Today's Message Index:
----------------------
1. 06:51 AM - Re: Studies in the fine art of worrying (nuckollsr)
2. 08:24 AM - Re: Re: kitfox /rotax 912 wiring diagram (variation on Z-16) (Sacha)
3. 11:46 AM - Strange days in South Africa (Jay Hyde)
4. 12:43 PM - Re: Strange days in South Africa (Bill Watson)
5. 01:43 PM - Re: Strange days in South Africa (Charlie England)
6. 03:52 PM - Re: Strange days in South Africa (Roger & Jean)
7. 04:33 PM - Re: Strange days in South Africa ()
8. 04:33 PM - Re: Strange days in South Africa (James Robinson)
Message 1
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| Subject: | Re: Studies in the fine art of worrying |
> Just received a heads-up on this new product . . .
>
> Someone has apparently studied the state of current
> arts for joining of wires (and protecting the joint)
> and found the practice lacking.
>
> http://tinyurl.com/kz5c48h
>
> They've even produced a video . . .
>
> http://tinyurl.com/kmdfygt
>
> "When there is no margin for error" says the narrator,
> this product is the right choice. What is not said
> is that the use of the right crimp tool produces a
> gas tight joint that does not improve with the addition
> of solder.
I've been pondering this product and my first impressions . . . I didn't realize
how close I was to the truth when I suggested that the crimp was not expected
to achieve any degree of electrical integrity but simply a way to fixture the
two wires so that the solder-sleeve technology could 'do what it does best'.
A number of readers have commented on the utility of the legacy solder sleeves
for joining two wires . . .
http://tinyurl.com/nvu5zub
It takes three or four hands to hold all the pieces in alignment while heat is
applied to make up the joint.
I even acknowledge this 'short coming' in the article on Poor Man's Solder Sleeves
. . .
http://tinyurl.com/dgg2nb
. . . where I suggest that the wires be fixtured by wrapping a strand or two of
wire around the lap-joint to hold alignment while soldering takes place.
I also recalled an evaluation I made on some low cost, butt splices with heat-shrink
covers. REALLY inexpensive in boxes of 100 at Lowes, Menard's, et. als.
I dug some of those samples out for a second look and recalled that it was nearly
impossible to craft a crimp that would offer a decent pull-test. I.e. no
gas-tight joint was being created. The plastic heat-shrink was so soft that it
was impossible to put sufficient crimp-forces on the splice without making a
mess of the heat-shrink overlay.
So, getting back to the Dell ad for crimp-solder sleeves . . . this now appears
to be an elegant solution to the difficulties cited earlier. When you add solder
on top of the crimped joint, gas-tight electrical integrity is achieved.
Aggressive crimp forces are not necessary, the crimp is only there to fixture the
wires in place to await solder.
The lighter crimp forces don't trash the sleeve so that the finished joint stays
pretty.
If anyone elects to try these, let us know what your impressions are. I note that
the small red butt splice is rated down to 20AWG . . . I did notice that similar
products did not shrink down tight enough to offer insulation support or
hermetic sealing of a joint on 22AWG Tefzel.
Bottom line is that these things may be a better product than first blush and past
experiments suggested . . .
Bob . . .
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=415315#415315
Message 2
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| Subject: | Re: kitfox /rotax 912 wiring diagram (variation |
on Z-16)
Getting back to your particular study of options,
it would be well to set some design goals. What
battery only endurance would you like to strive for?
[.] my e-bus
operations would shoot for 3-4 hours as a design
goal. Your's may be less.
Four hours sounds like a good number. Missions will be Day VFR only; some
mountainous terrain and open waters.
My plan-b flight bag hardware consists of GPS
receivers (two actually . . . I use them full time),
hand-held transceiver with vor/loc capabilities,
and a flashlight.
I have an iPad which has aeronautical charts. It will be connected to the
USB charger to keep it charged when the alternator is working and will serve
as a backup GPS if the alternator stops working. My hand-held doesn't
have VOR/LOC capabilities, maybe I'll pick one of those up next time I'm in
the US (its' cheaper there).
