension > --> AeroElectric-List message posted by: rd2@evenlink.com > > >> > Does anyone have a source for tire valve extentions that avoids having to > remove wheel pants to inflate tires? I know I've seen the add before but > have lost the flier. >> > > Didn't know such thing existed - if the tire has an extensiion exceeding > the pant, how does it turn ? :) > > I've got capped holes on the pants - remove the cap, inflate replace the > cap. Valves are a bit far and awkward to reach, but doable (would like to > extend them a bit if sshort extensions are available; the auto ones are > too > long). > > Rumen > > > ________________________________ Message 14 ____________________________________ Time: 01:37:06 PM PST US Subject: RE: AeroElectric-List: Tire valve extension From: "Mark R Steitle" --> AeroElectric-List message posted by: "Mark R Steitle" This a bit far out there, but since this is the Aero-Electric list I will bring it up anyway. I'm wondering how some vehicles in the the auto/motorcycle world manage to monitor tire pressures, and could this be easily adapted to OBAM aircraft? Mark S. > Didn't know such thing existed - if the tire has an extensiion exceeding > the pant, how does it turn ? :) > > I've got capped holes on the pants - remove the cap, inflate replace the > cap. Valves are a bit far and awkward to reach, but doable (would like to > extend them a bit if sshort extensions are available; the auto ones are too > long). > > Rumen ________________________________ Message 15 ____________________________________ Time: 01:44:43 PM PST US From: sgettings@cfl.rr.com Subject: Re: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: sgettings@cfl.rr.com ----- Original Message ----- From: rd2@evenlink.com Subject: Re: AeroElectric-List: Tire valve extension > --> AeroElectric-List message posted by: rd2@evenlink.com > > > > > Does anyone have a source for tire valve extentions that avoids > having to > remove wheel pants to inflate tires? I know I've seen the add > before but > have lost the flier. > > > > Didn't know such thing existed - if the tire has an extensiion > exceedingthe pant, how does it turn ? :) > > I've got capped holes on the pants - remove the cap, inflate > replace the > cap. Valves are a bit far and awkward to reach, but doable (would > like to > extend them a bit if sshort extensions are available; the auto ones > are too > long). > > Rumen > Try MSC Industrial Direct, page 2406: http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=2406&PMT4NO=1377093&PMT4TP=*ITPD Scott Gettings ________________________________ Message 16 ____________________________________ Time: 02:11:31 PM PST US Subject: RE: AeroElectric-List: Avionics Wiring Hub From: "Hinde, Frank George (Corvallis)" --> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)" Having kinda "been there" before I can offer you this. For a simple VFR setup (radio,audio,Transponder and alitude encoder) it was about as much as I wanted to do in terms of complexity by buying the boxes and wiring from scratch. It was made somewhat confusing because different manufacturers call the same wiring terminal by different names. So trying to get the right output into the right input of the next box caused some head scratching. I guess I spent at least 10 hours of wiring all those pesky connectors, fourtunatly I did not make any mistakes. I'm now just about to wire and IFR airplane and there is no way I'm doing that myself from scratch. For me it was either the approach system or get a custom harness made. Quite honestly I found John Stark's pricing on a custom harness to be very reasonable, in fact his avionics pricing looked a little cheaper than most others making the custom harness pretty cheap considering the work it avoided. The Approach system looked very flexible but unless I was intending to do upgrades I had a hard time seeing the point. I think if you are considering building one you are opting for an awful lot of work...If you do this stuff evry day or you're an electronics hobbyist maybe but to me I got better things to do. Frank -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Bill Denton Subject: AeroElectric-List: Avionics Wiring Hub --> AeroElectric-List message posted by: "Bill Denton" --> I'm sure most of you are familiar with the Fast Stack wiring hubs offered by Approach Systems. http://www.approach-systems.com/test.asp I'm curious as to the pro's and con's of constructing one myself for use in a homebuilt aircraft. Does anyone have any experience with such a project? Could it be constructed in something like an aluminum Radio Shack "project box" which would be riveted/bolted to the cockpit side of the firewall? Would it be okay to carry the power and ground leads through the box to a DB connector, that would be connected to the individual avionics fuses/circuit breakers