HDTenEightyP/NetNews huggingface dataset:
Newsgroups: rec.models.rc
Date: Sun, 24 Jan 1993 18:50:04 -0500 
From: Michael Oliver Muller <mm7q+@andrew.cmu.edu>
Subject: Re: Connecting pushrods to servos

My vote is for Z-bends. You can even get a special pair of pliers that
will make "perfect" Z-bends. I guess you could first use the EZ
connectors when you are setting everything up, so you can make a million
adjustments without problems. But for flight, use Z bends and make the
adjustments at the other end.

Mike Muller
mm7q@andrew.cmu.edu
Newsgroups: rec.models.rc
From: root@austin.ibm.com ()
Subject: Re: Goldberg Ultimate Recommendations
Originator: root@tomk.austin.ibm.com
Date: Mon, 25 Jan 1993 23:33:40 GMT
Organization: IBM Austin


In article <1993Jan25.194739.3645@mlb.semi.harris.com>,
mwp@ms9.mis.semi.harris.com (Mark W. Poole) writes:
> It looks my next plane will be a Goldberg Ultimate Biplane,
> and was wondering what engines you might recommend.  The box 
> states:
> 
> 	 ".60-.90 2c or .90-1.20 4c"
> 
> What have you "netters" seen used on this plane and how was
> the performance?  I'd like to go with a 4c but the cost may
> be unreasonable to me.  Would an OS 61 BB be enough power?
> 
> 
> thanks,
> 
> Mark.

Here's my $.02 worth:

From what I've seen of the Goldberg Ultimate, it looks like most of the
'stronger' .61's (Y.S., OS SF, SuperTiger) will fly the airplane, but
if you want PERFORMANCE (i.e., pattern-capable), then a 1.20 4C is a 
must.  I'd go with the Y.S. 120 (the A/R is a brute, but the 'normal'
1.20 is more than enuf for this bird) or with the OS 1.20 Surpass II
with pump.  The major differences between these 2 engines that I have 
observed are:

        Y.S.                                O.S.
    lighter  (?? not sure)             comes with muffler 
    slightly stronger  (*)             may be more available
    expensive exhaust system           cheaper, counting exhaust system
    runs great out of the box          runs equally great after a
                                         protracted break-in period
                                         (like 4-5 gallons of fuel)

I own one of the OS 1.20 pumped motors, several friends own the Y.S.

I drive a 9 lb+ MK Lazer with mine, run a 14.4 X 10.5 APC prop at
9,800 RPM static, and have virtually unlimited vertical.  However,
it's taking a long time to get it "broken in" to where it will idle
reliably.  It IS getting there, however.  Others with the Y.S. are
generally running the same or similar size APC props, perhaps 300 -
500 RPM faster.  But, they spend a lot of money replacing flexible
header pipes and mufflers, where I use the stock, comes-with-the-
motor OS muffler with no problems.

I have seen the GB Ultimate with a strong OS .61 SF RE with a pipe,
that flew well, but ran out of steam real quick on the verticals.  I
have also seen a GB Ultimate with a Y.S. 120 do a knife-edge loop.

+------------------------------+------------------------------------+
|  Tom "Krash" Krueger         |    IBM Adv. Wrkstn. & Sys. Division|
|  AMA 374525                  |    Austin, Texas                   |
|  krueger@austin.ibm.com      |    "Home of the RISC System/6000"  |
+------------------------------+------------------------------------+
-- 
+------------------------------+------------------------------------+
|  Tom "Krash" Krueger         |    IBM Adv. Wrkstn. & Sys. Division|
|  AMA 374525                  |    Austin, Texas                   |
|  krueger@austin.ibm.com      |    "Home of the RISC System/6000"  |
Newsgroups: rec.models.rc
From: mgwheele@crockett.ecn.purdue.edu (Matthew G Wheeler)
Subject: Re: how do I tune a 12lw
Organization: Purdue University Engineering Computer Network
Date: Tue, 26 Jan 1993 15:51:49 GMT

In article <milo-250193195254@mielo.dorm.rutgers.edu> milo@dorm.rutgers.edu (Jim  mielo) writes:
>I recently sold my rc 10 and got a new  rc 12lw
>
> This being my first pan car with a T plate ( ran a Lynx II), I have no
>idea how to tune it. I'm running the tires in the box but have a set of
>green dots I plan to put on when the old ones are shot.  
>
>     I understand the concept of increasing spring rate on the rear to get
>over steer, etc.

