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<DIV><FONT face=Arial size=2>Painted in the mold Impact, Bill. Figure
it'll be the lightest.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Rich</FONT></DIV>
<BLOCKQUOTE dir=ltr
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=ahrensw@charter.net href="mailto:ahrensw@charter.net">William
Ahrens</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, November 24, 2004 10:08
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Fw: Electrics and how
viable.?.. Matt klipped for reposting</DIV>
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<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Good info, What
airframe are you planning on using for your “E” setup.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">And yes, I love my 3D
Edge 540 foamy with AXI motor. I have been flying mine at our local
football field at night with lights on!</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Tahoma
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original
Message-----<BR><B><SPAN DEFANGED_STYLE="font-weight:bold">From:</SPAN></B> <A
href="mailto:discussion-request@nsrca.org">discussion-request@nsrca.org</A>
[mailto:discussion-request@nsrca.org] <B><SPAN style="FONT-WEIGHT: bold">On
Behalf Of </SPAN></B>Richard Strickland<BR><B><SPAN
DEFANGED_STYLE="font-weight:bold">Sent:</SPAN></B> Thursday, November 25, 2004
3:20 AM<BR><B><SPAN DEFANGED_STYLE="font-weight:bold">To:</SPAN></B>
NSRCA<BR><B><SPAN DEFANGED_STYLE="font-weight:bold">Subject:</SPAN></B> Fw:
Fw: Electrics and how viable.?.. Matt klipped for reposting</SPAN></FONT></P>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Another $ .02
(Observations so far......)</SPAN></FONT></P></DIV>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">For a while, 90% of
the focus will be on batteries. A comparison could be made between a
single fluid pump drawing from three different tanks simultaneously--you will
get a slight difference in the amount drawn from each due to friction losses,
tubing or pipe characteristics, length, gravity, etc. If you put
the same amount back in all three each time you refill--eventually you will
get an under/overfill situation. Same thing happens with the cells(I am
surmising). In a heavy charge/discharge cycle, this is
dangerous. That's why cell balancing is so important as they tend to get
out of balance over time. This can be alleviated by individual cell
balancing every so often--if the pack is built to do so. Kind of a large
problem to my way of thinking as there are MANY packs out there that do not
have that capability....and no one is really talking about it. Probably huge
liability issues there.</SPAN></FONT></P></DIV>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The good news is
several manufacturers are working on individual cell balancing chargers with
multi-plugs that will do it all as they are charging at maximum rates.(Then
only one required.) One manufacturer thinks he'll have a 20c discharge
rate cell that will allow smaller, lighter packs with possibly
higher charging rates. We'll see. Another has gotten over 700 cycles out
of the pack and apparently still over the arbitrary 85% cap. threshold(or
so I have read).</SPAN></FONT></P></DIV>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Several folks are
working on new motors--direct and geared along with some large programmable
controllers. Apparently, most of the problems have been centered on too much
draw (too much prop) that screws up the motor magnets--causes The
motor to draw more than the controller is rated for and blows the
controller if it hadn't already been blown. Evidently if you use the
stuff as rated--the systems are fairly reliable.</SPAN></FONT></P></DIV>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Since I decided some
time ago to take the jump--I have built several small park and indoor
airplanes. It's pretty nice to run down to the park at halftime and get
in a couple flights and only miss a few minutes of the second half. The
power is there and can be controlled well. It DOES feel a little like
cheating! The manufacturers are working on ways to get the weight AND
the danger out of the batteries.</SPAN></FONT></P></DIV>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The evidence supports
that IF the systems are operated within capacities and balanced properly they
will last FAR longer than 100 cycles. I suspect that once you do it by the
numbers--it'll be like one of those sweet engines that you set at the
beginning of the season and didn't have to touch the
rest.</SPAN></FONT></P></DIV>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I am holding off
until the last minute to buy power systems as they seem to be changing almost
by the day. I did go ahead and order the first airplane for it, though.
BTW--get one of the indoor 3D jobs and find the local indoor
club--keeping it between the basketball goals will keep the fingers and depth
perception nimble.</SPAN></FONT></P></DIV>
<DIV>
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face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal DEFANGED_STYLE="margin-left:.5in"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Richard
S.</SPAN></FONT></P></DIV></DIV></BLOCKQUOTE></BODY></HTML>