Today's Message Index:
----------------------
1. 05:18 AM - Re: handheld radio batteries (Robert L. Nuckolls, III)
2. 05:22 AM - Re: Must strobe feed wires be shielded? (Robert L. Nuckolls, III)
3. 05:42 AM - Re: Must strobe feed wires be shielded? (shoskins@globaleyes.net)
4. 06:16 AM - Re: RG battery heads-up (Scott Bilinski)
5. 06:29 AM - Re: Pilot Controlled Battery Disconnect - (Robert L. Nuckolls, III)
6. 07:02 AM - Re: Must strobe feed wires be shielded? (Robert L. Nuckolls, III)
7. 07:24 AM - Re: Power budget (Robert L. Nuckolls, III)
8. 07:26 AM - Re: Handheld Radio Antenna (Robert L. Nuckolls, III)
9. 07:27 AM - Re: Auto headlamp (Paul Wilson)
10. 07:54 AM - Re: Electronics Course Materials (Werner Schneider)
11. 07:58 AM - Re: Electronics Course Materials (BobsV35B@aol.com)
12. 08:08 AM - Re: Electronics Course Materials (Carlos Sa)
13. 08:27 AM - landing and taxi lights (BAKEROCB@aol.com)
14. 08:49 AM - Re: Electronics Course Materials (Peter Laurence)
15. 10:03 AM - Re: Electronics Course Materials (Werner Schneider)
16. 11:15 AM - Re: Electronics Course Materials (Richard Tasker)
17. 11:30 AM - Re: Electronics Course Materials (Freddie Freeloader)
18. 11:56 AM - ALT questions (Scott Bilinski)
19. 12:08 PM - NiCads and such (Fergus Kyle)
20. 01:57 PM - Re: Electronics Course Materials (Robert L. Nuckolls, III)
21. 02:40 PM - Re: ALT questions (Robert L. Nuckolls, III)
22. 02:47 PM - Re: Re: Auto headlamp (Robert L. Nuckolls, III)
23. 02:47 PM - Re: NiCads and such (Scot Stambaugh)
24. 06:33 PM - Re: Electronics Course Materials (John & Amy Eckel)
25. 08:31 PM - Re: NiCads and such (Robert L. Nuckolls, III)
26. 09:33 PM - Yaesu Aviator Pilot (Rob W M Shipley)
27. 10:35 PM - Re: Power budget (James E. Clark)
Message 1
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| Subject: | Re: handheld radio batteries |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 07:55 PM 4/21/2003 -0700, you wrote:
>--> AeroElectric-List message posted by: Richard Scott
><rscott@cascadeaccess.com>
>
>About a year ago there was an article in Sport Aviation in which various
>brands of batteries were compared. I think the author was Electric Bob or
>Jim Wier & it was very well done. The upshot was that on a cost basis your
>best deal was to ignore the advertising hype & buy the cheapest batteries
>you can find.
>
>Richard Scott
>Interstate Cadet
Here's a reprint of the article. . .
http://216.55.140.222/articles/AA_Bat_Test.pdf
. . . I don't use rechargeable batteries for important
tasks. I have two sets of NiMH cells that I rotate through
a portable radio I use between office and workshops. For
stuff that matters, fresh AA alkaline cells go into the
gizmo at the beginning of each task . . .
Bob . . .
Message 2
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| Subject: | Must strobe feed wires be shielded? |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 05:41 PM 4/21/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: "Sam Hoskins"
><shoskins@globaleyes.net>
>
>I have received the Nova power suply from Nova, and it lights up my Whelen
>tubes just Jim Dandy. I bought the Micropak which puts out 20 Jules each to
>two tubes. Fairly light weight, simple and cheap.
>
>However, I can't squeeze the supplied cables through my existing plastic
>tube (embedded in the wing) along with the two 18AWG I need for the position
>lights. The three conductor 18 AWG shielded has a nominal diameter of
>0.246". I think the cable is Belden's #8770.
>
>I found a Belden #8771 which uses 22AWG and has a nominal diameter of
>0.199". I think that will do the trick. The run inside the composite wing
>is about eight feet.
>
>Any comments here?
Give it a try. B&C stocks a 22AWG trio shielded that they'll
sell to you by the foot. See . . .
http://www.aeroelectric.com/Catalog/BCcatalog.html
http://www.aeroelectric.com/Catalog/wire/wire.html#S906-3-22
Bob . . .
