HDTenEightyP/NetNews huggingface dataset:
From: miked@syscon.rn.com (Mike DeMetz)
Subject: Re: Dave Brown Flight Simulator
Organization: Syscon Corporate Headquarters - South Bend, IN USA
Distribution: usa
Date: Tue, 08 Sep 1992 13:25:40 GMT

lee@convex.com (Gene W. Lee) writes:


>I have the dave brown airplane flight simulator and have grown tired of it.

>Rather than sell it, does anyone have the dave brown flight simulator
>for helicopters who would want to swap software? Since we both have the
>joystick controllers, we would just need to trade software.
>I figure this would be a nice way to see if helicopter flying would be 
>my bag.
If you have the PC version you should just upgrade ($25) to the new
version which includes both and has much better(EGA) grahpics.

>-- 
>Gene W. Lee          lee@convex.com         +1 214 497 4733
>Convex Computer Corportation                 ------- __o   
>3000 Waterview Parkway                      ------ _`\<,_ 
>Box 833851, Richardson,Tx,75083            ------ (*)/ (*)
Newsgroups: rec.models.rc
From: rick@cs.sunysb.edu (Rick Spanbauer)
Subject: Electric helicopter?
Organization: State University of New York, Stony Brook
Date: Thu, 10 Sep 1992 23:19:38 GMT

I am considering the purchase of an electric helicopter and would
like to hear what comments/suggestions, etc people here have on
the subject.  This will be my first flying RC vehicle.  I would
like to tinker with the unit a bit, eg attach TV camera, play
with DSP control systems, robotics, etc and the electric seems to fit
the bill nicely for such backyard hacking.  What I am interested
in particular are:

	lift capacity of typical electric heli?
	how big are they compared to usual methanol helis?
	what is a reasonable unit to buy?
	recommendations on a radio?
	total flying time on a charge?

I would also appreciate hearing pros/cons of electric vs methanol power
for helicopters, too.

Thanks! -- Rick Spanbauer, SUNY/Stony Brook
Newsgroups: rec.models.rc
From: miked@syscon.rn.com (Mike DeMetz)
Subject: Re: Opinions wanted on heli simulators
Organization: Syscon Corporate Headquarters - South Bend, IN USA
Date: Thu, 10 Sep 1992 14:37:48 GMT

Well the Skylark is very good. It needs a slot for a modified game
card. He is supposedly working on a plane version and serial port
interface. There are also PRM files availible on CIS for some copters.
Have not heard whether Ambrosia has got Aerochopper out yet for PC.
It is nearly as good as Skylark and uses serial port. Both of these
are way better than DB's orginal. DBFSIM3 is about as good in graphics
but does not have enough parameters to set.



?????????????????????????????????????????????????????????????????????????????
! Mike DeMetz                                          -----|-----          !
! Secretary-Michiana R/C Choppers                   *>=====[_]L)            !
!                                                         -'-`-             !
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
From: jrp@bohra.cpg.oz.au (John Pitman)
Newsgroups: rec.models.rc
Subject: 5cell Rx packs
Date: 6 Sep 92 07:24:28 GMT
Organization: Computer Power Software

Hi there,
As I said in an earlier post I have used a 6v pack on Futaba rx & servos with 
only good results. One other flier said however that he had seen JR servos get
unstable with 6v going in - tended to get jittery! Also I have seen a brand new
JR set flying with a device to signal low rx voltage by waggling the rudder
(supplied by a member of our club) , signal low almost immediately it got into
the ai. On investigation, it was found that although the pack was > 4.8v, only
 4.4v or less was getting to the Rx. The switch harness was ok, so back to the
 JR dealer. 'oh yes (he says), some receivers now have dropping resistors in
 them so you can run them off a 7.2v pack like in an electric something'.
 This was on a 6 chnl airplane set!!! needless to say a few words were spoken
 to and fro, and the rx swapped for a better regulated one.   Keep your eyes 
 open guys!
 jp
Newsgroups: rec.models.rc
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: R/C Carrier <Was: Re: Boats and float planes>
Organization: Indiana University
Date: Thu, 10 Sep 1992 04:29:52 GMT

Check out this month's Flying Models magazine. Nice pictures
of an R/C Carrier event. The "carrier deck" was an area marked 
out on the asphalt complete with arrestor wires (no island or
barricade though 9-)  )




