AeroElectric-List Digest Archive

Thu 07/02/09


Total Messages Posted: 27



Today's Message Index:
----------------------
 
     1. 05:41 AM - Re: self weighing our planes (glen matejcek)
     2. 05:57 AM - Forum Search Problem & RSS Feed Question (Noah)
     3. 06:11 AM - Re: Re: self weighing our planes (Harley)
     4. 06:39 AM - Living without an audio panel (CardinalNSB@aol.com)
     5. 07:22 AM - Re: Re: self weighing our planes (Robert L. Nuckolls, III)
     6. 07:22 AM - Re: Re: self weighing our planes (Kevin Horton)
     7. 07:22 AM - Re: Forum Search Problem & RSS Feed Question (Robert L. Nuckolls, III)
     8. 07:35 AM - Re: Forum Search Problem & RSS Feed Question (Kevin Horton)
     9. 07:36 AM - Re: Re: self weighing our planes (BobsV35B@aol.com)
    10. 07:38 AM - Re: Re: self weighing our planes (Robert L. Nuckolls, III)
    11. 07:41 AM - Re: Living without an audio panel ()
    12. 07:44 AM - Re: Forum Search Problem & RSS Feed Question (Harley)
    13. 07:46 AM - Re: Living without an audio panel (Robert L. Nuckolls, III)
    14. 08:15 AM - Re: Re: self weighing our planes (rv7a.builder)
    15. 08:20 AM - Re: Re: self weighing our planes (Robert L. Nuckolls, III)
    16. 08:31 AM - Re: Re: self weighing our planes (BobsV35B@aol.com)
    17. 10:35 AM - Re: Forum Search Problem & RSS Feed Question (Noah)
    18. 11:26 AM - Re: Forum Search Problem & RSS Feed Question (Robert L. Nuckolls, III)
    19. 12:12 PM - Re: self weighing our planes (Ernest Christley)
    20. 12:51 PM - AEC Products - Future Z Revisions? (Gordon Smith)
    21. 01:14 PM - Re: Forum Search Problem & RSS Feed Question (Noah)
    22. 01:58 PM - Re: Re: Forum Search Problem & RSS Feed Question (Matt Dralle)
    23. 03:01 PM - Re: AEC Products - Future Z Revisions? (Robert L. Nuckolls, III)
    24. 04:43 PM - Re: Re: Forum Search Problem & RSS Feed Question (Dale Rogers)
    25. 05:55 PM - Re: Race timing help ()
    26. 06:23 PM - Re: Re: Forum Search Problem & RSS Feed Question (Simon Wilson)
    27. 07:48 PM - Re: Mono Plug in Stereo Jack (John)
 
 
 


Message 1


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    Time: 05:41:52 AM PST US
    From: "glen matejcek" <aerobubba@earthlink.net>
    Subject: RE: self weighing our planes
    IIRC, the Airbus A-320 family of aircraft weigh themselves. Right after takeoff, and for the reasons cited previously...


    Message 2


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    Time: 05:57:01 AM PST US
    Subject: Forum Search Problem & RSS Feed Question
    From: "Noah" <sgninc@cox.net>
    Just finished reading AEC and new to forum, building RV-7. I have 2 questions related to forum administration: 1. Why is it that when I search the archives on a particular topic, and I view one of the threads that came up in the search, I cannot return to the "search results" page by pressing "back" in my browser? Instead I get a "web page expired" and have to repeat the search - every time! Truly a pain. I do not have this problem on other forums, just matronics. 2. Is there a way yo get an RSS feed from this forum to my home page? Thanks, -------- Highest Regards, Noah Forden RV-7A Rhode Island Read this topic online here: http://forums.matronics.com/viewtopic.php?p=251102#251102