I know very little about R.C. cars, but I have studdied vehicle dynamics
quite a bit. It seems to me that the overstear characteristics of a car
depend more on C.G. location and  front/rear tire characteristics than
on suspention spring rate. Does this jive with the experiences of the R.C.
car guys out there.  Maybe changing the spring rate of the rear suspention
changes the effective coeficient of friction of the tires? If so I don't
see it. Please explane.

Matt
From: bentonh@tekig1.PEN.TEK.COM (Benton Holzwarth)
Newsgroups: rec.models.rc
Subject: Re: Wind Speed Gauge
Date: 25 Jan 93 19:39:21 GMT
Reply-To: Benton.Holzwarth@tek.com
Organization: Tektronix, Inc., Beaverton,  OR.


    Found two mail-order sources, Hobby Lobby (someone already
mentioned) and Sporty's Pilot Shop... Sportys is a tad cheaper,
especially if you consider the WATS line to call in the order there,
and each order to Sportys gets you entered for their annual
(man-carrying) airplane give-away.

    Probably the decider is which companys catalog subscription
list you want most to get entered on.


    Benton.Holzwarth@tek.com



    Hobby Lobbys description (it appears to be the same item at
both places):

    About 6" long. Hand-held device has two scales: 2 to 10 mph
and 4 to 66 mph.

Hobby Lobby			item: WID001 Wind Meter
5614 Franklin Pike Circle		$14.00 + $4.90 shipping
Brentwood, TN 37027
(615) 373-1444
(This is last years Hobby Lobby catalog I'm reading, I hope the
prices haven't changed...)

    or

Sporty's Pilot Shop		item: 7763A Dwyer Wind Meter
Clermont County Airport			$13.90 + 4.75 shipping
Batavia, OH 45103-9747
(800) 543-8633


Newsgroups: rec.models.rc
From: robertw@informix.com (Robert Weinberg)
Newsgroups: rec.models.rc
Subject: Re: Transmitter/Receiver Mods
Date: 22 Jan 93 23:32:15 GMT
Organization: Informix Software, Inc.

In article <1993Jan22.134412.1975@usceast.cs.scarolina.edu>  
hutto@SMTC.engr.scarolina.edu (Brent Hutto) writes:
> In article <96797@rphroy.ph.gmr.com>, pfoss@cmsa.gmr.com (Pete Foss PO/46)  
writes:
> >
> >In article 3zr@inews.Intel.COM, dbraun@cad636.intel.com (Doug Braun ) writes:
> >>
> >>--
> >>
> >>I have a 4-channel Futaba FM system, and I was thinking of getting
> >>a plane (Sig Samuri glider) that needs elevon mixing.
> >>
> >>Does anyone make a little black box that goes in the plane
> >>to do the mixing electronically? 
> >
> >ACE makes a little box called a Cristy mixer that will do elevon mixing. I think
> >it costs about 20 or 30 bucks.
> 
>     ...and it reduces the available throw on each servo by 50%.

Which reminds me that a guy was flying a Samurai with elevons around here (looked  
great, manuevering well even in light winds), but said he was going to convert to  
separate tail elevator for better handling. That's in option in the plans.
--
+================================+================================+
|         Rob Weinberg           |  Workstation publications tech |
|   Email : robertw@informix.com |        Graphic designer        |
|   Voice : 415-926-6754         |     <imagine your ad here>     |
+================================+================================+
From: cb1p+@andrew.cmu.edu (Chris Beasley)
Newsgroups: rec.models.rc
Subject: Webra Engine Service Shops???
Date: 26 Jan 93 20:54:19 GMT
Organization: Sponsored account, Carnegie Mellon, Pittsburgh, PA

Hey, 
I have this old Webra .61 heli engine that has been acting up for a
while.  My local shop ordered parts for it a couple of months ago but
they have been back-ordered for ever!  I'm wondering if there is some
good place to get parts for this engine or better yet, a place that
I can send the engine and have them fix and test it for me and ship 
it back?  This would be the best because I am getting tired of playing
around with an unreliable engine and endangering one of my
helicopters.
Thanks in advance!
CB
Newsgroups: rec.models.rc
From: larry@peak.psl.nmsu.edu (Evil Engineer doin' it the Cowboy Way)
Subject: Re: C/L Combat Beginner seeks help!
Organization: New Mexico State University, MetaPhysical Science Laboratory
Date: Sun, 24 Jan 1993 05:31:42 GMT

Have we got a guy to talk to you!

