HDTenEightyP/NetNews huggingface dataset:
From: Roger.Wilfong@umich.edu  (Roger Wilfong)
Subject: Re: Estes Cineroc
Date: Mon, 04 Jan 93 14:37:00 EST
Organization: UofM Hospitals
X-Newsreader: FTPNuz (DOS) v1.0

In Article <1i9pn4INNguh@transfer.stratus.com> "cdt@sw.stratus.com (C. D. Tavares)" says:
> In article <617@rml.UUCP>, jack@rml.UUCP (jack hagerty) writes:
> 
> > Bob is an avid collector and recently started the "Collectors' Closet"
> > column in AmSpam (assuming we ever get a "real" one again :^)
> 
> I understand January/February is pretty massive.
> -- 
> 
> cdt@rocket.sw.stratus.com   --If you believe that I speak for my company,
> OR cdt@vos.stratus.com        write today for my special Investors' Packet...
> 
> 
Mine came Saturday.  64 pages.  Skimming it, it looks like a 'real' magazine.
From: 161685732@vill.edu (JOE PRYSZLAK)
Newsgroups: rec.models.rockets
Subject: Launch Pad
Date: 9 Jan 93 18:14:00 GMT
Organization: Villanova University
News-Software: VAX/VMS VNEWS 1.4-b1

Here's an odd request.  I have an old Centuri Power Pad launcher I still
use.  I'm looking for the plastic piece that allows me to tilt the
launch rod, and I'm also looking for the angled blast deflector.  Anyone
know where I can get these.  Anyone have some they might want to sell???
Newsgroups: rec.models.rockets
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: FidoNet
Organization: Indiana University
Date: Mon, 4 Jan 1993 20:08:48 GMT

In article <615@rml.UUCP> jack@rml.UUCP (jack hagerty) writes:
>In article <C0943p.1n9@usenet.ucs.indiana.edu> ntaib@silver.ucs.indiana.edu (Iskandar Taib) writes:
>>Check in soc.culture.celtic. There is a post titled something like 
>>"Internet access in the UK." Surprisingly there is a part about 
>>halfway down about a company in the US that offers modem-based inter-
>>net access. Fees aren't excessive - a one-time membership fee and a 
>>monthly fee and _no_ connect time fee if you live in a "class A city".
>
>No need to get quite so esoteric. What you're describing is called "public
>access unix" and is quite common. Here in the San Francisco Bay Area there
>are several companies that do that; the best known of which are Portal,
>NetCom and the WELL. There are lots of them scattered about the country,
>many are just gloified BBS's  with an Internet connection of some sort. 
>I understand that there is a list of these kept somewhere on the network,
>but I don't know where it is other than it's in one of those sys.admin
>type groups e.g. news.announce.newgroups.

I've posted the excerpt about PSILink. Look for it in this newsgroup.




-- 
-------------------------------------------------------------------------------
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.rockets
From: rahayden@news.weeg.uiowa.edu (R Andrew Hayden)
Subject: FOR SALE:  ASTRO CAM, Magnum Kit, Misc. Stuff
Organization: University of Iowa, Iowa City, IA, USA
Date: Fri, 8 Jan 1993 18:16:00 GMT

I have several model rockets and rocket parts for sale.

-----------------------

Package 1:  Misc Stuff                  $30
        A)  15 assembled and painted rockets.  I have no idea the
        names of all of these units, although some were assembled
        from the Designer's Special Parts Assortment.  These rockts
        should be almost ready to fly.  They haven't flown in a
        couple years, though, and you should clean them up a bit to
        make sure they work properly. 

        B)  About 50% of the remaining Designers Special Parts
        Assortment.  Includes some balsa and body tubing and stuff
        to build your own weird rockets. 

        C)  And old Alpha I launch kit.  This includes the
        electronic launch system, the tower and plate, etc.  The
        actual rocket is in part A.