    Message 3


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    Time: 06:11:33 AM PST US
    From: Harley <harley@AgelessWings.com>
    Subject: Re: RE: self weighing our planes
    OK, my turn...we used strain gauges in the processing tanks when I worked for a living (pharmaceutical company). It was my idea to incorporate them, and it became my responsibility to calibrate and see that they were properly maintained. For example, when the 5,000 gallon processors were full of product being manufactured, even a fork truck driving by in an aisle outside the room would change the readings...the act of mixing the product would change the readings...even trying to massage the information we were getting from the gauges through computers only worked when everything was still...running water or other liquids into the process could only be accurately measured after the fluids had stopped sloshing around. So, how can strain gauges ever work in a plane while it is moving (as someone earlier wished for...to determine LANDING WEIGHT for example!) Once the plane is in the air, the load is off the legs...the strain is gone...at least the strain from the craft's weight. And while flying, even if there was a method to transfer the measured load from the legs to the wings, that would change constantly with attitude and g forces. The only way I can see the airbus weighing themselves right after take off is a differential between the reading on the ground motionless, and when flying level...after that, I would think that any "weight" reading would be interpolated from fuel burn rate and not an actual weight. Harley ------------------------------------------------------------------------ glen matejcek wrote: > > IIRC, the Airbus A-320 family of aircraft weigh themselves. Right after > takeoff, and for the reasons cited previously... > > >


    Message 4


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    Time: 06:39:37 AM PST US
    From: CardinalNSB@aol.com
    Subject: Living without an audio panel
    I know this has been discussed before, please excuse, I am still confused . My intercom will accept one monaural input. I want to simply "twist" all the low level audio outputs together from the various boxes to the intercom (then solder or crimp). This will make the volume control on the box and its on-off switch the control for that unit. What do I put in line between the intercom input and each box? resistor, diode, snapjack, or do I need a small isolation amplifier? On switching the comm, I assume I need a 4pdt (on-on) to switch=== ==-mic, ptt, indicator light, and audio low so I don't get confused which comm I am listening to while transmitting? Or is there a simple way to maybe add a resistor to the switch so that the non-transmitting comm is still on but with a reduced output? Thank you, Skip Simpson **************Dell Summer Savings: Cool Deals on Popular Laptops =93 Shop Now! =http:%2F%2Faltfarm.mediaplex.com%2Fad%2Fck%2F12309%2D81939%2D1629%2D1)


    Message 5


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    Time: 07:22:27 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: RE: self weighing our planes
    At 07:29 AM 7/2/2009, you wrote: ><aerobubba@earthlink.net> > >IIRC, the Airbus A-320 family of aircraft weigh themselves. Right after >takeoff, and for the reasons cited previously... Hmmmm . . . that perhaps answers some questions about maintain strain gage calibration that accounts for creep in offsets. Waiting until after t.o to display weight gets them a "zero weight" value off the gear stress sensors that becomes a new baseline for the next weighing action. But that does beg the question as to what's the value of knowing that you're over-gross/out-of-CG AFTER takeoff? Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 6


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    Time: 07:22:27 AM PST US
    From: Kevin Horton <khorton01@rogers.com>
    Subject: Re: RE: self weighing our planes
    On 2 Jul 2009, at 08:29, glen matejcek wrote: > > > > IIRC, the Airbus A-320 family of aircraft weigh themselves. Right > after > takeoff, and for the reasons cited previously... I've done flight testing on most of the Airbus family, and this is the first I've ever heard of this. The fly-by-wire Airbus aircraft do have a backup CG calculation that uses airspeed, weight and stabilizer angle. This serves to crosscheck the CG that is calculated from the crew entered values of zero fuel weight and CG. Maybe this is what you were thinking of. -- Kevin Horton (Grounded) RV-8 (Flight Test Phase) Ottawa, Canada http://www.kilohotel.com/rv8


    Message 7


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    Time: 07:22:27 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Forum Search Problem & RSS Feed Question
    At 07:54 AM 7/2/2009, you wrote: > >Just finished reading AEC and new to forum, building RV-7. I have 2 >questions related to forum administration: > >1. Why is it that when I search the archives on a particular topic, >and I view one of the threads that came up in the search, I cannot >return to the "search results" page by pressing "back" in my >browser? Instead I get a "web page expired" and have to repeat the >search - every time! Truly a pain. I do not have this problem on >other forums, just matronics. Hmmm . . . could be a browser thing. I'm using Firefox and when I select an item from the search results page, it opens that selection in a new tab. I can go back to the previous tab at any time and make further selections. Tried it with IE8 and got a good search results page but when I selected an item for viewing, it opened a new window and went into interminable "waiting for matronics.com" annunciation . Gave up after a couple of minutes. >2. Is there a way yo get an RSS feed from this forum to my home page? Don't think Matt has offered this feature. You'll need to rattle his cage on that one. Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 8