and the avionics ground bus? Any other "gotchas" anybody can think of? Thanks! ________________________________ Message 17 ____________________________________ Time: 02:19:33 PM PST US Subject: RE: AeroElectric-List: Tire valve extension From: "BPA" --> AeroElectric-List message posted by: "BPA" Look in Street Rod Magazine. If memory serves me, there was c company that made valve stems that were about 3/4 of an inch longer than regular valve stems. Don't know if they are still available or if the company is even in existence. Allen Barrett Barrett Precision Engines, Inc. -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Mark R Steitle Subject: RE: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: "Mark R Steitle" This a bit far out there, but since this is the Aero-Electric list I will bring it up anyway. I'm wondering how some vehicles in the the auto/motorcycle world manage to monitor tire pressures, and could this be easily adapted to OBAM aircraft? Mark S. > Didn't know such thing existed - if the tire has an extensiion exceeding > the pant, how does it turn ? :) > > I've got capped holes on the pants - remove the cap, inflate replace the > cap. Valves are a bit far and awkward to reach, but doable (would like to > extend them a bit if sshort extensions are available; the auto ones are too > long). > > Rumen ________________________________ Message 18 ____________________________________ Time: 05:01:36 PM PST US From: Sean Stephens Subject: AeroElectric-List: My Z-13/Z-20 Changes (Opinions and a Question) --> AeroElectric-List message posted by: Sean Stephens I've taken Z-13/Z-20 and modified it a bit for a RV-10 with the battery in the tail. Please have a look and let me know if somethings just plain wrong. ( be gentle, I'm new at this :) ) 1. Moved main power distribution bus feed from battery contactor to starter contactor. 2. Local airframe ground of the main battery in the tail. The question I have is the feed from the e-bus contactor (will be up front in the plane) and the fuselink on that feed to the battery bus in the tail. Suggestions for resizing these for an ~8 foot run up to the front? Any other precautions there? TIA... -Sean RV-10 #40303 ________________________________ Message 19 ____________________________________ Time: 05:41:56 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Alternator field breaker --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 07:51 AM 9/14/2005 -0600, you wrote: >--> AeroElectric-List message posted by: Bernard Despins > > >So if using the ov protection built into the LR3C from B & C Specialty, >you would suggest using a circuit breaker instead of a fuse? > >Bernard Despins Correct. This is shown on all drawings provided by B&C and by the 'Connection where the B&C products are illustrated. Bob . . . ________________________________ Message 20 ____________________________________ Time: 06:42:26 PM PST US From: Sean Stephens Subject: AeroElectric-List: Re: My Z-13/Z-20 Changes (Opinions and a Question) --> AeroElectric-List message posted by: Sean Stephens Sorry, meant to say "Z-13/20" do not archive Sean Stephens wrote: > I've taken Z-13/Z-20 and modified it a bit for a RV-10 with the > battery in the tail. > > Please have a look and let me know if somethings just plain wrong. ( > be gentle, I'm new at this :) ) > > > > 1. Moved main power distribution bus feed from battery contactor to > starter contactor. > 2. Local airframe ground of the main battery in the tail. > > The question I have is the feed from the e-bus contactor (will be up > front in the plane) and the fuselink on that feed to the battery bus > in the tail. Suggestions for resizing these for an ~8 foot run up to > the front? Any other precautions there? > > TIA... > > -Sean RV-10 #40303 > ________________________________ Message 21 ____________________________________ Time: 11:51:40 PM PST US From: "Bob McCallum" Subject: Re: AeroElectric-List: Tire valve extension --> AeroElectric-List message posted by: "Bob McCallum" Mark; Many of the automotive systems are radio transmitters which replace the valve caps and send a signal to a central monitoring panel. Some are capable of monitoring up to 34 tyres. Some give an actual pressure reading, others just notify you of a change in pressure greater than some preset value. There should be no reason why they wouldn't work in an aircraft. A google search for "tyre pressure monitors" or "tyre inflation monitors" will give hundreds of hits to check out the offerings. Bob McC do not archive ----- Original Message ----- From: "Mark R Steitle" > This a bit far out there, but since this is the Aero-Electric list I > will bring it up anyway. I'm wondering how some vehicles in the the > auto/motorcycle world manage to monitor tire pressures, and could this > be easily adapted to OBAM aircraft? > > Mark S. > >