((Hey, Isk!!))

Perhaps you're interested in CL stunt too?
Welcome!

L.
_____________________________________________________________________________
                                    | Larry E. Cunningham          |   
             ____                   | %Physical Science Laboratory |  _~~_
   |        | ___\          /~~~|   | New Mexico State University  | (O)(-)
  _:_______|/'(..)`\_______/  | |   | Las Cruces, NM USA 88003     |  /..\
 <_|``````  \__~~__/  USAF ___|_|   | larry@psl.nmsu.edu           |   ==
   :\_____(=========,(*),--\__|_/   |----------------------------------------
   |       \       /---'            |"Yeh, Buddy..                   
            | (*) /  Mustangs       | I've got your COMPUTER!        
            |____/   Forever        | Right HERE!!"           (computer THIS!)
____________________________________|________________________________________
Opinions expressed here are CORRECT, and all mine, not PSLs and not NMSUs..
Do NOT use the term FAT around me. I'm NOT fat. I'm gravitationally challenged.
From: bentonh@tekig1.PEN.TEK.COM (Benton Holzwarth)
Newsgroups: rec.models.rc
Subject: Re: Wind Speed Gauge
Date: 22 Jan 93 19:55:49 GMT
Reply-To: Benton.Holzwarth@tek.com
Organization: Tektronix, Inc., Beaverton,  OR.

In article <1jnaclINN9fi@male.EBay.Sun.COM> frankfx@volkswagon.EBay.Sun.COM writes:
>
>Who can tell me where to get a hand held wind speed
>detector. I have seen a few on the slopes, but have
>not been able to find out where they come from.
>

    I've seen ultralights with a simple airspeed indicator mounted
to a wing strut, in the free-stream, but where the pilot can see
it. The construction is a clear plastic vertical column, about six
or eight inches long with a 'pitot' inlet at the bottom, and 'static
port' at the top.

    A 'pith-ball' (or whatever weight is required to float in the
updraft) rides in the vertical section, which is slightly tapered.

    Since they're used for ultralights they're typically calibrated
for fairly low speed (as man-carrying aircraft go), like 0 to 75 mph.
I have no idea how accurate they are at the low end of the scale.

    Anyway, it would seem like one of these would be far cheaper and
far more rugged than one of the ones with the whirling cups on the
shaft. I expect you could just stuff it in your back pocket, between
readings...

    I'll look in one of my 'pilot' catalogs when I get home and
see if they carry 'em and at what price.


    Benton.Holzwarth@tek.com

Lines: 56
From: vech@Ra.MsState.Edu (Craig A. Vechorik)
Subject: antique model kit for sale
Organization: Mississippi State University
Date: Fri, 22 Jan 1993 20:09:37 GMT

I flew model airplanes many years ago, in the sixies, and when I was
about 14, I bought an R/C glider that was manufactured by Fox mfg
(the same folks thast still make engines) it seems fox bought
out a famous manufacturer of model kits, Berkley models in about 1946.
I understand that they only produced balsa, die cut models for a few
years before reverting back to nothing but engine man.  But anyway,
this model, which is still in the original box, with the plans, and
ALL of the wood, is called the "Buzzard"  This thing is HUGE. 
At least by the size stuff we flew in the 60's and 70's before chainsaw
engines came into use. The model has 144" wingspan, two 4' tips that
have the polyheidrial built in plug into the main wing, and it has
about a 14 or 16" root width at the fuselage.  The Fuselage is 9'
long, and believe me, you could put a gallon jug of fuel in it, and still
have room for today's radio gear.  The instructions tell you that if
your going to use MORE than 9 POUNDS of radio gear  (we are talking
tubes, here guys) how to set up the angle of attack of the wing.
But, they also say "DO NOT EVEN HAND GLIDE THIS MODEL WITHOUT YOUR
NAME AND ADDRESS ON IT!"  The airfoil is undercambered, and while this
thing has die cut ribs, it must have 10 individual spars in the wings,
the 24" stabilizer is built much the same. They show a engine mounted
on a pylon above the wing, or give options for bungee launch.
Anyway, I have gotten out of R/C a number of years ago, but I still
have this kit.  I believe that it was manufactured in about 1948.
Hell, it was old when I bought it. I've even got an Olsen & Rice
.23 engine I'll throw in the deal.. it is from about '52 I think.
Last time I used the engine, it ran.. anyway you can have this 
museum piece kit and the engine for $300.00
E-mail me, 'cause I don't read this group 
thanks,
Craig Vechorik
E mail vech@ra.msstate.edu