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    Time: 07:35:30 AM PST US
    From: Kevin Horton <khorton01@rogers.com>
    Subject: Re: Forum Search Problem & RSS Feed Question
    On 2 Jul 2009, at 08:54, Noah wrote: > > Just finished reading AEC and new to forum, building RV-7. I have 2 > questions related to forum administration: > > 1. Why is it that when I search the archives on a particular topic, > and I view one of the threads that came up in the search, I cannot > return to the "search results" page by pressing "back" in my > browser? Instead I get a "web page expired" and have to repeat the > search - every time! Truly a pain. I do not have this problem on > other forums, just matronics. Most web browsers allow you to open a link in a new window or tab, keeping the original window available. Then when you close the window for the new link, the old window with the search results is still there. The exact way to do this varies from browser to browser, and operating system to operating system. For many browsers in many operating systems you would press and hold the Ctrl key, then click the link. -- Kevin Horton (Grounded) RV-8 (Flight Test Phase) Ottawa, Canada http://www.kilohotel.com/rv8


    Message 9


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    Time: 07:36:37 AM PST US
    From: BobsV35B@aol.com
    Subject: Re: RE: self weighing our planes
    Good Morning aerobubba, Any of us can do the same if we wish to go to the trouble of getting highl y accurate calibration of all factors involved. For any specific weight and any specific angle of attack there will be just one speed at which the aircraft will leave the ground. If we note that speed and adjust for all the other pertinent factors we will have the weight. I have used that technique to some degree when flying the DC-8 in a charte r operation. I found that if my weight really was what the paperwork said it was and I initiated rotation when the book said I should, the DC-8 would leave the surface at a nine degree nose up attitude. When I started to fi nd airplanes in the charter operation that didn't do what I expected, I bega n to evaluate each takeoff very carefully. If I rotated to nine degrees and it did not fly, I held the nine degrees until it did lift off. I would then add two thousand pounds to whatever my weight manifest said for each knot above the normal lift off speed that I attained by holding the nine degrees. If I then added that extra weight to my performance calculations, all became normal. As an example, if the lift off speed was ten knots higher than had been calculated I would be twenty thousand pounds heavier than the paperwork showed. By using that new weight to establish climb and cruise numbers, the airplane would deliver the performance required. Hopefully, modern techni ques for gathering the data for weight manifests have improved drastically in the thirty-five plus years since I flew those charters, but it worked well for me! Happy Skies, Old Bob Downers Grove, IL LL22 Stearman N3977A In a message dated 7/2/2009 7:44:03 A.M. Central Daylight Time, aerobubba@earthlink.net writes: --> AeroElectric-List message posted by: "glen matejcek" <aerobubba@earthlink.net> IIRC, the Airbus A-320 family of aircraft weigh themselves. Right after takeoff, and for the reasons cited previously... ======================== =========== ======================== =========== ======================== =========== ======================== =========== **************Dell Summer Savings: Cool Deals on Popular Laptops =93 Shop Now! =http:%2F%2Faltfarm.mediaplex.com%2Fad%2Fck%2F12309%2D81939%2D1629%2D1)


    Message 10


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    Time: 07:38:11 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: RE: self weighing our planes
    >For example, when the 5,000 gallon processors were full of product >being manufactured, even a fork truck driving by in an aisle outside >the room would change the readings...the act of mixing the product >would change the readings...even trying to massage the information >we were getting from the gauges through computers only worked when >everything was still...running water or other liquids into the >process could only be accurately measured after the fluids had >stopped sloshing around. Yeah. I recall an associate once describing strain gage technology akin to working with tweezers under a microscope during an earthquake. It's truly an exercise in sifting grains of sugar from the rock salt. The artful application of strain gages has been enhanced by advances in software analysis of noise-laden micro-signals. Computers made a huge improvement in accuracy and resolution of slow moving data but if you're wanting to measure vibration or other rapidly changing data over long periods of time, it's a whole new ball game. Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 11


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    Time: 07:41:43 AM PST US
    Subject: Living without an audio panel
    From: <longg@pjm.com>
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    Message 12