        Please Note:  The package cannot be broken up.  If there is
        something you don't want, let me know and I'll pitch it.  

Package 2:  Astro Cam                   $35
        This is an opened but unassembled ASTRO Cam rocket.  This
        is the rocket that mounts a camera, takes off and then take
        a photograph in the air.  It is my understanding that Estes
        has discontinued this rocket. 

Package 3:  Magnum/Operations Kit       $35
        This is an opened but unassembled complete operations kit. 
        Comes with an ignition system, launch tower, engines,
        ignighter and a Level 2/2-stage Magnum Rocket kit. 
        Essentially this is everything a person need to launch a
        rocket.  This package was never used.


Please Note:  The last two items were given to me about six months
ago.  I essentially opened them but never did anything with them. 
They are in mint condition.

These prices do not reflect shipping.  Shipping is $10 for package
1, $5 for packages 2 and 3.  If you get two packages, shipping is
equal to the highest of the two for both.  If you get all three,
shipping is waived.
 


-- 
]> I love my country                   + Robert Hayden                     <]
]> But I fear my government.           +                                   <]
]> Blind faith in your leaders, or in  +    rahayden@umaxc.weeg.uiowa.edu  <]
]> anything, will get you killed.      +    aq650@slc4.INS.CWRU.Edu        <]
Newsgroups: rec.models.rockets
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: Estes Vostok
Organization: Indiana University
Date: Tue, 12 Jan 1993 19:34:17 GMT

In article <19930111135213.Roger.Wilfong@umich.edu> Roger.Wilfong@umich.edu  (Roger Wilfong) writes:
>In Article <1993Jan11.152336.21738@cbnewsd.cb.att.com> "rjungcla@cbnewsd.cb.att.com (R. M. Jungclas)" says:
>> In article <1993Jan10.053945.5509@ennews.eas.asu.edu> elder@enuxhb.eas.asu.edu (Greg Elder) writes:
>> >The latest AmSpam has an ad from Acme Rocket Company.  They have an
>> >old Estes Russian Vostok kit for sale.  I've never seen this before, and
>> >I don't have an old catalog that shows the rocket.  Can anybody supply
>> >me with information about this kit (size, appearance, type motors it uses
>> >(A-C, or D size), etc.)?  Has anyone ever built one of these before?
>> >Thanks for whatever anybody knows.
>> 
>> The best description of the kit is "scale like" or "pseudo scale" as the
>> 4 strap-on tanks are only "profiled."  That is these tanks are reduced to
>> "flat surface" which acts as the fins for the model rocket.  The rocket
>> flies with a single A-c engine and it either BT-60 or BT-55 based.
>> 
> 
>Which brings up my idea for a new event:
> 
>   Profile Scale.
> 
>The idea for this comes from a 1/2A Baby Ring Master I used to fly as a kid, 
>and looking at a picture of the MR-3 launch.  Most of the scale drawings we 
>have are just two dimensional.  Except for a referece to the diameter of the 
>body, there is no evidence that the cross-section of the prototype is round.

Hahahahaha!

I thought only us C/L fliers were crazy enough to make profile 
models! It makes sense for C/L planes - I'm not sure how you'd
handle recovery. Perhaps eject the motor and use featherweight 
recovery like the Mosquito.



-- 
-------------------------------------------------------------------------------
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.rockets
From: j.cook@primerd.prime.com (C. James Cook)
Subject: Re: Black Brant Antennea (was Hot Glue)
Organization: Prime Computer R&D
Date: Mon, 4 Jan 1993 21:45:34 GMT

jack@rml.UUCP (jack hagerty) writes:

...<Black Brant building suggestions deleted...

