[NSRCA-discussion] Futaba and pattern

[AtwoodDon at aol.com]

I would add the following to the list and expand on Jim's thoughts  
below......
Let us run 2 or 3 lipos as the airborne battery and let us pick the voltage  
we want to go into Battery Failsafe.  I would like a servo like the 9650  but 
with a tighter gear train.  Also, get rid of the feedback  pots like Jim 
mentions below.  Either go to a stepper motor approach or go  to an optical 
feedback instead of the mechanical wipers that wear out over  time and centering goes 
away.  I know that would impact the  repair/replacement revenue but give us 
something we can run until some  unfortunate collision with the ground.
 
My last wish if for Futaba to be more straight forward in their  
communications with customers as to what is actually going on.  The  delays in the 2.4G 
systems and modules is frustrating even tho I am willing  to wait for the 
'right' system.  Also, if there are issues with  a system, TELL US!!!  We pay a lot 
of money for these radio systems  and pattern planes and if those systems have 
a problem (like the long  antennas on the 5014), tell us the truth so we can 
choose what to do instead of  basically denying anything is wrong.  The lack 
of accurate and timely  information irritated me much more than the fact there 
were some  issues. 
 
Don
 
  In a message dated 12/20/2007 12:24:07 P.M. Pacific Standard  Time, 
joddino at socal.rr.com writes:

My first  thought won't make everyone happy because it will make a lot  
of  stuff obsolete but I think it is time to get rid of the analog  
pulse  width interface between the receiver and servos.  It is time for   
a high speed computer bus so more information could be transferred  at  
a higher rate.  The servo should use a brushless motor and  if possible  
a stepper motor that would eliminate the need for a  feedback pot.  In  
other words a true digital servo.  It  should run with a range of  
voltages (7.2 to 9.0 volts) with no  change in performance so no  
voltage regulators would be  required.  It should keep working, at a  
noticeably slower  rate,  from 7.2 down to 3.6 volts.  It should be   
programmable so servos could be matched exactly at all  positions.

Jim O







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