Message 3
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| Subject: | Must strobe feed wires be shielded? |
--> AeroElectric-List message posted by: "shoskins@globaleyes.net" <shoskins@globaleyes.net>
Bob,
The Belden wire has three conductors, a foil shield, and what they call a "drain"
conductor. This drain appears to be simply an unshielded wire. The B&C wire
appears to be simply three conductors and a braided shield.
Do you see any functional differences here?
Sam
At 05:41 PM 4/21/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: "Sam Hoskins"
><shoskins@globaleyes.net>
>
>I have received the Nova power suply from Nova, and it lights up my Whelen
>tubes just Jim Dandy. I bought the Micropak which puts out 20 Jules each to
>two tubes. Fairly light weight, simple and cheap.
>
>However, I can't squeeze the supplied cables through my existing plastic
>tube (embedded in the wing) along with the two 18AWG I need for the position
>lights. The three conductor 18 AWG shielded has a nominal diameter of
>0.246". I think the cable is Belden's #8770.
>
>I found a Belden #8771 which uses 22AWG and has a nominal diameter of
>0.199". I think that will do the trick. The run inside the composite wing
>is about eight feet.
>
>Any comments here?
Give it a try. B&C stocks a 22AWG trio shielded that they'll
sell to you by the foot. See . . .
http://www.aeroelectric.com/Catalog/BCcatalog.html
http://www.aeroelectric.com/Catalog/wire/wire.html#S906-3-22
Bob . . .
Message 4
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| Subject: | Re: RG battery heads-up |
--> AeroElectric-List message posted by: Scott Bilinski <bilinski@kyocera-wireless.com>
Even cheaper!
WWW.BATTERIES4EVERYTHING.COM
Search for Odyssey, Hawker, Cyclon, Genesis Batteries by Manufacturer
Please click the Shopping Cart in the upper right corner of an item to add
a product to your shopping cart.
Power Sports-BMW, ATV w/no metal jacket or SAE posts
Quantity:
Part Number: 43105
Manufacturer Part Number: PC680
Weight: 14.4 lbs
Price: $62.55
Chemical Type: SLA
Nom V: 12V
Capacity: Ah
Dimensions: 7.0x3 1/16x 6 5/8 inches
Terminal Connection Type:
Electrolyte Required: N/A
At 06:12 PM 4/21/03 -0700, you wrote:
>--> AeroElectric-List message posted by: "Dan Checkoway" <dan@rvproject.com>
>
>http://www.sunnbattery.bigstep.com/item.jhtml?PRID=1292858
>
>Odyssey PC680 for $74.59 plus $5.50 shipping. As hard as I tried, I
>couldn't beat that price with a stick.
>
>)_( Dan
>RV-7 N714D (finish)
>http://www.rvproject.com
>
>----- Original Message -----
>From: "J Davis" <jd@lri.sjhc.london.on.ca>
>To: <aeroelectric-list@matronics.com>
>Subject: Re: AeroElectric-List: RG battery heads-up
>
>
>> --> AeroElectric-List message posted by: J Davis
><jd@lri.sjhc.london.on.ca>
>>
>> On Mon, 21 Apr 2003, Robert L. Nuckolls, III wrote:
>>
>> > If a part substitution is being considered to relieve
>> > a diagnosed failure mode, why not substitute a less stiff
>> > battery jumper? Welding cable makes a nice, very flexible
>> > alternative to classic "aircraft" wire.
>> >
>>
>> Agreed, and done.
>>
>> > I'm skeptical that this post broke off purely from the
>> > stresses of one-hour of service. I suspect it was damaged
>> > in some way before it got installed on the airplane.
>>
>> Maybe, but I think I would have noticed when I installed the battery
>> and connected the terminal to the post. This engine shake like a dog
>> climbing out of the creek when it starts, shuts down and below 2500
>> rpm. Its a function of the gear reduction drive...
>>
>> > There are lots of batteries with a variety of post
>> > designs out there . . . find a heftier post if you
>> > don't want to change the wire.
>>
>> Yes, the Odyssey suggestion was a good one. It just happened that
>> the Panasonics were locally available, so I did an archive search,
>> saw many satisfied Panasonic users, and went for it. The puny post
>> should have set off an alarm bell immediately, but since I was
>> replacing an identical Panasonic, it didn't.