Newsgroups: rec.models.rc
From: jrp@kowari.cpsg.com.au (John Pitman)
Subject: R/C flying on holidays
Organization: Computer Power Software Group Pty Ltd
Date: Tue, 26 Jan 1993 02:47:43 GMT

Hi all, 
There is a full size glider club down here (oz) that runs special promotions
to get Japanese tourists in for gliding holidays - either to learn , or get
more time for those already qualified in them.
It struck me that maybe something similar may be of interest to R/C fliers on
holiday down here. It shouldn't be too hard to at least make lists of Clubs
and flying sites available to tourists through their own national control
bodies (like the AMA) so that they can get in touch for at least a look-see and
chat. To be able to fly for more than a few times would mean some sort of
short term honorary membership (to get insurance) and a check flight, and a run
down of any local rules. Most clubs here allow visitors 3 visits before asking
them to join formally. From what I have seen, about 80% of fliers here fly
Mode 1, but I believe most US fliers are Mode 2 ??? is this correct.
Anyway, how many out there have/might/will visit Oz some time, and would like
to at least visit a club, and/or fly while they're here?? .
To give you an idea of our field: about 25km from centre of a metro area of 
>2.2 million, in the back of a public park, next to a Golf course (a little
overflight on approach from the south) , 1 N/S strip grass (but good) ~400+ft,
1 ~E/W 300 ft(downhill slightly), overfly area ~ 50 acres, nearest road is
visible ~.7 km away current ceiling 300ft (but applied for 1000ft), < 15mins
drive for most members. membership 130+, but rare to see more than 20 pilots
at the strip at any one time. No club house as yet (tenure is not secure) but 
we are working on it. Flying any time after 9:00 AM any day.

Let me know if there is any interest at all, or e-mail if you want info on
sites to visit if you are coming anytime anyway.
jp
Newsgroups: rec.models.rc
From: larry@peak.psl.nmsu.edu (Evil Engineer doin' it the Cowboy Way)
Subject: Re: Tachometers 
Organization: New Mexico State University, MetaPhysical Science Laboratory
Date: Sun, 24 Jan 1993 05:36:39 GMT

>>>>> On Wed, 20 Jan 1993 19:11:20 +0000, bob@harrier.demon.co.uk (Bob day) said:

>> 
>I believe by "analog tach" it means the readout is an analog scale -
>needle and dial instead of LCD digits.  The pickup is still optical
>so you don't have to touch the prop.

Bob> Could well be..... Most of the analog one's I've seen have a
Bob> rubber cup/wheel which you press onto the spinner...

Bob>  cheers
Bob>  bob

 Good lord, man! Over here in the Colonies we call them things electric
 starters! 8->

 L.
"Yeh, Buddy..            | larry@psl.nmsu.edu (Larry Cunningham)|  _~~_
 I've got your COMPUTER! | % Physical Science Laboratory        | (O)(-)
 Right HERE!!"           | New Mexico State University          |  /..\ 
 (computer THIS!)        | Las Cruces, New Mexico, USA 88003    |   <> 
--------------------------------------------------------------------------
Disclaimer: Opinions expressed here are CORRECT, mine, and not PSLs or NMSUs..
Tularosa: tullies, roses, lava, white sands, and home of THEM! (atomic ants).
From: jmoonan@ccv1.bbn.com (John Moonan)
Newsgroups: rec.models.rc
Subject: Re:  Servo centering
Date: 22 Jan 93 10:44:35
Organization: BBN Communications, Cambridge, MA
NNTP-Posting-Host: ccv1.bbn.com


