From: earl@trsvax.tandy.com
Newsgroups: rec.models.rc
Subject: Re: Micro Servos
Date: 8 Oct 92 20:30:00 GMT
Nf-ID: #R:sasb.byu.edu:0:trsvax:1195667312:000:4921
Nf-From: trsvax.tandy.com!earl    Oct  8 15:30:00 1992



/* ---------- "Micro Servos" ---------- */
Morning netters,
	Seems that the r/c mags have had several issues with small (1/2A) 
type airplanes featured in constuction articles lately.  I have been 
interested in these, but the problem is the fact that I don't have any micro 
gear for these beasts.  I also am interested in giving HLG's a shot.  I know 
little more about the micro servos out there than their names.  Which are 
the best Micro's?  The ones I am looking at are:
Futaba S-133\33
Kyosho GS-31 (?)
Royal
Tower Hobbies
etc
From the pictures it seems that several of these are the same servo with a 
different label.  Has anyone had any experience with these?  I am also 
interested in the best place to by them.  What are the difference between 
BB, Coreless etc.  Is there really a significant difference?
Also I am interested in getting some 250ma or 110ma battery packs.  I have 
seen a thread recently about Sanyo and the like, but where is a good place 
to get these?  Can they be charged on the stock charger that comes with 
radio gear.
Thanks in advance
Steve.
*********************************************************

Batteries, several firms advertise nicads for sale in RCM and other magazines.
You can either buy the cells and build up your own or buy them for Futaba and
Airtronics and JR Propo already made up. ACE RC also offers battery packs, all
you have to do is add your own connector to the wires. Charging isn't too much
of a problem. If you use a regular 45mah charger, just watch the charge time
closely. EG. a 250 mah pack will charge up in about 4-5 hours. IHMO, I like to
use ACE RC's variable rate charger for my oddball size packs, it works good.
Radio Shack also offers Nicad's, the 4 cell cordless telephone packs work
great.

Servos, for normal 1/2a RC planes you don't really need anything special. Most
of these models have enough room to get standard size servos inside, without
too much trouble. Using a 225 to 250 mah pack is all that is needed. ACE's
Wizard, Pacer, GLH will all work great with regular radio systems, using only
two servos for 2 channels of control.

Micro servos:
   Futaba's S133 weights about .65 ounces, works good, priced OK too.
   Airtronics Micro servos, weighs about .6 oz and works great but pricey.
   Kyosho's micro servo weighs just in a .5 oz and works good too.
   Tower's low cost generic micro servos look like Futaba S133's but are a
     little bit larger in size and weigh in at .95 ounces. They work good and
     are priced OK too.
   Daniel's RC offers the same servos as Tower does, minus the labels, for
     even better prices. They work good too.
   Canon RC Systems offers the smallest RC systems around. The four channel RC
      flight system ready to fly with battery weighs in at about the same as
      three Futaba S-148 servos. The new systems are even 1991 rated. They have
      tiny servos that are really small that weigh about .4 ounces each.
    COX also has some micro sized servos that work well, they weigh in at about
      .9 ounces each. A lot of people bough complete ready to fly 1/2a systems
      using these servos. You can usually get the whole thing for cheap prices
      from disenchanted beginners at garage sales. Actually, it is a myth, these
      COS RC planes fly great. But many of the older systems use the COX Cadet
      radios and these are Mode One types, which scares off most RCer's today.

   Unless your flying a 1/2a Pacer in AMA pattern contests, you don't need to
   really worry about centering accuracy and all of that stuff. The servos all
   work good. I like to take my 1/2 and 1/4a models out to a park nearby
   where I work and fly at lunchtime from time to time. I have a couple of
   models that I left using dry cell batteries only. This way I just throw in
   a batch of batteries and go flying, no charging hassles (eg. I forgot to
   charge it up last night).

   Fun 1/2a planes, the ACE Wizard is a great warm up plane. It gets you used
   to flying 2 channels only, and acquainted with 1/2a engines. 2 channels is
   no big deal, you zoom around full throttle until the engine quits and "dead
   stick it back in" for landings. After you fly 1/2a for a while, dead stick
   landings become nothing at all to worry about.
   The ACE Pacer and GLH both fly great and are easy to to fly for modelers who
   have advanced beyond the beginner stage.


***********************************************************************


<This information is provided by an individual and is not nor should be
 construed  as  being  provided  by  Radio  Shack or Tandy Corp.  Radio
 Shack/Tandy Corp has no obligation to support the information provided
 in  any way. > 
						
						Earl W. Bollinger
						@ <trsvax!earl>


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