>>
>> > This particular series
>> > of batteries has been in service in airplanes for
>> > about ten years and have accumulated tens of thousands of
>> > hours of service with their posts intact.
>> >
>>
>> It would really surprise me if this was the first and only case of
>> the [Panasonic] post cracking/breaking, simply from a design p.o.v.
>> The post is only 5mm thick by 10mm wide!
>>
>> > Going back to a wet battery just to get a more
>> > robust post is like going back to a PC-XT just
>> > 'cause you had trouble with the USB port on your new
>> > Byte-Thrasher 2000 . . .
>> >
>>
>> Yeah, but I don't think the analogy is that good. Maybe more like
>> adding on a 3rd party USB port card which fails, for whatever
>> reason, and then deciding to simply go back to the old, heavy,
>> cheaper, tried-and-true serial port ;')
>>
>> Just for the record, the Yuasa wet lead battery is $59 CAD at the
>> local farm supply store (TSC), the Panasonic was $93, and Odyssey
>> seems to cost ~$100 USD which would end up closer to $175 landed.
>> That means one could buy three Yuasas for the price of a single
>> Odyssey.
>>
>> Don't get me wrong... I do believe the RG technology is far superior
>> to the old wet cell. It's just that in this particular case, all
>> things considered, it makes sense to revert to the same battery
>> I've used w/o incident in my vintage BMW R60/5 for over 25 years
>> now.
>>
>>
>> --
>> Regards, J.
>>
>> flying: Zenair STOL CH701/582 C-IGGY , > 250 hrs.
>> building: Sonex #325, engine probably Jabiru 3300/6/120hp
>>
>> | J. Davis, M.Sc. (comp_sci) | UNIX consultant |
>> | SysMgr, research programmer | email: jd@uwo.ca |
>> | Lawson Health Research Inst.| voice: (519) 646 6100 x64166 |
>> | London, Ontario | fax: (519) 646 6385 |
>> | Canada | lriweb.sjhc.london.on.ca/~jd |
>>
>>
>> "Debt can be a powerful asset."
>> -- Merrill-Lynch radio ad
>>
>>
>
>
Scott Bilinski
Eng dept 305
Phone (858) 657-2536
Pager (858) 502-5190
Message 5
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| Subject: | Re: Pilot Controlled Battery Disconnect - |
help Bob
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 12:38 PM 4/21/2003 -0600, you wrote:
>--> AeroElectric-List message posted by: "Rick Fogerson" <rickf@cableone.net>
>
>Hi Bob,
>Let me try this again with my questions below.
Sorry to take so long to get back to this . . . been busy.
Download
http://216.55.140.222/temp/v1.pdf
http://216.55.140.222/temp/v2.pdf
http://216.55.140.222/temp/v3.pdf
. . . trim with scissors and use transparent tape to
put these three drawings together into a larger, easier
to read document.
This illustrates a technique for installing control relays
adjacent to the battery bus when switched loads are protected
at greater than 7A . . . FAA would like to see these relays
for loads greater than 5A . . . it's problematical. We're
talking about crash safety and I'm reasonably certain that
the 5A convention was pretty much pulled out of a hat . . .
They are "comfortable" with both 5A fuses and 5A breakers.
Breakers are so much slower than fuses as to represent at
least an order of magnitude greater hazard with respect to
how much energy can be dumped into a fault before the protection
operates . . . given that truly modern airplanes use fuses,
I'd be comfortable with hardwired battery bus lines of 7A or
less and only install relays for 10 and larger feeds.
I'm going to add this technique to the 'Connection at
Rev 11.
Bob . . .
Message 6
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| Subject: | Must strobe feed wires be shielded? |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 07:42 AM 4/22/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: "shoskins@globaleyes.net"
><shoskins@globaleyes.net>
>
>Bob,
>
>The Belden wire has three conductors, a foil shield, and what they call a
>"drain" conductor. This drain appears to be simply an unshielded
>wire. The B&C wire appears to be simply three conductors and a braided shield.
>
>Do you see any functional differences here?
Very tiny . . . the foil shield is made of aluminum . . .
nearly impossible to connect to electrically. Hence,
an un-insulated "drain" wire included within the
cable's make-up so as to provide an electrical connection
to the foil - a built-in pig-tail if you will.