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    Time: 07:44:52 AM PST US
    From: Harley <harley@AgelessWings.com>
    Subject: Re: Forum Search Problem & RSS Feed Question
    >> >> Just finished reading AEC and new to forum, building RV-7. I have 2 >> questions related to forum administration: >> >> 1. Why is it that when I search the archives on a particular topic, >> and I view one of the threads that came up in the search, I cannot >> return to the "search results" page by pressing "back" in my >> browser? Instead I get a "web page expired" and have to repeat the >> search - every time! Truly a pain. I do not have this problem on >> other forums, just matronics. > > Most web browsers allow you to open a link in a new window or tab, > keeping the original window available. Then when you close the window > for the new link, the old window with the search results is still > there. The exact way to do this varies from browser to browser, and > operating system to operating system. For many browsers in many > operating systems you would press and hold the Ctrl key, then click > the link. > > -- > Kevin Horton (Grounded) > RV-8 (Flight Test Phase) > Ottawa, Canada > http://www.kilohotel.com/rv8 With Firefix, just right click the link and select "Open in a new Window" or "Open in a new Tab". However, when I write something for my website, I include "Target=blank" in the html code for any links so that ANY browser using it will open a new window or tab without being asked or ordered to. IMHO, all web authors using html should do this to prevent just the problem that's mentioned above. Harley


    Message 13


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    Time: 07:46:49 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Living without an audio panel
    At 08:28 AM 7/2/2009, you wrote: >I know this has been discussed before, please excuse, I am still confused. > >My intercom will accept one monaural input. > >I want to simply "twist" all the low level audio outputs together >from the various boxes to the intercom (then solder or crimp). This >will make the volume control on the box and its on-off switch the >control for that unit. > >What do I put in line between the intercom input and each >box? resistor, diode, snapjack, or do I need a small isolation amplifier? Try series resistors as passive mixing devices. This will take some fiddling but it may get you by. This is described in figure 18-4 and associated text of the 'Connection. Alternatively, consider a small mixing (audio iso) amplifier. An exemplar DIY project is offered at http://www.aeroelectric.com/DIY/Audio_Isolation_Amplifier.pdf there's a number of off-the-self products out there too. Somebody announced their new offerings here on the List a few weeks ago. I've had a number of requests for the ECB to build an amplifier from scratch. I'm putting the bare ECB back on the website catalog in a few minutes. > >On switching the comm, I assume I need a 4pdt (on-on) to >switch=====-mic, ptt, indicator light, and audio low so I don't get >confused which comm I am listening to while transmitting? > >Or is there a simple way to maybe add a resistor to the switch so >that the non-transmitting comm is still on but with a reduced output? I don't know if that's available even in the super-whizzy audio panels. It can be done but certainly calls for a lot of development effort. Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 14


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    Time: 08:15:32 AM PST US
    From: "rv7a.builder" <rv7a.builder@yahoo.com>
    Subject: Re: RE: self weighing our planes
    Perhaps knowing something about the weight and CG in case you need to make a landing, especially an emergency landing? JR ----- Original Message ---- From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com> Sent: Thursday, July 2, 2009 7:19:08 AM Subject: Re: AeroElectric-List: RE: self weighing our planes At 07:29 AM 7/2/2009, you wrote: > > IIRC, the Airbus A-320 family of aircraft weigh themselves. Right after > takeoff, and for the reasons cited previously... Hmmmm . . . that perhaps answers some questions about maintain strain gage calibration that accounts for creep in offsets. Waiting until after t.o to display weight gets them a "zero weight" value off the gear stress sensors that becomes a new baseline for the next weighing action. But that does beg the question as to what's the value of knowing that you're over-gross/out-of-CG AFTER takeoff? Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 15


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    Time: 08:20:46 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: RE: self weighing our planes
    At 10:12 AM 7/2/2009, you wrote: ><rv7a.builder@yahoo.com> > > >Perhaps knowing something about the weight and CG in case you need >to make a landing, especially an emergency landing? JR > But is it not an FAA mandate (and a damned good idea) that the pilot know that weight and balance limits have been checked BEFORE takeoff? Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 16