Something you can do in your airplane
that I didn't get with a TC rental is connection
for your hand-held to the external antenna.
That's definitely something I'm interested in; is there a good way to do it
without installing a separate antenna?
What passes for a "b-lead" on the PM/R-R
system is that wire that runs from OUTPUT
terminal of the R-R, through the control
relay and to the system. Since it ties
directly to a battery-fed, fat-wire it's
a good idea to protect it at some level
well above the output capability of the
alternator. 30A fuse is a good choice.
OK, I'll do that.
I incorporated them following the suggestions on the Infinity Grip order
form ( http://www.infinityaerospace.com/gripwire.pdf
<http://www.infinityaerospace.com/gripwire.pdf> ) and against the better
judgment of my expert friend who helped me with the wiring. I thought it
might be a good idea to have them handy in case of an engine failure in
order to attempt a restart. But in hindsight, it was maybe not such a great
idea. There is also the potential, any time the master is on on the ground,
to accidentally hit the starter button and swing the prop.
The more I think about it, the more I
dislike putting all those functions on
the stick. Non-standard "conveniences" can
translate into un-intended consequences.
Further, the likelihood that a start-button on
the stick will ever be critical to saving
the day is exceedingly low if not zero.
If the engine quits at altitude, you've
got plenty of time to manage the situation
with the legacy suite of controls. If you're
so low that mere seconds count, then fiddling
with the engine is a distraction from the
prime directive of the day . . . endeavor
to walk away.
Yup, makes sense.
In a TC aircraft you will find some combination
of following buttons on the wheel or stick.
Trim: UP, DN, LT, RT
Push to Transmit
Push to Intercom
and MAYBE . . .
Master Disconnect that removes power to all motors
that drive flight surfaces.
Inadvertent operation of any of theses switches
does not create a hazard to sheet metal or
bones . . . nor do they depart from legacy
cockpit behaviors that are the stock and trade
of most pilots.
We still need a list of electro-whizzies in
your airplane that use power . . . and
partitioning of scenarios for when they are
expected to be in service.
I've revised my Load Analysis (see attached excel/pdf), and it indicates
that with a 24Ah Batt at 70% capacity, I should get 4 hours electrical
endurance.
Sacha
Message 3
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| Subject: | Strange days in South Africa |
This is indeed off the list subject, but I thought that I would share with
you a little bit of what has been a momentous day in South Africa, and for
some indeed, in the world. Today over 100 of the worlds government leaders
were not 20km from my house and we all, throughout the nation, and on
African soil, paid tribute to "one of the greatest lights of our time"-
Madiba, one of the very few African leaders who commands my respect and
admiration. He was indeed a great man and his dying has reminded us of how
much we owe him, and how close we came to the brink of anarchy in this
country.
Besides today being a proud citizen of an infant democracy, and part of a
nation that has inspired the world, I got to within 30 metres of President
Barack Obama, another man I respect and admire. Admittedly, he was
travelling on the opposite side of the highway and we were both going fast.
I saw the cavalcade coming down the highway after Mandela's memorial service
and realised that it was Obama when I saw the long limo and the US flags. I
thought that he gave a really good speech (as did many South Africans) where
he did not shirk from saying hard things, but also said them in a way that
should have humbled the people they were directed at.
And I loved it that the crowd (being a very demographically representative
crowd for SA) booed our corrupt, criminal moron of a president- in front of
the world. We may make it after all..
Well, its been quite a day here and I bid thee adieu from a quietly settling
continent, world citizens.
Good speed Tata Madiba..
Johannesburg Jay
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
HH Enterprises
* Aircraft assembly, repair, wiring and avionics
* Flight instruction
* General and Electrical Engineering services
(NHD Elec Eng, BTech Elec Eng, GDE ELec Eng)
* Great dinner parties and conversation
* General adventuring, climbing, kayaking and living
Blog: <http://www.rawhyde.wordpress.com/> www.rawhyde.wordpress.com
Cel: 083 300 8675
Email: <mailto:jay@horriblehyde.com> jay@horriblehyde.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Message 4
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| Subject: | Re: Strange days in South Africa |
Thanks much for sharing that.