The overbraided shield is slightly less coverage
than foil but not so much as to make any difference
to you. Further, the Belden product is PVC insulated
and won't have the longevity of a Tefzel product.
Bob. . .
Message 7
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--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 10:44 AM 4/21/2003 -0400, you wrote:
>--> AeroElectric-List message posted by: "James E. Clark"
><james@nextupventures.com>
>
>We are using the "stock", "35 amp" alternator from Van's.
>
>No modifications or changes etc.
>
>The alternator works so I am not complaining about that. I wanted others to
>be aware that there are **SOME** alternators that might not produce as much
>current as they expect during lower than cruise situations.
>
>What would be ***REALLY*** helpful is if we could get a chart built that
>showed tha ACTUAL output of these alternators at 1000, 1500, 2000 and 2500
>RPM.
>
>Bob, I think you may have referenced values for the B&C units some time
>back. And as I recall, it pointed out that in certain scenarios, the 40 amp
>B&C (yes it cost a lot more) has a LOT more output than the Van's offered 35
>amp unit. I think it generates close to 40 amps at about 1000 or no more
>than 1500 RPM.
>
>??? Is this correct???
That's ENGINE rpm on a Lyc with the small pulley on the alternator
as supplied by B&C. At 1500 engine rpm, the alternator is running
at over 5,000 rpm and will give you full output.
No reason for any modern ND alternator to deliver similar performance.
Bob . . .
Message 8
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| Subject: | Re: Handheld Radio Antenna |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 08:06 AM 4/19/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: "William Bernard"
><billbernard@worldnet.att.net>
>
>I'd like to install a handleld radio with the 'rubber ducky' antenna
>mounted near the window. The radio will usually rest between the seats
>behind cockpit metal sides and so might not work well.
>
>Could I just put an aluminum angle on the side of the fuselage to hold a
>bulkhead mount BNC connector, or would a more elaborate ground plane be
>required/desirable?
>
>I'd like the radio to be removable to be usable as a hand held radio, so
>the antenna needs to be available in the aircraft. The goal is to be able
>to use it as a backup radio with a minimum of fuss and bother in the event
>of failure of the panel mount radio.
>
>Thanks in advance for the help.
What you propose will probably work fine.
Bob . . .
Message 9
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| Subject: | Re: Auto headlamp |
--> AeroElectric-List message posted by: Paul Wilson <pwilson@climber.org>
Bob,
I have lost the new link to your auto headlamp. It used to be 4352.jpg. Does it
have an industry part number?
Thanks, Paul
Message 10
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: "Werner Schneider" <wernerschneider@compuserve.com>
Hello Bob,
might it be, that they closed this link? I can not access it anymore for
download =(;o((
Werner
----- Original Message -----
From: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
Subject: AeroElectric-List: Electronics Course Materials
> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<bob.nuckolls@cox.net>
>
> From time to time I've been asked to recommend some texts for electronics
> neophytes. I taught for a time at Great Lakes. I was impressed with the
> quality of Navy electronics schools and really enjoyed my tenure there . .
.
> now if it had just paid enough to survive on.
>
> None the less, I've discovered that the Navy has keep up the good work
> on instructional materials for electronics and other courses. If any
> of you would like to have your own personal copies of an excellent set
> of texts . . . right-click on the following series of links and tell your
> browser where to store these files on your hard drive.
>
> Start with the first one and happy learning . . .
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
3.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
4.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
5.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
6.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
7.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
8.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
9.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
0.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
1.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
2.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
3.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
4.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
5.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
6.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
7.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
8.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1418
9.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1419
0.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1419
1.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1419
2.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1419
3.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1419
4.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1419
5.pdf
>
>
https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1419
6.pdf
>
>
> I may add these to my CD_Rom offering as well.
>
>
> Bob . . .
>
> --------------------------------------------
> ( Knowing about a thing is different than )
> ( understanding it. One can know a lot )
> ( and still understand nothing. )
> ( C.F. Kettering )
> --------------------------------------------
>
>
Message 11
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 4/22/03 9:55:47 AM Central Daylight Time,
wernerschneider@compuserve.com writes:
> might it be, that they closed this link? I can not access it anymore for
> download =(;o((
>
> Werner
>
>
Good Morning Werner,
In tried the link and it worked fine. On top of that, I am a complete
computer illiterate!
