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<DIV><FONT face=Arial size=2>Nat,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am pretty sure the 9411sa comes with a metal
output shaft. I am basing this on the spec weights of the 9411 and
9411sa - they are the same. I can't tell you 100% because all my 9411s
started as 9411 and I retrofit them to 9411sa's long before the 9411sa was a
production item.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>In general, all of the JR servos have a metal
pinion gear on the motor, then 3 intermediate gears, and then the final
gear/ouput shaft. If you change the 3 intermediate gears from metal to
nylon, you will save about 0.01 to 0.03 ounces depending on the servo.
Changing the final gear/ouput shaft from metal to plastic will save around 0.10
to 0.15 ounces depending on the servo. As has been noted,
removing/installing the BB on the output gear is a real pain.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>FWIW - Within a couple months of JR introducing the
8417 and 8411 digital servos (both with metal gears) in 1999 (?), I had retrofit
nylon gears. I've done the same thing with 9411s and 3421s and have not
had a problem with gear breakage in any of the servos - thousands of flights in
pattern planes and various sport/funfly planes.</FONT></DIV><FONT face=Arial
size=2>
<DIV><BR>Regards,</DIV>
<DIV> </DIV>
<DIV>Dave Lockhart, Team JR</DIV>
<DIV><A href="mailto:DaveL322@comcast.net">DaveL322@comcast.net</A></DIV>
<DIV></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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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=natpenton@centurytel.net href="mailto:natpenton@centurytel.net">Nat
Penton</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, February 04, 2004 2:39
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Servos</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>I still dont know if the 9411SA comes with a
plastic output shaft. I do know that the metal output shaft has a plastic
"bushing" that is inserted (pushed with some difficulty) into the bottom
of the metal output gear and the bearing is installed on this
bushing.</FONT></DIV>
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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=Eric.Henderson@gartner.com
href="mailto:Eric.Henderson@gartner.com">Henderson,Eric</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, February 04, 2004
12:06 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Servos</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff size=2>I
remember that the reason you left the metal output shaft in place is
that you can't get the bearing out of the bottom of the gear. Does the 9411
SA version come with a plastic output shaft? It is not shown on the
Horizon site.</FONT></SPAN></DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2>Also, is Troy back on the list. I only see his posts if someone lese
replies to one and includes his notes.</FONT></SPAN></DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2>Eric.</FONT></SPAN></DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=361090318-04022004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]<B>On
Behalf Of </B>Nat Penton<BR><B>Sent:</B> Wednesday, February 04, 2004 12:45
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Re:
Servos<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>On one servo I replaced all but the motor gear
with the returned metal gears and ,like Troy says, it was somewhat difficult
replacing the servo arm gear and, Jerry, everything "feels" ok. The two
smaller intermediate gears had missing outer teeth. The other servo I
replaced all but the motor and servo arm gears with the returned metal gears
and , Jerry, it feels super . The inner gear on one of the intermediate
gears was missing a tooth or two. It seems to me this is the logical way to
go on future conversions and I believe this is what Troy said.</FONT></DIV>
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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=troy_newman@msn.com href="mailto:troy_newman@msn.com">Troy
Newman</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> Tuesday, February 03, 2004
10:09 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Servos</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Nat,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The conversion is to leave the metal output
gear in place. So the gear that the servo wheel attaches too is still
metal all other gears are nylon. And the standard servo comes with a Nylon
gear off the motor already and this gear is left in place.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have been running these servos converted
for 2+ years now and I have tons of flights on them...We are talking over
2000 flights on these servos converts....Lots of snaps and lots of
abuse.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have never had a gear strip in the
setup....Servo pots wear but not a gear go bad...I don't think you can
convert the output gear easily to nylon because of the way it is attached
to the pot and the bearing. I'm sure you can get the bearing off the shaft
on the output gear and then it might work out..I also will add a little
white grease like the servos use...Also in a pinch I have used
petroleum jelly too....Probably not the best choice but it
worked.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>My question is what gear(s)
stripped?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am very curious as I have had nothing but
superb luck with this setup. My opinion this is the absolute best aileron
servo setup I have ever used. They are fast strong and light just over
1.25oz each.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Let me know if I can help you
out.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>My email offline is </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><A
href="mailto:troy_newman@msn.com">troy_newman@msn.com</A></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Regards,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Troy</FONT></DIV>
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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=natpenton@centurytel.net
href="mailto:natpenton@centurytel.net">Nat Penton</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> Tuesday, February 03, 2004
8:28 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Servos</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>I had two DS9411's coverted to SA . A gear
, or gears, stripped in both with relatively no torque by hand. They
could have easily crashed an airplane. Does the stock SA have all
plastic gears, or only one or two ? These were converted to all
plastic.</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>