[NSRCA-discussion] Futaba Servos

[Woodward, Jim (US SSA)]

Dave,

In 2004 I ran a Lazulite and started with 9650's on ailerons.  The plane never really trimmed well.  I then moved to the 9150 (80'ish) ounces of torque.  The plane instantly flew better.  I then moved to the 9151, and this remained my aileron servo of choice for 5 years, only switching this year to the BLS451.  Brushless is clearly the direction the technology is going.  9650's are great servos and I've been using them a long time on elevators and throttle.  

Jerry and Tony helped me a lot at that time for sure.  Regarding speed and torque of servos (on airplanes), I will always take torque over speed.  By the time you use expos and reduced rates, short arms, long control rods, speed sort of falls out of the equation compared to torque (IMHO).
Thanks,
Jim



-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Dave Burton
Sent: Thursday, December 10, 2009 10:00 PM
To: 'General pattern discussion'
Subject: Re: [NSRCA-discussion] Futaba Servos

Thanks for the responses guys. I have a couple of JR 9411 SA for the
ailerons to swap out but was looking for something even lighter if they
would work. I need to get about 4-5 oz. Out of this bird.
Dave Burton

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of J Shu
Sent: Thursday, December 10, 2009 5:54 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Futaba Servos

I've flown the same design plane, one with 9650's and the other with 9151's,
and there was a difference. The one with the 51's was a 
much better (predictable) snapping plane. The 50's were speed sensitive
(downlines were never the same).

Andrew is right about the low profile Futaba's. I was running the BL-551,
1.6oz, 
(http://www.futaba-rc.com/servos/brushlessservos.html) in my Integrals and
now in my Valiant. The 9551, 1.6oz, 
(http://www.futaba-rc.com/servos/digitalservos.html) is the non-brushless
version (that Andrew was running in his Integrals). The JR 
9411 will also work fine, I just don't have experience with them.

Regards,
Jason
www.shulmanaviation.com
www.composite-arf.com

----- Original Message ----- 
From: "Dave" <DaveL322 at comcast.net>
To: "'General pattern discussion'" <nsrca-discussion at lists.nsrca.org>
Sent: Thursday, December 10, 2009 5:30 PM
Subject: Re: [NSRCA-discussion] Futaba Servos


> Dave,
>
> Quite a few guys are running the JR 9411 on ailerons on 2M stuff.  You'll
> save about 1.5 oz for the pair.
>
> Regards,
>
> Dave Lockhart, Team JR
>
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Dave Burton
> Sent: Thursday, December 10, 2009 5:07 PM
> To: 'General pattern discussion'
> Subject: [NSRCA-discussion] Futaba Servos
>
> I have a question about Futaba servos (I'm a JR user) from some Futaba
> flyers.
> Are the Futaba 9650 digital servos suitable for ailerons on an electric 2
> meter plane (Intrgral)? I'm looking to save a couple ounces over the full
> size JR 8411SA I'm using now.
> Thanks,
> Dave Burton
>
>
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