Happy Skies,
Old Bob
Message 12
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: Carlos Sa <carlosfsa@yahoo.com>
Werner, the links work fine, except if it is broken into two or more lines. In
that
case, you should copy it and paste onto your browser's URL address field .
You might need to paste it onto Notepad or some other text editor to remove the
carriage returns (i.e., put all characters on a single line) before pasting onto
the
browser.
In the text below, I see the URL is broken in two....
Good luck
Carlos
> might it be, that they closed this link? I can not access it anymore for
> download =(;o((
>
> Werner
>
> ----- Original Message -----
> >
> https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/1417
> 3.pdf
> >
Post your free ad now! http://personals.yahoo.ca
Message 13
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| Subject: | landing and taxi lights |
--> AeroElectric-List message posted by: BAKEROCB@aol.com
AeroElectric-List message previously posted by: Carlos Sa
<carlosfsa@yahoo.com>
<<Hello, listers, I'm starting to build the wings for my CH601, and intend to
have landing and taxi lights built in. I'd appreciate recommendations on the
choice of lights (criteria or specific types/brands/models), as there are
many choices out there.
Thanks in advance Carlos>>
4/22/2003
Hello Carlos, After several false starts I wound up with Pilot Light model
PL-1068BC.
I bought them from an Auto Zone store, but they were not on the shelf, I had
to order them from the Pilot Light catalog. Cost about $35 US for the pair.
Each rectangular shaped light has a driving light and a fog light lens and 2
halogen bulbs in it and comes with wiring and a switch (which you may want to
replace) and a mounting bracket.
I just did a google search and couldn't find that specific model number, but
Pilot has others that are similar. Check out
<<http://www.accessconnect.com/pilot2.htm>>
'OC' Baker, Builder of KIS TR-1 #116 4/14/97 - ?/?/?
Message 14
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: Peter Laurence <dr.laurence@mbdi.org>
Werner,
These are PDF files, try opening them with Acrobat Reader then saving.
I tryed right clicking to save them but got errors. Reader is a little
quirky on my system
Peter
----- Original Message -----
From: "Werner Schneider" <wernerschneider@compuserve.com>
Subject: Re: AeroElectric-List: Electronics Course Materials
> --> AeroElectric-List message posted by: "Werner Schneider"
<wernerschneider@compuserve.com>
>
> Hello Bob,
>
> might it be, that they closed this link? I can not access it anymore for
> download =(;o((
>
> Werner
>
Message 15
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: "Werner Schneider" <wernerschneider@compuserve.com>
Hello "old" Bob,
I can access the link, but a download is not possible =(;o((
Werner
----- Original Message -----
From: <BobsV35B@aol.com>
Subject: Re: AeroElectric-List: Electronics Course Materials
> --> AeroElectric-List message posted by: BobsV35B@aol.com
>
> In a message dated 4/22/03 9:55:47 AM Central Daylight Time,
> wernerschneider@compuserve.com writes:
>
> > might it be, that they closed this link? I can not access it anymore for
> > download =(;o((
> >
> > Werner
> >
> >
>
> Good Morning Werner,
>
> In tried the link and it worked fine. On top of that, I am a complete
> computer illiterate!
>
> Happy Skies,
>
> Old Bob
>
>
Message 16
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: Richard Tasker <retasker@optonline.net>
If you really want them, I can burn a CD and send it to you.
Contact me off line if you want.
Dick Tasker, RV9 (#90573)
Werner Schneider wrote:
>--> AeroElectric-List message posted by: "Werner Schneider" <wernerschneider@compuserve.com>
>
>Hello "old" Bob,
>
>I can access the link, but a download is not possible =(;o((
>
>Werner
>
>----- Original Message -----
>From: <BobsV35B@aol.com>
>To: <aeroelectric-list@matronics.com>
>Subject: Re: AeroElectric-List: Electronics Course Materials
>
>
>
>
>>--> AeroElectric-List message posted by: BobsV35B@aol.com
>>
>>In a message dated 4/22/03 9:55:47 AM Central Daylight Time,
>>wernerschneider@compuserve.com writes:
>>
>>
>>
>>>might it be, that they closed this link? I can not access it anymore for
>>>download =(;o((
>>>
>>>Werner
>>>
>>>
>>>
>>>
>>Good Morning Werner,
>>
>>In tried the link and it worked fine. On top of that, I am a complete
>>computer illiterate!