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    Time: 08:31:10 AM PST US
    From: BobsV35B@aol.com
    Subject: Re: RE: self weighing our planes
    Good Morning Bob, It has to do with something like: "The best laid plans of mice and men ------ " Happy Skies, Old Bob In a message dated 7/2/2009 10:22:05 A.M. Central Daylight Time, nuckolls.bob@aeroelectric.com writes: --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com> At 10:12 AM 7/2/2009, you wrote: ><rv7a.builder@yahoo.com> > > >Perhaps knowing something about the weight and CG in case you need >to make a landing, especially an emergency landing? JR > But is it not an FAA mandate (and a damned good idea) that the pilot know that weight and balance limits have been checked BEFORE takeoff? Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) --------------------------------------- ======================== =========== ======================== =========== ======================== =========== ======================== =========== **************Dell Summer Savings: Cool Deals on Popular Laptops =93 Shop Now! =http:%2F%2Faltfarm.mediaplex.com%2Fad%2Fck%2F12309%2D81939%2D1629%2D1)


    Message 17


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    Time: 10:35:36 AM PST US
    Subject: Re: Forum Search Problem & RSS Feed Question
    From: "Noah" <sgninc@cox.net>
    Thanks for the responses guys. Bob, just curious why you started a new thread rather than respond to my original post, keeping this discussion all in one thread? Kevin, I'm using IE-7, and you suggest a reasonable workaround by opening a new tab. Sometimes, however, opening a new tab can take up to 30 seconds do display anything. In any event, I'm still not clear why I can do this without issue on other forums (VAF for instance) and why it's different here. Perhaps Matt can fix this. Google Chrome also does not exhibit this behavior. Another feature I like on some other forums is that from the home page or search results page, you can "hover over" the thread title to read the first couple of sentences of the first post. VERY handy to see if it's something worth reading without taking the time to click in, wait, read, and click back out. It's all about reducing mouse clicks, you know! -------- Highest Regards, Noah Forden RV-7A Rhode Island Read this topic online here: http://forums.matronics.com/viewtopic.php?p=251165#251165


    Message 18


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    Time: 11:26:09 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Forum Search Problem & RSS Feed Question
    Subject: AeroElectric-List: Re: Forum Search Problem & RSS Feed Question From: "Noah" <sgninc@cox.net> Thanks for the responses guys. Bob, just curious why you started a new thread rather than respond to my original post, keeping this discussion all in one thread? Don't think I did. This is a reply to the original from my trash bin just as it came to me about 8:00 this morning ------------------------- At 07:54 AM 7/2/2009, you wrote: > >Just finished reading AEC and new to forum, building RV-7. I have 2 >questions related to forum administration: > >1. Why is it that when I search the archives on a particular topic, >and I view one of the threads that came up in the search, I cannot >return to the "search results" page by pressing "back" in my >browser? Instead I get a "web page expired" and have to repeat the >search - every time! Truly a pain. I do not have this problem on >other forums, just matronics. > >2. Is there a way yo get an RSS feed from this forum to my home page? > >Thanks, > >---------------------- Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 19


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    Time: 12:12:26 PM PST US
    From: Ernest Christley <echristley@nc.rr.com>
    Subject: Re: self weighing our planes
    Kevin Horton wrote: > > > One big problem will be that as you add weight, and the gear flexes, > the bottom end of the gear legs need to move outwards. If you are > stopped, the friction between the tires and the ground prevent the > bottom ends of the gear legs from spreading apart. Once you start to > move, and the wheels roll, the wheels will spread apart a bit to allow > the gear legs to take up their new natural position. So, once the > aircraft is loaded, you won't get a repeatable measurement until the > aircraft rolls a few feet. If while the aircraft is rolling, a tire > comes upon a piece of ground that is not even from side to side, that > will tend to make the wheel roll a bit to the left or right of its > natural position, which will affect the strain on the upper end of the > gear leg, changing the strain gauge output. > > There is no harm in conducting the experiment, but I'm not optimistic > that you would be able to get acceptable accuracy in the real world. > I'll be amazed if you get accuracy better than 100 lb. > I'd expect that what you'd get is a readout that bounced around. The question is, does it bounce around the middle of your W&B range, or is it bouncing around one of the extremes? If you use it for a sanity check, it could be a useful tool. No one really needs the weight to within a 1/4 oz anyway, just whether the wife was lying about how many shoes she was taking. If you're trying to use it to get an exact W&B, I'd say you were fooling yourself. BTW, Kevin. If I were within 100lbs of gross or 1/2" of my CG limit, I'd be reweighing stuff and re-doing my calculation a couple more times with extra care anyway 8*) -- http://www.ernest.isa-geek.org


