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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Probably milliseconds would be fine.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>What do I have to protect?....My
home. A fire from a shorted wire I can’t see or notice right away when
current is sinking to the chassis is my worry. The insulation catches
fire and spreads and a fun hobby turns into disaster.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Simulated or not, it’s good practice
to use protection in any chassis circuitry. Small shorts, can cause big
problems…just ask the astronauts of Apollo 1 (of course, you’ll
need a Ouija board </span></font><font size=2 color=navy face=Wingdings><span
style='font-size:10.0pt;font-family:Wingdings;color:navy'>J</span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>) I’m more concerned with big shorts.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jay<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Show me a man who cannot
be bothered to do the little things, and I will show you a man who cannot be
trusted to do the big ones.</span></font></i></em><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>--<st1:City w:st="on">Lawrence</st1:City>
<st1:City w:st="on">Bell</st1:City>, Founder <st1:City w:st="on"><st1:place
w:st="on">Bell</st1:place></st1:City> Hellicopter</span></font></i></em><o:p></o:p></p>
</div>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
simpits-tech-bounces@simpits.org [mailto:simpits-tech-bounces@simpits.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Cris Harrison<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, December 02, 2008
12:08 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Simulator
Cockpit tech list</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [simpits-tech]
Circuit Breakers</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Jay --<br>
you realy have to define fast.. is it seconds, milliseconds,
microseconds, or nanoseconds....<br>
lets start with the fastest..<br>
nanoseconds TTL (gates switch at 2-5 ns. (realy fast) <br>
microseconds instruction time of a microprocessor.<br>
milliseconds times fuses and circuit breakers pop (it has to heat up)<br>
seconds oh i wish i had a 11 second 1/4mile car :)<br>
so<br>
in old semiconductor amps the joke was the finals blow faster than the fuses!!<br>
last thought..<br>
most of what you have in the cockpit is SIMULATED! ie what do you have to
protect?<br>
In my cockpit i have control heads which have micros in them and my whole
project is running on <br>
message passing via Ethernet <br>
please read more about my projects:<br>
<a href="http://www.phoenixcomm.net/~phnx2000/sim">www.phoenixcomm.net/~phnx2000/sim</a><br>
<a href="http://www.phoenixaerospace.us">www.phoenixaerospace.us</a><br>
<br>
Cris Harrison<br>
A simulated crash is the ONLY crash you can walk away from...<br>
<br>
<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Mon, Nov 3, 2008 at 12:49 PM, <st1:PersonName w:st="on">Joseph
Fagner</st1:PersonName> <<a href="mailto:crease-guard@sbcglobal.net">crease-guard@sbcglobal.net</a>>
wrote:<o:p></o:p></span></font></p>
<div link=blue vlink=blue>
<div>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Don't really want to blow them remotely, although that a
pretty slick idea with the SCR, I just wanted to use them as a functioning
circuit breaker to protect electronics and what not.</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>You say they are fast but I have read that they are slow blow
type breakers, which is it?</span></font><o:p></o:p></p>
<div>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Jay</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<div>
<p><i><font size=2 color=navy face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:navy;font-style:italic'>Show me a man who cannot be
bothered to do the little things, and I will show you a man who cannot be
trusted to do the big ones.</span></font></i><o:p></o:p></p>
<p><i><font size=2 color=navy face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:navy;font-style:italic'>--<st1:City w:st="on">Lawrence</st1:City>
<st1:City w:st="on">Bell</st1:City>, Founder <st1:City w:st="on"><st1:place
w:st="on">Bell</st1:place></st1:City> Hellicopter</span></font></i><o:p></o:p></p>
</div>
</div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p><b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'> <a
href="mailto:simpits-tech-bounces@simpits.org" target="_blank">simpits-tech-bounces@simpits.org</a>
[mailto:<a href="mailto:simpits-tech-bounces@simpits.org" target="_blank">simpits-tech-bounces@simpits.org</a>]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Cris Harrison<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, November 03, 2008
10:27 AM<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Simulator
Cockpit tech list</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [simpits-tech]
Circuit Breakers<o:p></o:p></span></font></p>
</div>
</div>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p style='margin-bottom:12.0pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>RE: Joseph Fanger<o:p></o:p></span></font></p>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
joe you can use real CB's but and them blow them remotely with a SCR (see <a
href="http://simptis.wetpaint.com" target="_blank">simptis.wetpaint.com</a>),
the CB carrys the load or drive relays<br>
(bah), and dont worry about spikes ALL electro mechanical devices spike but
true aircraft brakers are very fast much faster than your <br>
house and, i figure if it good enjouh for the AF etc then its good enjough for
me..... <br>
Cris Harrison<br>
<a href="http://www.phoenixcomm.net/%7Ephnx2000/sim" target="_blank">www.phoenixcomm.net/~phnx2000/sim</a><br>
<a href="http://www.phoenixaerospace.us" target="_blank">www.phoenixaerospace.us</a><o:p></o:p></span></font></p>
</div>
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<div>
<div>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>On Sun,
Nov 2, 2008 at 11:09 PM, <st1:PersonName w:st="on">Joseph Fagner</st1:PersonName>
<<a href="mailto:crease-guard@sbcglobal.net" target="_blank">crease-guard@sbcglobal.net</a>>
wrote:<o:p></o:p></span></font></p>
<div link=blue vlink=blue>
<div>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Believe it or not, I'm actually at a point now where I can
start running power to the sim. I seem to recall several years ago this
topic but don't recall the details. I have several aircraft type circuit
breakers (DC rated) I'd like to use for the DC voltages in the pit (I'll leave
the AC stuff to my house circuits). Does anyone know if these can safely
be used in this type of application? Some of you guys with Heavies pits,
I know ya'll use circuit breakers, what configurations are folks using, if any?</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Thanks</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Jay</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<div>
<p><i><font size=2 color=navy face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:navy;font-style:italic'>Show me a man who cannot be
bothered to do the little things, and I will show you a man who cannot be
trusted to do the big ones.</span></font></i><o:p></o:p></p>
<p><i><font size=2 color=navy face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:navy;font-style:italic'>--<st1:City w:st="on">Lawrence</st1:City>
<st1:City w:st="on">Bell</st1:City>, Founder <st1:City w:st="on"><st1:place
w:st="on">Bell</st1:place></st1:City> Hellicopter</span></font></i><o:p></o:p></p>
</div>
<p style='margin-bottom:12.0pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
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<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><br>
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