>>
>>Happy Skies,
>>
>>Old Bob
>>
>>
>>
>>
>
>
>
>
Message 17
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: Freddie Freeloader <lists@stevet.net>
Hello All,
If you will look at each of the links below, they all begin with
"https". I think that many of you might have better luck if you
drop the "s", making it simply "http". This will eliminate the
secure link, but it is not necessary for this stuff and should
make everything work faster.
Copy and paste the link into your browser, and then delete the "s"
from "https".
--
Best regards,
Freddie mailto:lists@stevet.net
Monday, April 21, 2003, 2:15:58 PM, you wrote:
-->> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
<snip>
RLNI> https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/fullbook/14173.pdf
<snip>
Message 18
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--> AeroElectric-List message posted by: Scott Bilinski <bilinski@kyocera-wireless.com>
Does your typical 35/40 amp alt (W/O fan) need a cooling tube? If it does
should it be blowing on the back or front of the alt?
Alt pulley, does it need to be so small? Will I see any benifit from
installing the larger one from ACS?
What about possible rain intering the cooling tube and then blowing onto
the alt?
Scott Bilinski
Eng dept 305
Phone (858) 657-2536
Pager (858) 502-5190
Message 19
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--> AeroElectric-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
Scot,
"I have a sophisticated charger that can accurately measure battery capacity
and I compared the old NiCad pack to the new setup and measured better than
9 times improvement. Although I must say that the old pack was in pretty
bad shape. It would only last about 2 hours with no transmitting. "
This prompted several thoughts:
[1] NiCads are strange wee boogers. They produce at 1.27V unlike
LeClanche (carbon) cells which test at 1.50V,
[2] They have a funny memory. If you leave them lying around, they will
slowly lose power,
[3] If you let them lie around when they are already uncharged the
weekest cell will reverse polarity, and the rest will try to overcome the
loss,
[4] I bet you didn't check for a week cell (who would?) so tossed it, and
[5] NiMH batts already have a superior storage capabiltity but are more
expensive.
Good rules are:
If you want to keep trusty NiCads going, exercise them - say monthly. Never
store them uncharged. If you know the number of cells in the pack, recharge
them when they are down to 1.0V per cell - and charge them to 1.27V/cell -
usually takes 1/10th their amperehour rating for 14 or 15 hours. I had
responsibility for radio club emer batts and kept eight packs alive for 5
years by exercising them monthly. The next guy did nothing and they were all
toast in one year. It takes attention, though.
Cheers
Ferg
PS: Don't tell the model aircraft folk - I radioed for two years on their
"throw-aways".
Message 20
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 07:00 PM 4/22/2003 +0200, you wrote:
--> AeroElectric-List message posted by: "Werner Schneider"
<wernerschneider@compuserve.com>
Hello "old" Bob,
I can access the link, but a download is not possible =(;o((
Watch for wrapping by your e-mail client that may truncate
the url as passed to your broswer. Also, I note that for
some strange reason, they all start with "https", can't
imagine why they thought encrypted transfers were useful
here . . .
In any case, I've added the whole package to my CD which
has been rolled up to version 8.0. You can download the
whole CD with the manuals from
I've uploaded a .zip file of the training texts to:
http://216.55.140.222/CD/Text.zip
If you'd like to get the latest CD with the texts
you can download at:
http://216.55.140.222/CD/AEC8_0.zip
or order from the website at:
http://www.aeroelectric.com/Catalog/AECcatalog.html
Bob . . .
Message 21
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| Subject: | Re: ALT questions |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 11:56 AM 4/22/2003 -0700, you wrote:
>--> AeroElectric-List message posted by: Scott Bilinski
><bilinski@kyocera-wireless.com>
>
>Does your typical 35/40 amp alt (W/O fan) need a cooling tube? If it does
>should it be blowing on the back or front of the alt?
Depends on the environment in which it resides. If it HAD
an external fan that was removed (common on several recommended
installations
of years past), I would have some concerns. Modern alternators
have fans internal to the alternator . . .
Check with builders of your aircraft to see how their alternators
are performing and how they installed them. If you are truly
interested in the REAL answer, plan on installing a thermocouple
on the alternator and getting some data during your flyoff.
>Alt pulley, does it need to be so small? Will I see any benifit from
>installing the larger one from ACS?
running faster increases cooling from internal fans and
improves output at ramp RPMs. The larger pulley was developed
to offset perceived bearing life problems due to "overspeed" when
in fact, the bearings will run very happily at high speed
as long as the rotor is balanced well.