    Message 20


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    Time: 12:51:38 PM PST US
    From: "Gordon Smith" <gordonrsmith921@yahoo.com>
    Subject: AEC Products - Future Z Revisions?
    Given: Electrically Dependent Engine Internally Regulated Alternator Z-19 + Z-24 AEC 9005 Discontinued AEC 9004 & AEC 9011 to be available at a later date. Question: How to best accomplish OV/LV Control with Automatic Aux Battery Contactor Control? My thoughts: AEC 9011 doesn't appear to have an output capable of the Aux Battery Contactor Automatic control, and therefore might not be appropriate in this example as an alternate replacement for the AEC 9005. It appears that the #1 terminal of the AEC 9004 might be used to not only control the Alternator OV Disconnect Contactor but also to offer automatic control of the Aux Battery Contactor. Or would something such as the LVWAABM by Eric Jones have to be employed in addition to the AEC 9004? Gordon Smith


    Message 21


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    Time: 01:14:50 PM PST US
    Subject: Re: Forum Search Problem & RSS Feed Question
    From: "Noah" <sgninc@cox.net>
    > Don't think I did. This is a reply to the original > from my trash bin just as it came to me about 8:00 this > morning Hmmm, maybe this forum works differently than I am used to. In the forums I am familiar with, when you start a thread, your post is the first in the thread. When I look at this thread on the matronics website, http://forums.matronics.com/viewtopic.php?p=251177#251177 my initial post is nowhere to be found, and your post is the first one in the thread, quoting my post. The thread with my post as the thread starter is now an orphan: http://forums.matronics.com/viewtopic.php?t=59831 Perhaps this is just a weirdness of matronics, I don't know. -------- Highest Regards, Noah Forden RV-7A Rhode Island Read this topic online here: http://forums.matronics.com/viewtopic.php?p=251197#251197


    Message 22


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    Time: 01:58:59 PM PST US
    From: Matt Dralle <dralle@matronics.com>
    Subject: Re: Forum Search Problem & RSS Feed Question
    At 01:11 PM 7/2/2009 Thursday, you wrote: > > >> Don't think I did. This is a reply to the original >> from my trash bin just as it came to me about 8:00 this >> morning > > >Hmmm, maybe this forum works differently than I am used to. In the forums I am familiar with, when you start a thread, your post is the first in the thread. When I look at this thread on the matronics website, >http://forums.matronics.com/viewtopic.php?p=251177#251177 >my initial post is nowhere to be found, and your post is the first one in the thread, quoting my post. The thread with my post as the thread starter is now an orphan: >http://forums.matronics.com/viewtopic.php?t=59831 > >Perhaps this is just a weirdness of matronics, I don't know. > >-------- >Highest Regards, > >Noah Forden >RV-7A >Rhode Island The "weirdness" stems from the fact that the Matronics Lists are both an Email Distribution List and a web-based Forum interface. Messages are automatically cross-posted between the two mediums and most of the time it works as advertised. Every once in a while, though, the utility that takes the incoming email and cross posts it to the forums can't figure out if the message thread already exists on the forums and this is when you end up with what appear to be duplicate threads on the forums. I think that the utility trys to use the email MessageID: header to do the threading. Most email programs will try to keep the MessageID: intact if a person "replies" to a message. But sometimes they don't. I think this might be when the threading issues occur. Matt Dralle