-- 
-------------------------------------------------------------------------------
Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS                 !
Newsgroups: rec.models.rc
From: m14494@mwvm.mitre.org (Mike White)
Subject: The SeaView submarine... what show?
Organization: The MITRE Corporation
Distribution: na
Date: Tue, 8 Sep 1992 18:39:21 GMT

"Voyage To The Bottom Of The Sea", of course.  Admiral Nelson,
Captain Crane, et al, were a spinoff of a not-too-bad sci fi
movie of the same name staring Walter Pidgeon and Peter Lorrie. In it,
a nuclear explosion or something ignites the ionosphere or 
some such, and Adm. Nelson and the gang have to save the world.
The TV show started out pretty well (in black and white); part
adventure series, part spy show (very hip back then), it featured
the "flying sub", a little disk-shaped aircraft that could submerge
and dock with the SeaView.  Later, the show degenerated into 
the "monster of the week" show, with all the monsters of the
"guy in a rubber suit" variety.  Week after week, a Kelp
Monster, or a Crab Monster, or a Carrot Monster (so help me,
I'm no making this up) would ravage the sub, it would sink 
to the bottom, a few instrument panels would blow up, and
the crew would zap the carrot and save the sub just in time for
the last commercial.  Whew... !  Just thinking about it makes me
want to blow up my tv.  Glad to hear that folks are modeling the
SeaView, though... it was pretty cool looking, even though it
would have cracked like a beer can at the depths they said they
were operating at.  Well, that's show biz...

************************
* These are my opinions only.*
************************
Newsgroups: rec.models.rc
From: paal-sb@hsr.no (Paal Steinar Berg)
Subject: "Do 'Real Men' (tm) Use a Slipper Clutch or Just Spin Out"
Organization: Rogaland University Centre
Date: Mon, 14 Sep 1992 10:26:46 GMT

The trick is to have enough grip to *not* spin out.. The 2.2 hp gas card don't,
so why should some sissy electric slowmo off-roader spin out... What's the point
of a XXX$ ESC when you use it as an on/off switch...

I like gas cars...The noise...The smoke...The charging time *NOT* ...hi hi..


Paal

Paal-sb@hsr.no
Gasheads unite.
Serpent Sprint (and a lot of electric shit)
From: bs464@cleveland.Freenet.Edu (Duncan R. McCoy)
Newsgroups: rec.models.rc
Subject: RE: Hobby Shack Birdie .40
Date: 13 Sep 1992 21:01:14 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: bs464@cleveland.Freenet.Edu (Duncan R. McCoy)
NNTP-Posting-Host: hela.ins.cwru.edu


In a previous article, $stevee@sasb.byu.edu (Stephen Eldredge) says:

>	My brother bought and put together the sister kit to the Birdie .
>40, the Birdie .10 size.  Wood quality was equally good, however 
>there were a few parts of the wrong size. (ie: bottom nose sheet was 1/4" 
>instead of 1/8") BTW we like the thick sheeting better after sanding.  Power 
>is an OS/10 fp.  He built it in two weekends, first flight to be Saturday.  
>It would be interesting to compare notes on the two.
>
>Steve Eldredge
>
Thanks, Steve. I flew me Birdie 40 for the first time this morning. It's
going to be a really fine airplane. Took 2 clicks of down and 2 clicks of
right trim for straight and level. The plane is a very smooth flier, at
recommended aileron throws the roll rate is a bit slow, so I upped it.
You can't have a fast aileron rate and good snaps, though. The trick for
getting it both ways is to set your low rate at about 75% and use low
rate ailerons and high rate elevator for snaps. Solid knife edge requires
about 3/4" rudder throw. Inverted required only a little down elevator
that the plane flies as well inverted as upright. This plane seems to
do a slightly better outside snap than inside. It does really well with
an inside snap at the top of the loop. Haven't been able to do an 
inverted flat spin yet. It tries to stay flat but drops out into an
axial spin. Oh well, a little more tinkering with the CG.

Basically, this is a really good airplane. It flies well and there were
no surprises the first time out. The final config is with a Magnum Pro
.45, APC 10 X 7, and Futaba 6NFK radio.

Recommended - a great $50 airplane.

-- 
Duncan R. McCoy
Boulder City, NV
bs464@cleveland.freenet.edu
---------------------------
Newsgroups: rec.models.rc
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: FAQ? (questions about engines)
Organization: Indiana University
Date: Sat, 5 Sep 1992 03:06:27 GMT

In article <1992Sep2.040508.27545@c3177208.ssr.hp.com> bill@c3177208.ssr.hp.com (Bill Chidester) writes:

>  You're on!