Madiba was indeed "one of the greatest lights of our time".
The memory of Nelson Mandela and the reaction to his death is complex
and mixed in the US. Some of us celebrate his life and achievement
without reservation. Others, not so much. I'd guess that reactions in
South Africa are even more complicated.
But I think all Americans might agree with you that booing one's
President from time to time is a good sign.
Thanks again.
Bill Watson
(do not archive)
On 12/10/2013 2:41 PM, Jay Hyde wrote:
>
> This is indeed off the list subject, but I thought that I would share
> with you a little bit of what has been a momentous day in South
> Africa, and for some indeed, in the world. Today over 100 of the
> worlds government leaders were not 20km from my house and we all,
> throughout the nation, and on African soil, paid tribute to "one of
> the greatest lights of our time"- Madiba, one of the very few African
> leaders who commands my respect and admiration. He was indeed a great
> man and his dying has reminded us of how much we owe him, and how
> close we came to the brink of anarchy in this country.
>
> Besides today being a proud citizen of an infant democracy, and part
> of a nation that has inspired the world, I got to within 30 metres of
> President Barack Obama, another man I respect and admire. Admittedly,
> he was travelling on the opposite side of the highway and we were both
> going fast. I saw the cavalcade coming down the highway after
> Mandela's memorial service and realised that it was Obama when I saw
> the long limo and the US flags. I thought that he gave a really good
> speech (as did many South Africans) where he did not shirk from saying
> hard things, but also said them in a way that should have humbled the
> people they were directed at.
>
> And I loved it that the crowd (being a very demographically
> representative crowd for SA) booed our corrupt, criminal moron of a
> president- in front of the world. We may make it after all..
>
> Well, its been quite a day here and I bid thee adieu from a quietly
> settling continent, world citizens.
>
> Good speed Tata Madiba..
>
> Johannesburg Jay
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> *HH Enterprises ***
>
> * Aircraft assembly, repair, wiring and avionics
> * Flight instruction
> * General and Electrical Engineering services
>
> (NHD Elec Eng, BTech Elec Eng, GDE ELec Eng)
>
> * Great dinner parties and conversation
> * General adventuring, climbing, kayaking and living
>
> Blog: www.rawhyde.wordpress.com <http://www.rawhyde.wordpress.com/>
>
> Cel: 083 300 8675
>
> Email: jay@horriblehyde.com <mailto:jay@horriblehyde.com>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> *
>
> *
>
> No virus found in this message.
> Checked by AVG - www.avg.com <http://www.avg.com>
>
Message 5
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| Subject: | Re: Strange days in South Africa |
On 12/10/2013 1:41 PM, Jay Hyde wrote:
>
> This is indeed off the list subject, but I thought that I would share
> with you a little bit of what has been a momentous day in South
> Africa, and for some indeed, in the world. Today over 100 of the
> worlds government leaders were not 20km from my house and we all,
> throughout the nation, and on African soil, paid tribute to "one of
> the greatest lights of our time"- Madiba, one of the very few African
> leaders who commands my respect and admiration. He was indeed a great
> man and his dying has reminded us of how much we owe him, and how
> close we came to the brink of anarchy in this country.
>
> Besides today being a proud citizen of an infant democracy, and part
> of a nation that has inspired the world, I got to within 30 metres of
> President Barack Obama, another man I respect and admire. Admittedly,
> he was travelling on the opposite side of the highway and we were both
> going fast. I saw the cavalcade coming down the highway after
> Mandela's memorial service and realised that it was Obama when I saw
> the long limo and the US flags. I thought that he gave a really good
> speech (as did many South Africans) where he did not shirk from saying
> hard things, but also said them in a way that should have humbled the
> people they were directed at.
>
> And I loved it that the crowd (being a very demographically
> representative crowd for SA) booed our corrupt, criminal moron of a
> president- in front of the world. We may make it after all..