>What about possible rain intering the cooling tube and then blowing onto
>the alt?
The alternators on most cars get road splash. Alternators
on Bonanzas is right in the cooling air stream as it enters
the cowl. This doesn't seem to be a big issue.
Bob . . .
Message 22
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| Subject: | Re: Auto headlamp |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 08:24 AM 4/22/2003 -0600, you wrote:
>--> AeroElectric-List message posted by: Paul Wilson <pwilson@climber.org>
>
>Bob,
> I have lost the new link to your auto headlamp. It used to be 4352.jpg.
http://216.55.140.222/temp/4352.JPG
> Does it have an industry part number?
4352
Bob . . .
Message 23
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| Subject: | Re: NiCads and such |
--> AeroElectric-List message posted by: Scot Stambaugh <sstambaugh@qualcomm.com>
thanks Fergus. Good data.
At 03:09 PM 4/22/2003 -0400, Fergus Kyle wrote:
>--> AeroElectric-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
>
>Scot,
>"I have a sophisticated charger that can accurately measure battery capacity
>and I compared the old NiCad pack to the new setup and measured better than
>9 times improvement. Although I must say that the old pack was in pretty
>bad shape. It would only last about 2 hours with no transmitting. "
>
> This prompted several thoughts:
>[1] NiCads are strange wee boogers. They produce at 1.27V unlike
>LeClanche (carbon) cells which test at 1.50V,
>[2] They have a funny memory. If you leave them lying around, they will
>slowly lose power,
>[3] If you let them lie around when they are already uncharged the
>weekest cell will reverse polarity, and the rest will try to overcome the
>loss,
>[4] I bet you didn't check for a week cell (who would?) so tossed it, and
>[5] NiMH batts already have a superior storage capabiltity but are more
>expensive.
>
>Good rules are:
>If you want to keep trusty NiCads going, exercise them - say monthly. Never
>store them uncharged. If you know the number of cells in the pack, recharge
>them when they are down to 1.0V per cell - and charge them to 1.27V/cell -
>usually takes 1/10th their amperehour rating for 14 or 15 hours. I had
>responsibility for radio club emer batts and kept eight packs alive for 5
>years by exercising them monthly. The next guy did nothing and they were all
>toast in one year. It takes attention, though.
>Cheers
>Ferg
>PS: Don't tell the model aircraft folk - I radioed for two years on their
>"throw-aways".
>
>
Message 24
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| Subject: | Re: Electronics Course Materials |
--> AeroElectric-List message posted by: John & Amy Eckel <eckel1@comcast.net>
I also had trouble saving the files with the right click. My wife showed me
a diskette symbol in the upper left corner of the Adobe window and I was
able to save everything.
do not archive
John
----- Original Message -----
From: "Peter Laurence" <dr.laurence@mbdi.org>
Subject: Re: AeroElectric-List: Electronics Course Materials
> --> AeroElectric-List message posted by: Peter Laurence
<dr.laurence@mbdi.org>
>
> Werner,
>
> These are PDF files, try opening them with Acrobat Reader then saving.
> I tryed right clicking to save them but got errors. Reader is a little
> quirky on my system
>
> Peter
> ----- Original Message -----
> From: "Werner Schneider" <wernerschneider@compuserve.com>
> To: <aeroelectric-list@matronics.com>
> Subject: Re: AeroElectric-List: Electronics Course Materials
>
>
> > --> AeroElectric-List message posted by: "Werner Schneider"
> <wernerschneider@compuserve.com>
> >
> > Hello Bob,
> >
> > might it be, that they closed this link? I can not access it anymore for
> > download =(;o((
> >
> > Werner
> >
>
>
Message 25
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| Subject: | Re: NiCads and such |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 03:09 PM 4/22/2003 -0400, you wrote:
>--> AeroElectric-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
>
>Scot,
>"I have a sophisticated charger that can accurately measure battery capacity
>and I compared the old NiCad pack to the new setup and measured better than
>9 times improvement. Although I must say that the old pack was in pretty
>bad shape. It would only last about 2 hours with no transmitting. "
>
> This prompted several thoughts:
>[1] NiCads are strange wee boogers. They produce at 1.27V unlike
>LeClanche (carbon) cells which test at 1.50V,
This is why many radios have 10 cells in their nicad/nimh battery
packs and only 8 cells in their AA_Alkaline packs.