>  I'm not sure what law of thermodynamics is being violated.  This ain't
>a steam engine we're talking about here -- an internal combustion engine is
>not an adiabatic engine!  The object of an internal combustion engine is to 
>produce mechanical power, not heat.  The heat energy is a byproduct that is 
>lost during the process, it isn't stored anywhere to later be put back into
>the cycle:  Hence all those ugly fins we have glued onto the cases.  If
>you are delivering the same RPM into a prop at a higher engine temperature,
>your engine is running LESS efficient.  The addition of nitro is to make the
>engine more efficient, i.e., run cooler at the same RPM, or ultimately, more
>RPM (power, when twirling a prop) at the same temperature. 

Don't know about less efficient. I'd measure efficiency as unit power/unit
fuel (whether this would be a caloric unit or a volume or weight unit is 
up to you). 

You can produce more _power_ with more nitro, but I'll betcha the motor will
consume more fuel per unit time. You'd even come up with more fuel per unit
energy produced, since nitro has a smaller caloric content than methanol does.

An engine that runs hotter should also be more efficient in a caloric
sense, given everything else is the same.

>  Get a tank of FAI, flip it over (have the co-op use one of his more heavily
>bandaged fingers to start the engine) and tach it out to it's maximum RPM.
>Now do the same thing with 5%, 10% and 15% fuel.  You'll note that the engine
>will gain a few hundred RPM per each additional 5%.  The reason?  You added
>energy, but you also increased the efficiency of the engine so it ran a little
>cooler.  The end result is more RPM into the prop (up to the point where the
>ABC engine will shut down), indicating more horsepower on the shaft of the
>engine.

OK.. stick a tankful of 50% in the tank and take off. After a few
minutes your engine seizes. Also notice that smoke coming off the 
cylinder and the varnish that forms on the outside...

Why? Well, _that_ much nitro causes pre-ignition (or detonation). 

>  As to the why of nitro running cooler, I don't know. 

See my other post. Also ponder why alcohol engines produce so much 
more power than gasoline ones.





-- 
-------------------------------------------------------------------------------
Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS                 !
Newsgroups: rec.models.rc
From: paulm@storcon (Paul Moreau)
Subject: Re: GP CAP 21 queries
Organization: Storage Concepts, Inc.
Date: Tue, 8 Sep 1992 20:37:17 GMT


   I had the GP CAP 21 .40 size with a Saito .80 GK engine int it.  I added
   no lead and yes it was just a hair tail heavy.   I had the Aileron plates
   on and it was twitchy, but I like it that way.   I used a Futaba 7UAP
   radio with -60% exponetial on the ailerons just so I could control it
   in fo a landing without over controlling.   I had to have the full
   throw so that it would do whats caps do best:  Flat spins and that L
   word Laumchveks (sp?).   I loved it until while in a flat spin, one
   of the aluminum elevator braces broke and snaped the whole horizontal
   stablizer off on the right side.   My plane fell into a dive and I
   couldn't coordinate the one remining elevator and aileron in time to
   save it.

   If you have a radio with exponential, use it with the CAP.

-- 
          _____________________________________________________________
          -                *                      _______   _~;       -
          -            Paul Moreau               |       =_= /        -
          -    Sr. Diagnostics Software Eng.     \   USA    /         -
          -         Irvine, California      --->  *-_  ___ /          -
          -     UUCP: ..!uunet!storcon!paulm         \/   \\          -
          _____________________________________________________________

Newsgroups: rec.models.rc
From: m14494@mwvm.mitre.org (Mike White)
Subject: Re: Radio dreams
Organization: The MITRE Corporation
Distribution: na
Date: Wed, 9 Sep 1992 18:45:38 GMT

Robert Weinberg writes:
> SUPPOSE all transmitters used the SAME frequency, sending out packets of 
digitally... 
> Everyone would have to time-share the same airwaves
> One way would be to have a transmitter in the plane as well, sending 
>back a "received" signal, so that the pilot's transmitter would re-send until 
>it got a "received" back.
> Another possibility: a crude receiver inside the transmitter box. The 
transmitter would wait until it could detect no transmission...