    Message 23


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    Time: 03:01:48 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: AEC Products - Future Z Revisions?
    At 02:44 PM 7/2/2009, you wrote: >Given: >Electrically Dependent Engine >Internally Regulated Alternator >Z-19 + Z-24 >AEC 9005 Discontinued >AEC 9004 & AEC 9011 to be available at a later date. >Question: >How to best accomplish OV/LV Control with Automatic Aux Battery >Contactor Control? >My thoughts: >AEC 9011 doesn't appear to have an output capable of the Aux Battery >Contactor Automatic control, and therefore might not be appropriate >in this example as an alternate replacement for the AEC 9005. Yes it does and yes it COULD be used that way but . . . >It appears that the #1 terminal of the AEC 9004 might be used to not >only control the Alternator OV Disconnect Contactor but also to >offer automatic control of the Aux Battery Contactor. No, you don't want to mix these functions PARTICULARLY when they're managed by a common microcontroller. Independence and separation is a keystone for non-propagating, failure-tolerant design. >Or would something such as the LVWAABM by Eric Jones have to be >employed in addition to the AEC 9004? Yes, any of the lv-warn, aux battery management products can be teamed with the ACE9004. Note that the AEC9011 monitors for lv conditions on both the main bus (+14v input terminal) and on any second input of your choice. In this case, I'd make it the aux battery bus. If you want to use BOTH batteries for cranking, then both battery switches are ON from start to finish in flight. If the aux battery is used to support electro- whizzies not designed to live in the world of GA aircraft the aux battery switch stays off until after the engine is started. Then, you are discouraged from leaving the aux battery switch OFF by a flashing light that reminds you that it is not being charged. The AEC9011 would not be used to manage b-lead disconnection. The AEC9004 has features that manage timing of the power to the b-lead contactor in addition to clamping off any resulting load-dump transient. This is orchestrated by software in a dedicated controller that is can be pre-flight testable. The AEC9011 gets preflight tested in that both LV lights flash on first power up and stop flashing as their respective watch-points rise above 13.0 volts. The AEC9011 used to manage an aux battery system would not offer an automatic contactor control pin, only a warning light. This lets you do the job with a less expensive switch that is either OFF or ON. Bob . . . --------------------------------------- ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------


    Message 24


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    Time: 04:43:18 PM PST US
    From: Dale Rogers <dale.r@cox.net>
    Subject: Re: Forum Search Problem & RSS Feed Question
    Noah, Firefox is free, and it co-exists quite nicely on the same system with IE, even if IE remains the default browser. It's worth the small investment of your time to go to http://www.mozilla.com/ and download the latest version and compare it with the MickeySoft product you're currently using Dale R. COZY MkIV #0497 Noah wrote: > > Thanks for the responses guys. > > Bob, just curious why you started a new thread rather than respond to my original post, keeping this discussion all in one thread? > > Kevin, I'm using IE-7, and you suggest a reasonable workaround by opening a new tab. Sometimes, however, opening a new tab can take up to 30 seconds do display anything. In any event, I'm still not clear why I can do this without issue on other forums (VAF for instance) and why it's different here. Perhaps Matt can fix this. Google Chrome also does not exhibit this behavior. > > Another feature I like on some other forums is that from the home page or search results page, you can "hover over" the thread title to read the first couple of sentences of the first post. VERY handy to see if it's something worth reading without taking the time to click in, wait, read, and click back out. It's all about reducing mouse clicks, you know! > > -------- > Highest Regards, > > Noah Forden > RV-7A > Rhode Island >