>[2] They have a funny memory. If you leave them lying around, they will
>slowly lose power,
There was a phenomenon called "memory effect" that was more a
function of usage environment, cell construction and position of
the cell in it's service life. Here's one of the more lucid
FAQs I've seen on the 'net concerning nicads:
http://www.batterieswholesale.com/faq_nicad.htm
>[3] If you let them lie around when they are already uncharged the
>weekest cell will reverse polarity, and the rest will try to overcome the
>loss,
. . . over discharging (continuing to load an array of cells after
the first ones drop below 1.0) volts is the best way to reverse one
or more cells in the array. See
http://www.batterieswholesale.com/faq_nicad.htm#13
>[4] I bet you didn't check for a week cell (who would?) so tossed it, and
>[5] NiMH batts already have a superior storage capabiltity but are more
>expensive.
They're getting better. You can buy a 1800 mah rated nimh for about
$3.00/cell on the 'net. See:
http://www.onlybatteries.com/showitem.asp?ItemID=10869.1
Be cautious of the "high capacity" cells in applications where
high discharge current is needed. Capacity is added by stuffing
more active material into porous plates which INCREASES cell
resistance . . . I'm thinking about expanding on the AA Battery
article to include some studies on nicad and nimh cells. Except
for situations needing high discharge capability, AA alkaline
cells still have more available energy for use than all but the
highest capacity nimh cells.
>Good rules are:
>If you want to keep trusty NiCads going, exercise them - say monthly. Never
>store them uncharged. If you know the number of cells in the pack, recharge
>them when they are down to 1.0V per cell - and charge them to 1.27V/cell -
>usually takes 1/10th their amperehour rating for 14 or 15 hours. I had
>responsibility for radio club emer batts and kept eight packs alive for 5
>years by exercising them monthly. The next guy did nothing and they were all
>toast in one year. It takes attention, though.
The nicad/nimh products have a self discharge rate of about 1% per
day. I've had really good luck with true "trickle" charging for
both nicads and nimh cells . . . the 1 to 2 ma charge rate suggested
in the FAQ cited above works good and won't damage the cells by
overcharging. The "wall-wart" style chargers designed to recharge
AA cells overnight are very hard on cells . . . don't store cells
in one of these things to keep them "ready to go" . . . the
goal is to just overcome self-discharge rates so a "sustaining"
fixture is much lower power output than most of the practical
overnight chargers.
I've found that nicads in my cordless phones get 20-30 ma constant
charge while the handset is in place . . . this is why you only get
about a year of service from most cordless telephone nicads.
Bob . . .
Message 26
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| Subject: | Yaesu Aviator Pilot |
--> AeroElectric-List message posted by: "Rob W M Shipley" <Rob@RobsGlass.com>
I've had this Yaesu handheld navcom for about three years as a backup and (fortunately)
had little occasion to use it to transmit. A couple of weeks ago whilst
providing ground support to a gliding friend I attempted to use this radio.
Receive is fine but Xmit produces a loud 'scream' on any radio on the frequency.
This was tested with three different antennas on the Yaesu and three different
receiving radios.
Does anyone on the list have a similar experience with these radios and what are
suggested solutions? Return to Yaesu?
Thanks
Rob
Rob W M Shipley
RV9A N919RV Fuselage.
Message 27
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--> AeroElectric-List message posted by: "James E. Clark" <james@nextupventures.com>
Bob, yes, I meant to say ENGINE RPM.
BTW, do you have any idea as to the output of the 20 amp model at 1500
(engine) RPM when mounted on the accessory case?
Thanks,
James
<<<SNIP >>>
> >Bob, I think you may have referenced values for the B&C units some time
> >back. And as I recall, it pointed out that in certain scenarios,
> the 40 amp
> >B&C (yes it cost a lot more) has a LOT more output than the
> Van's offered 35
> >amp unit. I think it generates close to 40 amps at about 1000 or no more
> >than 1500 RPM.
> >
> >??? Is this correct???
>
> That's ENGINE rpm on a Lyc with the small pulley on the alternator
> as supplied by B&C. At 1500 engine rpm, the alternator is running
> at over 5,000 rpm and will give you full output.
>
> No reason for any modern ND alternator to deliver similar performance.
>
> Bob . . .
>
>
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