Congratulations! You've just invented Carrier Sensed Multiple Access
(CSMA), the basis for many popular Local
Area Networks.  A similar technique is used, although at a lower 
data rate, in Packet Radio on ham radio (among other places) using
the AX.25 protocol.  Great idea, just a few decades too late.  For the
future of things like RC, and remote radio stuff in general, my money
is on Spread Spectrum (SS) technology.  I'll bet dollars to busted props
that there are SS prototypes on the bench at Ace, Futaba, et al, right now.

************************
* These are my opinions only.*
************************
Newsgroups: rec.models.rc
From: paulm@storcon (Paul Moreau)
Subject: Re: Airtronics / Futaba
Organization: Storage Concepts, Inc.
Date: Wed, 9 Sep 1992 14:01:57 GMT


In article <9209081551.AA08763@bottom.magnus.acs.ohio-state.edu>, mmarks@magnus.acs.ohio-state.edu (Matthew D Marks) writes:
|> Hello Net...
|> 
|> Problem:
|> My mother-in-law hates me.  I got my father-in-law interested in RC.  He now 
|> has a PT-40, Sturdy Birdie, and a Super Box Fly 40.
|> 
|> The problem is that he now has more planes than me.  :-(
|> --------------------------------------------------------
|> 
|> Question:
|> So, when my father-in-law made his order at Tower, they were out of Futaba 
|> Conquests.  He bought an Airtronics 4ch w/ trainer switch.  Does anyone know if
|> I can attach my Futaba training cable to my Futaba Conquest and his Airtronics 
|> radio???  I doubt it, but I though I'd ask...
|> 
|> Quesion #2:
|> He also has a spare Futaba s148 servo that he would like to use with his 
|> Airtronics radio.  All he needs to do is solder on a servo connector, but the 
|> Airtronics servo connector has the following scheme:
|> 
|> Airtronics:                                         Futaba:
|>              ---------black              black-------------
|> to connector ---------black              red--------------- to servo
|>              ---------black w/ red       white-------------
|> 
|> How do these connect?
|>

  Woops.....  It's a Futaba Servo into an Airtronics radio.....
  Then swap the black and red wire and change the connector.
  When putting an Airtronics servo into a Futaba radio, all one must do is
  swap the black and black w/ red wires, sand down the three tabs on the
  face of the connector and be carefull which way you plug it into the
  Rx.   Airtronics uses rectagular pins however, so it is not so easy going
  the other way.   You must replace the connector.
 
|> Thanks
|> Matt
|> --
|> ======================================================================
|> Matthew D. Marks                   ||   " In the race for quality,
|> Mechanical Engineering Department  ||     there is no finish line. "
|> The Ohio State University          ||
|> e-mail: marks.23@osu.edu           ||              - David T. Kearns
|> ======================================================================

-- 
          _____________________________________________________________
          -                *                      _______   _~;       -
          -            Paul Moreau               |       =_= /        -
          -    Sr. Diagnostics Software Eng.     \   USA    /         -
          -         Irvine, California      --->  *-_  ___ /          -
          -     UUCP: ..!uunet!storcon!paulm         \/   \\          -
          _____________________________________________________________
From: seanm@terapin.com (Sean McCaskey)
Newsgroups: rec.models.rc
Subject: Re: GP CAP 21 queries
Date: 6 Sep 92 10:46:54 PST
Organization: BBS

In article <1992Sep6.075333.6887@bohra.cpg.oz.au>, jrp@bohra.cpg.oz.au (John
Pitman) writes:
>Hi there
>If anybody out there has any experience of either of the Great Planes CAP 21s
>(.40 and .60 size), I am interested in your balancing and flying impressions.
>I just got my .40 size in the air - to get anywhere near balance on the mark 
>took 10 oz of lead in the front edge of the cowl, AND a 4.5oz brass prop nut!
>Before that it balanced about 1.75" behind the mark!!! I have a YS 45 with
pipe
>, 14oz tank, battery under the tank, servoabout 3/4 forn part of wing saddle.
>I have heard some guys say the 60 size is VERY twitchy until the CG is about 
>1/2" in front of the mark.
>Also, on the ailerons - one guy built his with the tip plates and blades as
per
>plans, and it was VERY twitchy in roll (unstable apparently), and it was
planted
>
>when it snapped out on approach. I built mine without the tip plates , as I 
>could not see them surviving much hangar rash, and its roll behaviour is quite
>ok at the spec throws - ie it does what its told, and is stable.
>any comments??
>jp


  
  I have seen a couple of these planes at the field and they DO tend to be tail
heavy...  If possible, go up in engine size.  If you are going to have the
weight up there, might as well be powerfull.  

