[NSRCA-discussion] Futaba BLS173SV centering problem

[Peter Vogel]

105 oz-in does seem a little low, depends on the chord+length of the
aileron and what you expect your max deflection to be...  I usually err on
the side of the plane going faster than I think at 100mph.

http://www.mnbigbirds.com/Servo%20Torque%20Caculator.htm

For the most part I'm very surprised by how little torque is needed, but in
this case 105 oz-in falls right between my optimistic and pessimistic
calculations for a 2M plane.  If it's a smaller than 2M plane it should be
plenty...

Peter+



On Mon, Feb 13, 2017 at 11:20 AM, Don Ramsey via NSRCA-discussion <
nsrca-discussion at lists.nsrca.org> wrote:

> I would reduce the deadband and see if that helps.  I run about 20.  Are
> these servos OK for the ailerons.  Enough power?
>
>
>
> Don
>
>
>
> *From:* NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org]
> *On Behalf Of *Daniel Underkofler via NSRCA-discussion
> *Sent:* Monday, February 13, 2017 11:59 AM
> *To:* NSRCA
> *Subject:* [NSRCA-discussion] Futaba BLS173SV centering problem
>
>
>
> Guys,
>
> I'm new to Futaba programable servos.  Have new BLS173SV on ailerons and
> have a bit of "slop" in the servo output.  I'm confident that the majority
> of the slop is in the servo, not the linkage.
>
>
>
> Should I need to replace gears after only a couple hundred flights?  Hard
> to tell, but seems like there is too much slop with power off, so adjusting
> settings may not be the answer.  Can't find the gearset on Futaba or Tower
> website anyway.  Anybody know the part number and how/where to order?
>
>
>
> I was going to try reducing the deadband from .36 to .20.
>
> Recommendations on programable parameter settings improve centering?
>
>
>
> Thanks,  Dan
>
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> NSRCA-discussion at lists.nsrca.org
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>



-- 
Director, Fixed Wing Flight Training
Santa Clara County Model Aircraft Skypark
Associate Vice President, Academy of Model Aeronautics District X
Treasurer, National Society of Radio Control Aerobatics (NSRCA)
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