Interchange Airtonics/JR servo arms
ronlock at comcast.net
ronlock at comcast.net
Tue Jul 12 06:43:21 AKDT 2005
Ive forgotten the colors, but the "older" Dubro heavy duty
arms would bolt on Airtronics and with screw snug, all seemed
fine. But I found a slight trim change in air that would not
go away- Very close inspection with screw loose and a
touch of slop could be detected. I tossed all of those,
have not tried the "newer" Dubros.
Ron Lockhart
-------------- Original message --------------
> Dubro is now making their high strength arms
> spefically for Airtronics. As I recall they are grey
> in color instead of tan. I bought a batch for use on
> the upcoming Temptation and they fit snugly on the
> Airtronics output shaft. The older "JR/Airtronics"
> horns would slip slightly, I use a piece of a plastic
> bag in between the horn and shaft to tighten them up.
>
> --- "Atwood, Mark" wrote:
>
> > I've found the Nylon arms to be pretty
> > interchangeable between JR and
> > Atx... But with the aluminum arms Bob is
> > correct...the "fit" is
> > slightly off and there is some slop. Unfortunately,
> > most of the
> > aluminum 3rd party arms are made for JR and then
> > marketed as JR/Atx
> > compatible...which they're not really.
> >
> >
> >
> > -M
> >
> >
> >
> > ________________________________
> >
> > From: discussion-request at nsrca.org
> > [mailto:discussion-request at nsrca.org]
> > On Behalf Of ronlock at comcast.net
> > Sent: Tuesday, July 12, 2005 8:35 AM
> > To: discussion at nsrca.org; discussion at nsrca.org
> > Cc: Bob Pastorello
> > Subject: Re: Interchange Airtonics/JR servo arms
> >
> >
> >
> > Ive found it is a mixed bag. Almost all will bolt
> > on, and some
> >
> > Airtronics/JR servo and arm combinations fit
> > properly. Depending on
> >
> > particular model of servo and brand of arm, you may
> > find a very slight
> >
> > bit of slop. It may show up as a slight trim change
> > that that won't go
> > away.
> >
> >
> >
> > Later, Ron Lockhart
> >
> > -------------- Original message --------------
> >
> > > Thanks, Ed. Didn't know it was one of those
> > "close, but no
> > cigar"
> > > things.... I had been forced to use an Airtronics
> > arm in the
> > distant past
> > > once on my JR servo.... glad to have better info!
> >
> > >
> > > Bob Pastorello
> > > www.rcaerobats.net
> > > rcaerobob at cox.net
> > > ----- Original Message -----
> > > From: "Ed Alt"
> > > To:
> > > Sent: Monday, July 11, 2005 8:31 PM
> > > Subject: [SPAM] Re: [SPAM] Re: servo horns
> > >
> > >
> > > > Bob:
> > > > The number of teeth are the same, however you
> > will get a
> > sloppy fit when
> > > > you interchange them. Try a machined, snug
> > fitting aluminum
> > arm meant for
> > > > a JR servo on an Airtronics and you will see
> > what I mean.
> > You can make it
> > > > work, but the tolerances are not the same.
> > > >
> > > > Ed
> > > > ----- Original Message -----
> > > > From: "Bob Pastorello"
> > > > To:
> > > > Sent: Monday, July 11, 2005 9:22 PM
> > > > Subject: Re: [SPAM] Re: servo horns
> > > >
> > > >
> > > >> JR fits Airtronics/vice versa.
> > > >>
> > > >> Bob Pastorello
> > > >> www.rcaerobats.net
> > > >> rcaerobob at cox.net
> > > >> ----- Original Message -----
> > > >> From: "Ed Alt"
> > > >> To:
> > > >> Sent: Monday, July 11, 2005 8:15 PM
> > > >> Subject: [SPAM] Re: servo horns
> > > >>
> > > >>
> > > >>> Bill:
> > > >>> No, JR is different from Futaba. As far as I
> > know, every
> > single major
> > > >>> servo manufacturer has their own unique
> > spline design.
> > > >>> Ed
> > > >>>
> > > >>> ----- Original Message -----
> > > >>> From: "Bill Pritchett"
> > > >>> To:
> > > >>> Sent: Monday, July 11, 2005 8:56 PM
> > > >>> Subject: servo horns
> > > >>>
> > > >>>
> > > >>>> All:
> > > >>>> Will Futaba horns fit ok on JR servos?
> > > >>>> Thanks
> > > >>>> Bill
> > > >>>>
> > > >>>>
> > > >>>> Bill Pritchett
> > > >>>> 765-744-9322
> > > >>>>
> > > >>>>
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> === message truncated ===
>
>
> Bob Kane
> getterflash at yahoo.com
>
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