	Other servo manufacturers besides Kraft provide the servo centering
control in the center of the output shaft.  For example, ACE Bantam servos and 
some old Royal servos that I own have this feature.  Futaba doesn't have this
but instead has an output shaft that is splined vs square so that it alows
small centering adjustments to be made by removing and repositioning the 
servo arm.
--

					THANX, John Moonan
					SYSOP, 495th R/C Squadron
					Groton, MA
Newsgroups: rec.models.rc
From: mgwheele@author.ecn.purdue.edu (Matthew G Wheeler)
Subject: My plane has fallen and it can't get up!
Organization: Purdue University Engineering Computer Network
Date: Tue, 26 Jan 1993 17:57:11 GMT

I've been flying my first plane, a Goldberg Falcon 56, for about 
6 months now I feel like I'm getting to be a pretty good pilot.  
I just finished a 0.049 size Taylorcraft.  It weighs 15 oz, has
about a 1 ft^2 flat bottom wing, micro radio gear to control
rudder and elevator, and a Cox reed valve engine (no throttle).

I was expecting this plane to be a fairly gentle flyer.
It looks like a mini trainer. Thismorning I attempted my
flight.  The wind was about 10 mph, but I fly in over 15 mph
comfortably with my falcon. Anyway I hand launched the little
plane into the wind and it did a half loop half roll to
down wind and mashed into the ground before I knew what happened.
I'm sure I must have moved the stick, but I don't even
remember it. I was expecting to have a little more time to 
get control of the plane.

I guess I'm looking for sugestions.  I'd really like to fly
this plane without the aid of an instructor.  I have very little 
$ invested in it and I'd like to use it to practice doing my own
first flights. I will wait for a calm day before trying again.
And I'm wondering if I have the control throws set to high.
If anyone else has any suggestions I sure like to hear them.
I really need at least 2-3 seconds of semi level flight after 
launch so that I can get can get control of the plane. Thanks.

Matt Wheeler
From: bbb@kuhub.cc.ukans.edu
Newsgroups: rec.models.rc
Subject: THE END OF R/C MODELING
Date: 25 Jan 93 13:11:00 CST
Organization: University of Kansas Academic Computing Services

*URGENT*

I noticed there has been no converstion concerning the proposed
FCC 72-76MHz band reorganization that was explaned in a post
made around the 12th of this month.  (title was  Frequency Alert)

I hope that means that you are all too busy writing letters to the 
FCC and your congresspersons.

THIS IS SERIOUS STUFF FOLKS!

If the proposed changes go though we can kiss channels 11-42 off

The plan puts mobile transmitters only 2.5Khz off of our channels!
I doubt that it would be safe to trust even the best of narrow band
receivers to reject a multiple time more powerful signal that close.

If you haven't read the orginal posting, GO FIND IT!  I could perhaps
repost it, or the the author might.

The last time something sneaky like this was done, amature radio operators
lost a big chunk of spectrum to United Parcel Service.

Big money is behind this push, and they have clout.  OUR ONLY HOPE IS
A GRASS ROOTS EFFORT TO STOP IT.

DO SOMETHING NOW!  Its  *your*  hobby and investment that you will save.

(stepping down from box now...)

BB

E-mail welcome.


Newsgroups: rec.models.rc
From: asrgf@wombat.newcastle.edu.au
Subject: C/L Combat Beginner seeks help!
Organization: University of Newcastle, AUSTRALIA
Date: Fri, 22 Jan 1993 12:00:34 GMT

 After a gap of about twenty years I would like to get involved in control line
open combat again. My questions are these:

 *Engines 
 *Models
 What are the current "hot" medels and whwere do I get plans etc?
 *News
 Are there newsletters that cover the topic, and how do I subscribe?


 What are the current "hot" motors and where do I get them.

