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<DIV>Correct, I still use separate regulators for each battery. This system is smart that isolates the bad battery if something goes wrong. In this way, the bad battery won't drain the good one. The LED in the receiver tells you if the battery has been isolated. </DIV>
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<DIV class=signature id=signature>--<BR>Vicente "Vince" Bortone</DIV>
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<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: "Jay Marshall" <lightfoot@sc.rr.com> <BR>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">As I read the literature, the dual battery setup is designed to provide a heavier buss for more current. It does not solve the problem of a failed battery(s). This could effectively add even more drain. The ideal setup still seems to be dual battery packs with dual regulators, or some other means to isolate a failed pack.</SPAN></FONT></P>
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<P><B><I><FONT face="Brush Script MT" color=navy size=4><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 13.5pt; COLOR: navy; FONT-STYLE: italic; FONT-FAMILY: 'Brush Script MT'">Jay </SPAN></FONT></I></B><B><I><FONT face="Brush Script MT" color=navy size=4><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 13.5pt; COLOR: navy; FONT-STYLE: italic; FONT-FAMILY: 'Brush Script MT'">Marshall</SPAN></FONT></I></B><FONT color=navy><SPAN style="COLOR: navy"> </SPAN></FONT></P></DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> </SPAN></FONT><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">nsrca-discussion-bounces@lists.nsrca.org</SPAN></FONT><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> [mailto:</SPAN></FONT><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">nsrca-discussion-bounces@lists.nsrca.org</SPAN></FONT><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>vicenterc@comcast.net<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, September 03, 2008 11:44 AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> </SPAN></FONT><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">General pattern d
iscuss
ion</SPAN></FONT><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion] Part 2-Its a miracle!!!</SPAN></FONT></P>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Gray,</SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Yes, high drain could have been the problem. Since the plane is in good condition probably you can check. I think you should consider using two batteries of your preference. I starting to use the 9100 receiver that already has two power inputs. Check details here:</SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><A href="http://www.horizonhobby.com/Products/Default.aspx?ProdID=SPMAR9100">http://www.horizonhobby.com/Products/Default.aspx?ProdID=SPMAR9100</A></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">--<BR>Vicente "Vince" Bortone</SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 0.5in; MARGIN-RIGHT: 0in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">-------------- Original message -------------- <BR>From: Gray E Fowler <gfowler@raytheon.com> <BR><BR></SPAN></FONT><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Vicente</SPAN></FONT> <BR><BR><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">The Robbe charger has a setting for soft peak, which is to be used for NiMH. This is what I had. I cycled twice before using this new battery..what I remember was getting about 1300 Mah from this 1450 mah pack. I think there may be a "high drain" problem on the plane in addition.</SPAN></FONT> <BR><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR><BR>Gray Fowler<BR>Senior Principal Chemical Engineer<BR>Radomes and Specialty Apertures<BR>Technical Staff Composites Engineer
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>Raytheon</SPAN></FONT> <BR><BR></P>
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<P class=MsoNormal><B><FONT face=sans-serif size=1><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">vicenterc@comcast.net</SPAN></FONT></B><FONT face=sans-serif size=1><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif"> </SPAN></FONT><BR><FONT face=sans-serif size=1><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Sent by: nsrca-discussion-bounces@lists.nsrca.org</SPAN></FONT> </P>
<P><FONT face=sans-serif size=1><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">09/03/2008 09:42 AM</SPAN></FONT> </P>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT face=sans-serif size=1><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Please respond to<BR>General pattern discussion <nsrca-discussion@lists.nsrca.org></SPAN></FONT></P></TD></TR></TBODY></TABLE>
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<P class=MsoNormal><FONT face=sans-serif size=1><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">General pattern discussion <nsrca-discussion@lists.nsrca.org></SPAN></FONT> </P></TD></TR>
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<P class=MsoNormal><FONT face=sans-serif size=1><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Re: [NSRCA-discussion] Part 2-Its a miracle!!!</SPAN></FONT></P></TD></TR></TBODY></TABLE>
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<P class=MsoNormal style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 0.5in; MARGIN-RIGHT: 0in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><BR><BR><BR>Gray, <BR> <BR>Yes, that is good news. Clearly the battery was the problem. I had heard that some chargers get a "false peak" and stop charging when the battery is not really fully charged. I wonder if this was the problem. <BR> <BR>--<BR>Vicente "Vince" Bortone <BR> <BR>-------------- Original message -------------- <BR>From: Gray E Fowler <gfowler@raytheon.com> <BR></SPAN></FONT><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>Lance and I went out and found the plane right where it was supposed to be. Do not know how I missed it the first day, so I am going to say that someone went into the woods Monday night and moved it .</SPAN></FONT> <BR><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>What
is amazing in the minimal damage the plane has considering it went straig ht in from 200 feet, albeit at a slow speed. The horrible reverbed cracking sound Keith and I heard was the carbon fiber wing tube breaking. Both wings have limited leading edge damage, the stab has a golfball size divot on the R LE, an easy to repair crack in the fuse (buckle failure) behind one wing and a little nose ring area damage. That is all.</SPAN></FONT> <BR><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>The battery pack had broken the 3/8 bals a stic ks on impact that were bonded into place (my battery packs are not "removeable" per say) and the battey pack was on the ground at the nose of the plane. The plane was standing vertical on the undamage spinner being held up by the tree branches. Once we got home we hooked eveything up and of course it all worked fine. Knowing that the battery pack essentially had the same charge as when the plane
went
in, Lance took the battery pack home for diagnostics. Using the Robbe charger he cycled the1450 mah &nbs p;pack down....it read 80 mah. He then charged it and it read 1000 mah. Anthony described a NiMH "brown out" and that is starting to make alot of sense. 6 volt packNiMH , drained does not just die like a 4.8 volt NiCad. Also an important note is I now think the plane was going in and out of PCM lock. When I tested PCM lock the throttle did cut, but not to low idle. It cut to about 20% throttle (programming error), hence the pulsing of the throttle that I exper ienced. If this diagnosis is correct then it is a testament to using PCM as I was able to fly the plane for 45 seconds before impact...had I been closer when the problem started I may have even been able to score a "10" FAI landing (not really-I would have gone for the grass instead of the runway).</SPAN></FONT> <BR><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><B
R>Anyw
ay I am sending the entire radio off for examination, try to see why the battery was so low, and fix the plane for spring.</SPAN></FONT> <BR><BR><FO size="2" e="sans-serif" fac NT>Thanks for the ideas <BR><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR></SPAN></FONT><BR><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR><BR><BR>Gray Fowler<BR>Senior Principal Chemical Engineer<BR>Radomes and Specialty Apertures<BR>Technical Staff Composites Engineering<BR>Raytheon</SPAN></FONT> <TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">_______________________________________________</SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><BR><TT><FONT face="Courier New">NSRCA-discussion mailing list</FONT></TT><BR><TT><FONT face="Courier New">NSRCA-discussion@lists.nsrca.org</FONT></TT><BR><TT><FONT face="Courier New">http://lists.nsrca.o
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