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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'>I’m now flying Futaba’s 9254
heli servo on the elevator of my Mantis. This is the same setup CPLR used
in <st1:country-region w:st="on"><st1:place w:st="on">France</st1:place></st1:country-region>.
Wow is it responsive. It’s only 50oz torque roughly, but I have flown
both new FAI sequences as well as Masters, and even tried to push it to see if
it would have a problem, and I’ve yet to experience any problems. The
speed is great at .06. I would say the 3151’s would be adequate on
aileron and elevator. You might want a little more on rudder, but they
would work, you just wont have quite as effective a rudder. You might try
a 3152 on the rudder and use the other 3151 for throttle. <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'>Arch Stafford<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>
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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'>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Ron Van Putte<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, March 09, 2006
1:15 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">NSRCA
Mailing List</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
4.8 volt Vs 6.0 volt</span></font><o:p></o:p></p>
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<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><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Mar 9, 2006, at 10:28 AM, Bill Markovitz wrote:<o:p></o:p></span></font></p>
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<br>
<o:p></o:p></span></font></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>Hi all..........I purchased a Quest
and a Futaba 9CAF</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>at the WRAM show.<span
class=apple-converted-space> </span>The 9CAF comes with 3151 digital</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>servos rated at 4.3 oz/in.<span
class=apple-converted-space> </span>I would like to use these</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>servos with the 90 size Quest for
competing in the</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>Intermediate class and won't be using
it for 3D</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>flying.<span
class=apple-converted-space> </span>Are these servos adequate for this</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>application?<span
class=apple-converted-space> </span>If not, would going to 6 volts give me</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>the additonal torque that I need?<span
class=apple-converted-space> </span>How much more</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>torque would going to 6 volts give
me?<span class=apple-converted-space> </span>Are there any</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>known problems using an on-board 6
volt power supply?<span class=apple-converted-space> </span></span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>The 9CAF manual states that driving
the servos with a</span></font><o:p></o:p></p>
<p style='margin:0in;margin-bottom:.0001pt'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>6 volt supply is an option.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>You will get a lot of responses to this, which will cover the gamut. <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>First, I believe you meant 43 in-oz torque. <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Second, for all but extreme aerobatics (like snap rolls) 43 in-oz
servos should be adequate. There will probably be responses that will say that
you need 80 - 100 in-oz torque servos.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Third, you may not be aware, but 30 years ago many of us were using
Kraft KPS-12 servos (smallest and lightest!) in .60 cu-in engine powered
airplanes weighing up to 8 pounds. The KPS-12 servo had a torque of 18 in-oz.
Think about that for a while.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Ron Van Putte<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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