Newsgroups: rec.models.rc
From: cwc51@cas.org (Charles W. Collins)
Subject: Connecting servo cable to rudder
Organization: Chemical Abstracts Services
Date: Mon, 25 Jan 1993 13:07:10 GMT


What is the best method for connecting a rudder that is on an angle (about 20
degrees)?  There is upward swing produced at the connection point as the rudder
moves back and forth.

Thanks!

Chuck

-------------------------------------------------------------------------------
Charles W. Collins       |  Chemical Abstracts Services  | E-mail address
3419 Cheshire Rd.        |  2540 Olentangy River Road    | cwc51@cas.org
Delaware, Ohio   43015   |  Columbus, Ohio  43202        |
(614) 548-5052           |  (614) 447-3838 ext. 2517     | USA
From: jmoonan@ccv1.bbn.com (John Moonan)
Newsgroups: rec.models.rc
Subject: Re: dream craft
Date: 21 Jan 93 18:12:44 GMT
Organization: BBN Communications, Cambridge, MA
NNTP-Posting-Host: ccv1.bbn.com
To: jfriedl@TUBBY.MACH.CS.CMC


	Flying models with TV cameras (both helicopters and airplanes) has been
done quite a few times and is not difficult if you are an experienced pilot.
It is not something that I would recommend to a beginner.  Your best bet would
be to locate a local hobby shop that caters to R/C flyers and talk to the
shop personnel about clubs in the area.  Then get yourself signed up with
an instructor.  Good luck.
--

					THANX, John Moonan
					SYSOP, 495th R/C Squadron
					Groton, MA
From: rob@firefox.uk.sun.com (Rob Latham - Sun Logistics Europe)
Newsgroups: rec.models.rc
Subject: Re: PCM or not PCM, HAM or not HAM...
Date: 20 Jan 1993 11:08:24 GMT
Organization: Sun Microsystems (UK) Ltd
Distribution: world
Reply-To: rob@firefox.uk.sun.com
NNTP-Posting-Host: firefox.uk.sun.com

>Splash my boots another Britt......

Yes there are a few us listening in. Its nice to hear
comments about Flair kits from the other side of the water.


Regards

Rob

Sun Microsystems UK Ltd.
Bagshot
Berks

P.S Just finishing off my first AcroWot kit



Newsgroups: rec.models.rc
From: robertw@informix.com (Robert Weinberg)
Newsgroups: rec.models.rc
Subject: Re: Wind Speed Gauge
Date: 22 Jan 93 15:29:04 GMT
Organization: Informix Software, Inc.

In article <1jnaclINN9fi@male.EBay.Sun.COM> frankfx@volkswagon.EBay.Sun.COM (Joe  
Fenech) writes:
> 
> 
> 
> Who can tell me where to get a hand held wind speed
> detector. I have seen a few on the slopes, but have
> not been able to find out where they come from.

To add another angle to the question: does anyone know of a wind speed detector  
that estimates the amount of lift (based on up angle and speed, I suppose) at a  
slope?

BTW, I've found that my slope plane itself makes a very responsive wind direction  
indicator. I hold it vertically, nose down in the palm of one hand, with the other  
hand loosely encircling the fuse. The wings continually adjust to position  
themselves perpendicular to the wind.
--
+================================+================================+
|         Rob Weinberg           |  Workstation publications tech |
|   Email : robertw@informix.com |        Graphic designer        |
|   Voice : 415-926-6754         |     <imagine your ad here>     |
+================================+================================+
Newsgroups: rec.models.rc
From: fisher@kay.enet.dec.com (kay::fisher)
Subject: Heathkit
Organization: Digital Equipment Corporation
Date: Tue, 26 Jan 1993 05:17:15 GMT
X-Posted-Via: NEWS-NOTES gateway (a hack!)

>                            <<< Note 645.2 by ::Bob Smith "rbs@sawtooth.idaho.amdahl.com (Bob Smith>                                    -< Re: Do most servos input a "pulse width modulated" sig? >-
,..
good units.  Let's see, $200 got you a 5 channel radio, AM, no servo reverse,
basic square box construction, no dual rates, and you had to build it
yourself!  As we all know, things have come a long way!
,..

had to build it yourself?

Must be a pessimist.  

You get to build them yourself!

Wish they were still in business.

Bye          --+--
Kay R. Fisher  |
---------------O---------------
################################################################################