    Message 25


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    Time: 05:55:26 PM PST US
    From: <berkut13@berkut13.com>
    Subject: Re: Race timing help
    Just pull up Google.com and type "DG-100" in. Hundreds of vendors. -James ----- Original Message ----- From: Mike Humphrey To: aeroelectric-list@matronics.com Sent: Wednesday, July 01, 2009 3:30 PM Subject: Re: AeroElectric-List: Race timing help James, Where can you buy one? Thanks, Mike H ----- Original Message ----- From: berkut13@berkut13.com To: aeroelectric-list@matronics.com Sent: Wednesday, July 01, 2009 2:49 AM Subject: Re: AeroElectric-List: Race timing help Many of us in the SARL (www.sportairrace.org) purchased low cost GPS data loggers to analyze our own performance. It records at 1sec (programmable) resolution, Lat, Long, Speed, and Alt for about 5hrs, more at lower res. The data can then be uploaded into Google Earth and viewed. It is very easy to mark the crossing of start/finish lines, turn points, etc. From that, you can derive your TRUE course timing - much more accurately than a human centric process. Eventually, the races will be timed off of these units instead of human timers and turn point observers. http://www.globalsat.com.tw/eng/product_detail_00000090.htm This is the one I use, many others are out there. Be sure the one you choose has the ability to output or export to .GPX format. This is the "standard" GPS data format that is expected by most data formatting sites and programs. I also use http://www.gpsvisualizer.com/ to colorize my track by speed, add a semi-transparent wall connected to the ground, and other things. Very neat stuff. It sure lets you know if you blow a turn or wander in altitude/heading. My closest competitor and I share our data and superimpose our tracks on GoogleEarth to see how each others performance compared. At less than $100...this things are golden in my book! James Redmon Berkut #013/Race 13 www.berkut13.com 2007 SARL Silver National Champion ----- Original Message ----- From: Greg Young To: aeroelectric-list@matronics.com Sent: Tuesday, June 30, 2009 9:54 PM Subject: AeroElectric-List: Race timing help I just participated in a type club speed event (without lawyers we'd call it a race) and the time keeping got unbelievably screwed up for such a small group (18 planes). Even though there are classes and staggered starts we got folks crossing the finish tip to tip at pattern altitude. Suffice to say that human errors on both the pilots and timers parts caused a lot of grief. Sooo... what kind of technology is out there to assist? All we really need is start and finish times for each plane. It could be plane based, ground based or a combo but it needs to be affordable for 20-30 planes to use and able to deliver the results quickly, e.g. a download and analysis of everyone's 396/496 bread crumb trail probably won't do. I was kinda thinking of giant barcodes under the wing and a 10 KW scanner at the finish point;-) Hopefully someone knows of something simpler, cheaper and more elegant. What's available? Thanks, Greg Young href="http://www.matronics.com/Navigator?AeroElectric-List">http://www. matronics.com/Navigator?AeroElectric-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c


    Message 26


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    Time: 06:23:11 PM PST US
    From: "Simon Wilson" <simon@sertech.com.au>
    Subject: Re: Forum Search Problem & RSS Feed Question
    Noah, I think you answered your own question a few posts ago. Google Chrome. Use chrome make it your default browser (Options page, Basic Tab). Chrome is so much faster than anything else it isn't funny anymore. I am a programmer and chrome is some of the slickest code I have seen. It seems to support everything except a couple of remote control programs like logmein. This is also about to change. Use Chrome isn't fast fast fast. Simon Wilson -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dale Rogers Sent: Friday, 3 July 2009 9:42 AM Subject: Re: AeroElectric-List: Re: Forum Search Problem & RSS Feed Question Noah, Firefox is free, and it co-exists quite nicely on the same system with IE, even if IE remains the default browser. It's worth the small investment of your time to go to http://www.mozilla.com/ and download the latest version and compare it with the MickeySoft product you're currently using Dale R. COZY MkIV #0497 Noah wrote: > > Thanks for the responses guys. > > Bob, just curious why you started a new thread rather than respond to my original post, keeping this discussion all in one thread? > > Kevin, I'm using IE-7, and you suggest a reasonable workaround by opening a new tab. Sometimes, however, opening a new tab can take up to 30 seconds do display anything. In any event, I'm still not clear why I can do this without issue on other forums (VAF for instance) and why it's different here. Perhaps Matt can fix this. Google Chrome also does not exhibit this behavior. > > Another feature I like on some other forums is that from the home page or search results page, you can "hover over" the thread title to read the first couple of sentences of the first post. VERY handy to see if it's something worth reading without taking the time to click in, wait, read, and click back out. It's all about reducing mouse clicks, you know! > > -------- > Highest Regards, > > Noah Forden > RV-7A > Rhode Island >


    Message 27


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    Time: 07:48:17 PM PST US
    From: "John" <rv6a@rogers.com>
    Subject: Re: Mono Plug in Stereo Jack
    Hi Getting close to doing the first flight in my RV6A. I have wired the comm jacks for use with a stereo headset, but for enhanced safety, I would like to wear my helicopter helmet for the first couple of flights. The helmet is mono with a single jack and although I have the adapter for use in an aircraft, I am unsure as to whether I will have any compatability issues re: mono to stereo, or whether there is any risk of causing damage. Appreciate any guidance provided. Thanks John Crate




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