  Your friend who planted one may have had his balance back to far?

---Sean---
Newsgroups: rec.models.rc
From: mtissand@magnus.acs.ohio-state.edu (Michael D Tissandier)
Subject: Thermodynamic laws
Organization: The Ohio State University
Date: Tue, 8 Sep 1992 17:07:41 GMT

PV=nRT is not a thermodynamic law, it is an equation of state.  In the
absence of compression v. heat data for the additive combustion products,
it is possible to increase pressure without increasing temperature.  In
the equation, 'n' stands for moles of gas, if this were to increase due
to an additive, the pressure could increase without adjusting the temperature
of the reaction.  The question of running temperature effects due to
additives is completely empirical in nature.

   --Mike

          mtissand@magnus.acs.ohio-state.edu
From: jorgense@plains.NoDak.edu (Lee A. Jorgensen)
Newsgroups: rec.models.rc
Subject: FOR SALE:  R/C CARS, 1/12th scale.
Date: 7 Sep 92 18:38:19 GMT
Article-I.D.: plains.20197

I'm posting this for a friend.  Please either write or call him. (he has no
e-mail address)


--------------
CARS and PARTS
--------------

1 - Delta Super Spider, Graphite    1/12th scale
       Complete, Ready to race with:
          Novak NER2S mini-Receiver w/crystals
          Novak NESC-T1 Electronic Speed Control
          Futaba 132H Steering Servo (Ball Bearing, fast!)
          Parma "Dry" ROAR '91 Motor
          Parma "Green" Tires (Foam)
          Parma Oscella PA9 Body
          Spare Graphite Chassis Plate
          *  Add a radio and go racing!!

1 - Parma Pro Panther 12, Fiberglass
       Complete "Rolling-Chassis", with wheels, axles, and bearings
       *  Add electrics and a radio and go racing!!

3 - Parma Euro Panthers, Graphite  (1/12th scale)
       Complete "Rolling-Chassis", with wheels, axles, and bearings
       *  Add electrics aa radio and go racing!!

4 - Parma Euro Panthers, Fiberglass
       Parts missing.

40+ Pairs - Rear tires
       Parma and TRC
       Used, usable,  "greens" mostly, some "yellows"

1 Lot - Miscellaneous parts, assemblies and 'bits n pieces'

-----------------
BATTERY PACKS !!!
-----------------

6 - 4 cell battery packs, A & D 1700 SCE's
5 -    "      "      "  , Parma 1700 SCE's
5 -    "      "      "  , A & D 1400 SCR's
3 -    "      "      "  , Parma 1400 SCR's "super matched"
6 -    "      "      "  , Parma 1400 SCR's
5 -    "      "      "  , A & D 1200 SCR's
6 -    "      "      "  , Parma 1200 SCR's
6 -    "      "      "  , Parma 1200 SC's
($1,400 worth of batteries alone)

------------------
I'm quitting 1/12th scale racing.  My loss is your gain.
Selling "ALL OR NOTHING", will NOT part out.
Make an offer, you could own it all!!

Pat McWethy
P.O. Box 786
Minot, ND.  58702
  USA
(701) 839-8868 days
(701) 852-6254 evenings


-- 
Lee Jorgensen             Internet: jorgense@plains.NoDak.edu
-------------------------------------------------------------
            These are the opinions of my employer
     and does NOT reflect any personal opinion of mine.
Organization: Penn State University
Date: Thu, 10 Sep 1992 11:00:33 EDT
From: <RJF120@psuvm.psu.edu>
Newsgroups: rec.models.rc
Subject: DOESN'T ANYONE RACE OFFROAD?

ALL THAT ANYBODY EVER TALKS ABOUT IS 1/10TH AND 1/12TH SCALE ON-ROAD RACING.
WHAT ABOUT 1/10TH OFFROAD?  SURE RC10L'S ARE NICE, BUT WHEN YOU ARE ON DIRT
WITH A LARGE JUMP IN FRONT OF YOU, YOU REALLY NEED A TRUCK.  A LOSI LX-T OR
AN RC10-T.  SOMETHING THAT CAN TAKE A BEATING AND STILL COME OUT ON TOP.
ANYBODY ELSE FEEL THIS WAY?
                                        RJF120

Newsgroups: rec.models.rc