> These are good suggestions, and very timely.
> 
> My problem with the antennas (antennae?) coming off was not aero forces
> but recovery snapback. There was the classic dent in the leading edge
> of the body tube and the toothpicks were ripped off *up*.
...
> I am just about
> to start building it [another], so I'll try your suggestions (I like the idea of
> using "real" metal anttenae). My only reservationg is that if you make the
> attachement of the part that breaks off stronger, it'll do more damage when
> it finally does go!
> 

On the other hand, you could just do what I did: Fly it with the coupling
containing the antenna for the first flight to prove you can do it, so to
speak.  Don't include it in flights after that.  It requires connecting
the parachute / shock cord with a snap swivel so you can remove the 
coupler from between the body tube and the nose cone, but that's it.

I have more than enough kits to build that anything I can do to avoid spending
time repairing damage is a good thing.

J
From: jsvrc@rc.rit.edu (J A Stephen Viggiano)
Newsgroups: rec.models.rockets
Subject: Re: flashbulb igniters
Date: 10 Jan 93 17:59:08 GMT
Distribution: na
Organization: RIT Research Corp

In article <9JAN199313125774@vill.edu> 161685732@vill.edu (JOE PRYSZLAK) writes:
>What the hell are flashbulb ignitors?

Flashbulbs produce lots of heat very quickly with only a tiny amount of
current. I believe the idea for using them to ignite a Centuri Sure-Shot wick
was first published by John Langford in the May (I think) 1974 _Model_
_Rocketeer_. It was an important breakthrough in cluster ignition.

Inasmuch as Centuri Sure-Shot wick is hard to get these days, most folks using
this technique substitute a piece of thermalite fuse. Don't take continuity
using a simple lamp, like in the Estes launch controller -- the lamp will let
more then enough current through to ignite several flashbulbs.

Have fun!

John Viggiano, jsvrc@rc.rit.edu
NAR 25615
Newsgroups: rec.models.rockets
From: jackson@sn.jsc.nasa.gov
Subject: Re: Aereoux
Reply-To: jackson@sn.jsc.nasa.gov
Organization: Organization, City, State, etc.
Date: Thu, 7 Jan 1993 00:52:27 GMT

A note on the motor retention "hook" on Aerotech models.
This thing is a real pain, as a scaled-up Estes 'hook' it
works more or less ok. But with the bigger diameter hp motors
it makes getting the motor in and out a problem. Worse than
that if you want to put big scratches in your reload-ables
that 'hook' will do it.
From: barrett@add.itg.ti.com
Newsgroups: rec.models.rockets
Subject: Re: Primers
Date: 5 Jan 1993 14:44:07 GMT
Organization: Texas Instruments Incorporated, Austin
NNTP-Posting-Host: powder.add.itg.ti.com

John Viggiano, jsvrc@rc.rit.edu Writes:

>>  You need to allow the primer to cure *before sanding*.  Primer that
>>has had a chance to thoroughly dry sands much better than primer applied
>>just the day before.  The sand paper gets all loaded up with gooey
>>primer dust, unless you wet-sand.  This is why I try to avoid a whole
>>lot of sanding between coats of primer.

  Yes, the sandpaper does get cloged on occasion....  However, not
sanding the primer down to the lowest point will not allow the filling
properties of the process to be realized.  I sand the primer until most
of it is gone, only the depressions will have any left.  Excpet the last
coat, which I lightly sand (400 grit and steel wool) for the smoooth
finish.  A sanding block helps, expecially with the larger models, the
soft, flexible sponge based sanders work pretty well too.

>>  I think the length of time depends upon the brand of primer you use.
>>I have always used Krylon, in white, gray (platinum, they call it), and
>>good old oxide brown.  Has anybody compared Krylon to other brands, like
>>Plasti-Kote?  Do they fully cure any faster?  Buzz, this note to you
>>bounced with a user unknown error????

I like Plasti-Kote for its filling properties.  It dries fairly fast, 2
hours and you can sand it (if the you didn't apply it too thick). Still,
an overnight wait is best.  Bondo automotive filling putty is great for
filling as well.

