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Ryan,<br>
<br>
Sound like a good case for a Decision Matrix, send me an e-mail and I
will send a program that will analyze your choices with any variables
and whatever weights you want to assign to those variables.<br>
<br>
Ray Morton<br>
<a class="moz-txt-link-abbreviated" href="mailto:jrmmorton@earthlink.net">jrmmorton@earthlink.net</a><br>
<br>
Ryan Wiesehan wrote:<br>
<blockquote type="cite" cite="mid000001c40ecb$f5bbc4d0$650aa8c0@wiez">
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<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">Hello,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">I tried to research this
on my own without rehashing servo
talk on the list, but I couldn’t find an answer that satisfied my
curiosity.<span style=""> </span>I will outline my
research first so that you may better help me out.<span style=""> </span>I
want to put new servos in my Used
Summit III, it has 148’s in it now and I think it flies great, no
problem
with torque, and there isn’t a centering problem between days and
flights.<span style=""> </span>But, I am always hearing
that better servos will make you fly better.<span style=""> </span>And
I want to be a better flier.<span style=""> </span>So, I have spent
the last three weeks
researching servos.<span style=""> </span>This research
must be one of those instances when you are confused because you are
paying
attention.<span style=""> </span>I want is spend less
than $180, $25 - $40 per servo and 40oz ok ailerons, 60oz rudder and
elevator.<span style=""> </span>Here is how it breaks
down in my mind from the research.<span style=""> </span><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">1. <span style="">
</span>The
four basic qualifying specs for servos:<span style="">
</span>speed, torque, weight and price.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">2.<span style=""> </span><span
style=""> </span>Then you
have motor type and non-digital vs. digital.<o:p></o:p></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in; text-indent: -0.5in;"><font
size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">3.<span style="">
</span>Lastly,
you have brand, and I’ve tried JR, Futaba, Hitec, TowerHobbies and
Expert.<span style=""> </span><o:p></o:p></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in; text-indent: -0.5in;"><font
size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="margin-left: 0.5in; text-indent: -0.5in;"><font
size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">I am most
interested in hearing your opinions about #’s 1 and 2; I don’t
really care to debate brand in this thread<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">3-pole non-digitals; can
have problems centering due to the
splits in the armature.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">5-pole non-digitals;
don’t know there isn’t
really much information.<span style=""> </span>Would
someone help?) I assume they have better centering and maybe more power
than a
3-pole, I am thinking these might work for me so please try and sell me
on the
coreless. <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">Coreless non-digital; has
a different armature system
without poles that allows for better centering and a lighter core.<span
style=""> </span>Most of the low end coreless seem like
they are slower than a 3-pole.<span style=""> </span>I am
starting to thing that the standard specs for speed are misleading. If
the
coreless motor is lighter and accelerates more quickly than a 3-pole
why does a
$30 coreless post the same specs as $9 el cheapo?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">Now, here is where I
really get confused, change all of the
above to digitals.<span style=""> </span>If the circuit
board is always sending centering and position location at 3 times the
rate
previously to a 3-pole motor, why wouldn’t I want to buy it?<span
style=""> </span>It should center fine because with a
digital servo centering is powered. <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">Wow, sorry, that was a
long email.<span style=""> </span>I guess all that I am asking is for
someone to explain why money spent on servos is valid.<span style=""> </span>Because,
I just took out my plane last
weekend after all this research and I couldn’t figure out how it could
be
better. <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">Thanks,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><st1:PersonName><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">Ryan Wiesehan</span></font></st1:PersonName><font
size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">FreightQuote.com<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;">New Business Sales <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
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</blockquote>
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