Digital Servos vs analog servos on Ailerons

[Keith Black]

Thanks for the tip Jerry, I'll give that a try.

Keith

----- Original Message ----- 
From: "Jerry Budd" <jbudd at QNET.COM>
To: <discussion at nsrca.org>
Sent: Friday, July 02, 2004 11:41 PM
Subject: Re: Digital Servos vs analog servos on Ailerons


> >Don,
> >
> >Interesting report.
> >
> >If you get a chance I suggest you try out the JR 9411SA's (nylon
> >gears), they are incredibly tight with absolutely no slop. I flew
> >the 9411 for about 200 flights and they developed quite a bit of
> >slop. I then switched to 9411SA and was amazed how tight they were,
> >much tighter than the 9411 brand new. It made a noticeable
> >difference in how steady the plane flies. Also did the same on my
> >elevator servos in the stab, changed the 3421's to the 3421SA's. The
> >3421's had also developed a lot of slop after 200 flights. For the
> >rudder I run the 8411SA. Unless I run into problems with the nylon
> >gears stripping I'm really sold on the SA's. Of course, flying FAI
> >you put a lot more stress on your servos.
> >
> >On my second plane I run pull-pull on the elevator and use the JR
> >8417 which seems to be the defacto digital elevator servo in the JR
> >line. It's a great servo but even brand new it's not nearly as tight
> >and slop free as the SA's. I'm considering changing the elevator to
> >the 8411SA, though it's not as fast as the 8417.
> >
> >Keith Black
>
> Keith,
>
> Replace the stock 8417 gears with 8101 nylon gears and you'll have
> yourself an 8417SA (the 8411, the 8411SA, and the 8417 all use
> essentially the same gear set).
>
> Also, if you change out the metal output gear on the SA's for nylons
> you'll see an even tighter gear train.  It's a pain to do but well
> worth it.
>
> Thx, Jerry
> -- 
> ___________
> Jerry Budd
> mailto:jbudd at qnet.com
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