Stu Barrett  barrett@add.itg.ti.com
TRA#1277  NAR#4341
From: lc2b+@andrew.cmu.edu (Lawrence Curcio)
Newsgroups: rec.models.rockets
Subject: High Speed Camera
Date: 6 Jan 93 06:52:42 GMT
Article-I.D.: andrew.MfGktOO00WB285YskP
Organization: Doctoral student, Urban and Public Affairs, Carnegie Mellon, Pittsburgh, PA

Douglas Kirk, in his study of igniters, reports in AMSPAM that he used a
high-speed camera to time ignition. That is, he evidently took a movie
of the process and counted the frames. I'd like to do the same thing
with launches, timing ascent to apogee. Can anyone suggest the proper
equipment? Also, is there a way to do this with a video camera to an
accuracy of, say, .02 seconds?

Thanks in Advance,
-Larry C.
Newsgroups: rec.models.rockets
From: Roger.Wilfong@umich.edu  (Roger Wilfong)
Subject: Re: Jan _AmSpam_
Date: Mon, 11 Jan 93 12:35:00 EST
Organization: UofM Hospitals
X-Newsreader: FTPNuz (DOS) v1.0

In Article <1993Jan11.161656.25974@aio.jsc.nasa.gov> "hack@arabia.uucp (Edmund Hack)" says:
> In article <622@rml.UUCP> jack@rml.UUCP (jack hagerty) writes:
> >In article <4fH5Tn200WB2IMiWQE@andrew.cmu.edu> lc2b+@andrew.cmu.edu (Lawrence Curcio) writes:
> >>
> >>The DOWNRIGHT IGNORANT looked like it shoulda had a LOX plume comin out
> >>the side. WOW!
> >[stuff deleted]
> >Too bad they didn't have a liftoff shot.
> 
> According to CIS, the new HPR mag will have a liftoff shot and should be
> arriving "in a few weeks".  I understand that good liftoff shots were
> hard to come by, as the spectators were about a mile away from the pad.
 
I've seen Earl Cagle's LDRS-XI video.  It includes footage of the flight 
from several miles away.  The only thing is, if you don't look at the 
earlier close-up footage of the preparation, it just looks like a model 
rocket launch - in slow motion.
From: jack@rml.UUCP (jack hagerty)
Newsgroups: rec.models.rockets
Subject: Re: FidoNet
Date: 3 Jan 93 22:26:36 GMT
Reply-To: jack@rml.UUCP (jack hagerty)
Organization: Robotic Midwives, Ltd.

In article <C0943p.1n9@usenet.ucs.indiana.edu> ntaib@silver.ucs.indiana.edu (Iskandar Taib) writes:
>Check in soc.culture.celtic. There is a post titled something like 
>"Internet access in the UK." Surprisingly there is a part about 
>halfway down about a company in the US that offers modem-based inter-
>net access. Fees aren't excessive - a one-time membership fee and a 
>monthly fee and _no_ connect time fee if you live in a "class A city".

No need to get quite so esoteric. What you're describing is called "public
access unix" and is quite common. Here in the San Francisco Bay Area there
are several companies that do that; the best known of which are Portal,
NetCom and the WELL. There are lots of them scattered about the country,
many are just gloified BBS's  with an Internet connection of some sort. 
I understand that there is a list of these kept somewhere on the network,
but I don't know where it is other than it's in one of those sys.admin
type groups e.g. news.announce.newgroups.

- Jack

=============================================================================
||Jack Hagerty, Robotic Midwives, Ltd.                 jack@rml.com        ||
||Livermore, CA		           NOTE! New, improved address! ^^^        ||
||(510) 455-1143	            (old ones will still work)             ||
||-------------------------------------------------------------------------||
||          " 'Tis a coward I am, but I'll hold your coat"                 ||
||                  - Barry Fitzgerald, _How Green Was My Valley_          ||
=============================================================================
Newsgroups: rec.models.rockets
From: jsvrc@rc.rit.edu (J A Stephen Viggiano)
Subject: Profile Scale (Was: Re: Estes Vostok)
Organization: RIT Research Corp
Distribution: usa
Date: Mon, 11 Jan 1993 20:07:56 GMT

In article <19930111135213.Roger.Wilfong@umich.edu> Roger.Wilfong@umich.edu  (Roger Wilfong) writes:
 
>Which brings up my idea for a new event:
> 
>   Profile Scale.
 