>
> Well, its been quite a day here and I bid thee adieu from a quietly
> settling continent, world citizens.
>
> Good speed Tata Madiba..
>
> Johannesburg Jay
>
Thanks, Jay. It's always unfortunate when the good pass from us, but
perhaps today's events will inspire all of us to move forward together,
instead of pushing against one another. After all, most of us have the
same goals for ourselves and our families; we just need to find ways to
get there that we can agree on.
Charlie
(thankful that Matt allows *all* types of discussion on his lists, as
long as they are civil)
Message 6
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| Subject: | Re: Strange days in South Africa |
President Barack Obama, another man I respect and admire. Admittedly,
he was travelling on the opposite side of the highway and we were both
going fast. I saw the cavalcade coming down the highway after Mandela's
memorial service and realised that it was Obama when I saw the long limo
and the US flags. I thought that he gave a really good speech (as did
many South Africans) where he did not shirk from saying hard things, but
also said them in a way that should have humbled the people they were
directed at.
I do have to say that I hope that the democracy in South Africa
survives and prospers.
I , however strongly disagree with you on your perception of Barack
Obama! The speech he gave at the Mandela Memorial was all about Obama
not Mandela, as it should have been. Unless our Congress stops him he
will have destroyed our great and wonderful country by the end of his
second term in office.
You had your say, I countered it, now lets get back to airplane
electrics.
Roger
DO NOT ARCHIVE
Message 7
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| Subject: | Re: Strange days in South Africa |
Most of us, I suspect, have more or less strong opinions on these subjects.
I suggest we leave them (including mine), and the discussion, for another list
or the circle of friends.
Rumen
---- Roger & Jean <mrspudandcompany@verizon.net> wrote:
============
President Barack Obama, another man I respect and admire. Admittedly, he was
travelling on the opposite side of the highway and we were both going fast. I
saw the cavalcade coming down the highway after Mandela's memorial service and
realised that it was Obama when I saw the long limo and the US flags. I thought
that he gave a really good speech (as did many South Africans) where he did
not shirk from saying hard things, but also said them in a way that should
have humbled the people they were directed at.
I do have to say that I hope that the democracy in South Africa survives and
prospers.
I , however strongly disagree with you on your perception of Barack Obama!
The speech he gave at the Mandela Memorial was all about Obama not Mandela, as
it should have been. Unless our Congress stops him he will have destroyed our
great and wonderful country by the end of his second term in office.
You had your say, I countered it, now lets get back to airplane electrics.
Roger
DO NOT ARCHIVE
Message 8
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| Subject: | Re: Strange days in South Africa |
Well put Roger=0A=0A=0A-=0AJames Robinson=0AGlasair lll N79R=0ASpanish F
ork UT U77=0A=0A=0A=0AOn Tuesday, December 10, 2013 5:11 PM, Roger & Jean
<mrspudandcompany@verizon.net> wrote:=0A =0A =0A-President =0ABarack Obam
a, another man I respect and admire. -Admittedly, he was =0Atravelling on
the opposite side of the highway and we were both going =0Afast.- I saw
the cavalcade coming down the highway after Mandela's memorial =0Aservice a
nd realised that it was Obama when I saw the long limo and the US =0Aflags.
- I thought that he gave a really good speech (as did many South =0AAfric
ans) where he did not shirk from saying hard things, but also said them in
=0Aa way that should have humbled the people they were directed =0Aat.=0A
-=0A>>I do have to say that I hope that the democracy in South Africa su
rvives and prospers.=0A>>-=0A>>I , however strongly disagree with you on
your perception of Barack Obama!- The speech he gave at the Mandela Mem
orial was all about Obama not Mandela, as it should have been. Unless our
Congress stops him he will have destroyed our great and wonderful country
by the end of his second term in office.=0A>>-=0A>>You had your say, I c
ountered it, now lets get back to airplane electrics.=0A>>-=0A>>Roger=0A>
==
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