Xmitter springs

[tony at radiosouthrc.com]

Ed:

The springs tension is not the cause of any failures that I know of, either
with the Futaba heaver springs, or with the Radio South ones.

The failure is caused by the loop on the end of the spring not being quite
large enough.  What happens is if the loop is snug when installed on the
spring adjuster or on the 1/2 scissor arm, the plastic end will be under
tension when the stick is moved.  This will tend to bend the tip of the
plastic end slightly when the stick is moved.  Over time, this will cause
the tip to break off.

The cure is to make sure that the replacement spring loop is large enough to
allow movement when installed.  Just test fit the spring and make sure there
is some play when installed and you will not have any problems.

Hope this helps everyone!

Tony Stillman
Radio South
3702 N. Pace Blvd.
Pensacola, FL 32505
1-800-962-7802
www.radiosouthrc.com
----- Original Message ----- 
From: "Ed White" <edvwhite at yahoo.com>
To: <discussion at nsrca.org>
Sent: Thursday, June 03, 2004 7:30 AM
Subject: Re: Xmitter springs


> Question for anyone, perhaps mostly for Tony Stillman.
>  A few years ago I put the stronger springs in my Tx
> (8UA).  These were the stronger springs obtained
> direct from Futaba.  Are these the same springs that
> are causing failures?  Also, has anyone had failures
> with the original springs?
>
> Ed
>
>
> --- Wayne Galligan <wgalligan at goodsonacura.com> wrote:
> > OHH yesss.... just had that happen this last
> > weekend.  I lost the rudder spring during a stall
> > turn.  Then I had to land in 20 mph crosswind.  Very
> > touchy with no feeling on the stick.  Had the
> > aileron ones go out too about one month ago.   I
> > think it has more to do with the age of the unit. My
> > 8UA is about 8yrs old.  Plastic gets brittle with
> > age and especially if it is expose to UV(sunlight).
> > All thought these little parts are shielded from the
> > sun somewhat  I am sure there is still some exposure
> > when left to Mother Nature.
> > AND of course they seem to break at the most
> > inconvenient time...like 4 days before a contest.  I
> > guess that's better then during a good round in a
> > contest.
> >
> > Wayne G..
> >   ----- Original Message ----- 
> >   From: Lance Van Nostrand
> >   To: discussion at nsrca.org
> >   Sent: Wednesday, June 02, 2004 11:34 PM
> >   Subject: Re: Fire Extinguishers and Xmitter
> > springs
> >
> >
> >   A comment about those new springs:  I've now seen
> > 3 transmitters break the plastic hook that holds the
> > spring to the gimbal.  On gimbal broke twice!! first
> > time on the plastic hook and the second on the
> > gimbal side. Those plastic parts are nit designed
> > for the load of the heavy duty springs.  My
> > transmitter was one of these.  I now believe that
> > they are a nice idea but an impractical one.
> >   Be warned and be ready to land with no spring
> > center.
> >   --Lance
> >
>
>
>
>
>
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