. . . .
 
>In this event, you'd build a flat model.  Alright, it doesn't have to be 
>flat, but it doesn't have a round cross-section.  You could build the model 
>with a square or cruciform (or any other non-round) cross-section.  
>The model would have to conform to the scale documentation.  This would be 
>done by looking at the model from the same view as the drawing or photo.  
> 
>There would be problems to solve to make this work.  For instance, you could 
>make a flat or cruciform model.  You would need to enclose the recovery 
>system and the motor(s) in the model.  You would also need to make it stable 
>(I have not given much thought to the stability of a model that is all fin).

Well, the CP of a rectangle is 1/4 of the way from the front (what would
otherwise be the nose cone) to the back, so you'd need a hell of a lot of
nose weight.

>Any thought on this?

Yes. We'd probably get birds that looked as crappy as that old Estes Vostok.

John Viggiano, jsvrc@rc.rit.edu
NAR 25615
Newsgroups: rec.models.rockets
From: jackson@sn.jsc.nasa.gov
Subject: Re: Inertial guidance
Reply-To: jackson@sn.jsc.nasa.gov
Organization: Organization, City, State, etc.
Date: Mon, 4 Jan 1993 11:16:21 GMT


>Has anyone besides myself (this is my wife's account, so I'm speaking 
>through her for now) done any work on K engine-sized gyrocompass/inertia 
>guidance?  I've been thinking along the lines of a solid state 2 axis 
>hall effect sensor, coupled to a CO2-powered servo system, linked through 
>a high speed processor.
> 
>My wife thinks I'm nuts, however I'd appreciate any input along these 
>lines, especially on test jigs, related math and IBM software for 
>simulation.
> 
>Nothing special, mind you, but I suspect I'm recreating the wheel, and 
>there must be an underemployed aerospace engineer with time on his/her 
>hands to get into this project.  :-P
> 
>I'm doing all this with a scaled-down version of the V2 in mind, which 
>will not require guide lugs for launch and for control of high-speed 
>flight.  
> 
>The specs are: 1/6 scale, weight @ 30 lbs, engine ISP RMS K-550.  
> 
>On board single-chip computers, UHF telemetry, amateur TV, inertial 
>guidance.
> 
>..........................................................
There have been people of late doing sun-seek guidance with good
success. Look up recent issues of High Power Rocketry.
As for inertial guidance for HP model rockets what I have heard
is that it has been done tho I dont know where it is documented.
I should be possible with the little (almost-inexpensive) gyros
they have for model helicopters and small accelerometers that
are available nowadays. (I understand from Tom Billings , who
owns Adept Rocketry, makers of exelent altimeters, that someone is
building a thrust vectored model rocket.)
Tho with a K550 you might give pause for thought , that is only a
3.1 sec burn so you are going to be declerating most of the way
and passive aerosurface control is likely better than active.
If you had a K250 or longer burning motor you will get better
bite on the air. Or wait until there are longer burining reloads.
From: miles@emx.cc.utexas.edu (Miles Abernathy)
Newsgroups: rec.models.rockets
Subject: BIG Balloon, TX -> FL, Jan. 11
Date: 7 Jan 93 02:32:09 GMT
Distribution: usa
Organization: Univ. of Texas
X-UserAgent: Nuntius v1.1.1d10
X-XXMessage-ID: <A770F2118B03CC6D@slip-109.ots.utexas.edu>
X-XXDate: Wed, 6 Jan 93 20:31:13 GMT

Forwarded from packet radio:

From: WA5ZIB@FE6CNB.#SETX.TX.USA.NA
To  : ALL@TEXAS

Utah comes to Texas to launch a BIG one!

The scientific/education balloon group from Utah State University
will arrive in Houston on Saturday January 9, 1993.  The group
from Logan, Utah, will be in town to launch a 50-lb payload using
a super-pressure nylon balloon (230,000 cu. ft.).  The mission
plans are to fly the package across the Gulf at 110,000 feet.
The group coordinator is Gil Moore N7YTK.  Launch is scheduled
for 7 AM on Monday January 10th from the League City South Shore
Harbor Resort and Convention Center.

The package carries several experimental payloads including a four-
channel UV ozone radiometer, an aircraft radar transponder (1130-
1190 MHz), temperature sensors and a GPS receiver.  Ham frequency
beacons include HF at 28.322 (250 mW by WB8ELK) and VHF at 144.28
and 144.30 MHz.  Packet telemetry will be sent on 145.75 MHz and
video from the on-board camera will be sent on 434 MHz.

Predictions currently call for 60-70 knot winds at 110,000 feet
from the west to the east.  Several stations in Florida are prepared
to send cut-down commands to the package.  The group from Utah has
been able to cut down payloads over Wyoming with 100 yard target
accuracy (GPS helps!).

HF (amateur radio) nets will occur on one of three frequencies depending
on the band
conditions.  Check 3858, 7258 and 14258 kHz the morning of the launch.
The Utah chase van (TX to FL) will use one of these frequencies and
the callsign W7LPH.

Don't miss this fantastic opportunity to see a BIG ham balloon go up!

de Andy WA5ZIB
Newsgroups: rec.models.rockets
From: cbusch@ub.d.umn.edu (Chris)
Newsgroups: rec.models.rockets
Subject: Companies and Engines
Date: 7 Jan 93 23:26:45 GMT
Organization: University of Minnesota, Duluth
NNTP-Posting-Host: ub.d.umn.edu

How many companies are in the sale of model rockets. Apparently, I only
found Estes out of Colorado (?)  Also the biggest engine that I have
ever found (sold) were "D"s, however, I have seen mention to E,F, and
even G sizes.  How does get a hold of them?  Illegal in Minnesota?
	Also, I noticed in Popular Mechanics engine plans for sale with
50lbs of thrust(!), what is the deal with those?

Thanx

--
-=-=-=-=-=-=-=-=-= Chris Busch     cbusch@ub.d.umn.edu =-=-=-=-=-=-=-=-=-=-
 C(o_o))        _                        "The use of COBOL cripples the
   (=)         (_ -|- -|- is the         mind; its teaching should, 
  --|--        language of choice.       therefore, be reguarded as a
   /^\      Protest the use of BASIC!    criminal offense." -E.W. Dijkstra
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Wanted: Cheap run-of-the-mill standard VGA board. 
Wanted: RC airplane engines, radios, planes, etc
Newsgroups: rec.models.rockets
From: Roger.Wilfong@umich.edu  (Roger Wilfong)
Subject: Re: 8' rockets..
Date: Mon, 04 Jan 93 06:23:00 EST
Organization: UofM Hospitals
X-Newsreader: FTPNuz (DOS) v1.0

In Article <23DEC92.14458182.0041@music.mus.polymtl.ca> "CT80@music.mus.polymtl.ca (Steph)" says:
> 
> I have never heard of CAR.  What does it stand for?  I'll get in touch
> with them anyway, you never know .. thanks!
 
CAR = Canadian Association of Rocketry.  I'll let one of the CAR members 
explain the scope of their rocketry activities.
 
I forgot to look up the addresses (sorry).  However, you can reach Taras 
Tataryn at CompuServe.  His user ID is 70711.133.
Newsgroups: rec.models.rockets