HDTenEightyP/NetNews huggingface dataset:
From: pfeiffer@nmsu.edu (Joe Pfeiffer)
Subject: Re: What's a Good 12V Battery?
Organization: NMSU Computer Science
	<1ich9tINNi3t@transfer.stratus.com>
Date: Wed, 6 Jan 1993 16:05:44 GMT

In article <1ich9tINNi3t@transfer.stratus.com> cdt@sw.stratus.com (C. D. Tavares) writes:

   In article <1993Jan5.010350.24797@ennews.eas.asu.edu>, elder@enuxhb.eas.asu.edu (Greg Elder) writes:
   > What I would like to know is what is the
   > best/inexpensive 12V battery to use with the launch system? 

   The one in your car is, overall, the cheapest one.  Go to Radio Shack
   and buy a cigarette lighter plug.  Solder some #14 or better wire onto
   it and connect it to your launch system.  Doesn't work for relay systems
   of course, but using that sort of stuff assumes price isn't much of a
   consideration to start with.

I'd change this recommendation just a bit:  I find it more convenient
to use jumper cable connectors on the battery posts.  Drive up, pop
the hood, there's your power source...  easier than snaking around
back into the interior.  One of my wunnathesedays is installing some
welder's power connectors in my truck so the cables are easier to hook up.

While the Easterners can probably reply to this with horror stories
involving five mile hikes after leaving the car before getting to the
actual launch site (which, in these stories, is generally about 25
feet on a side and the largest chunk of land in over 500 square
miles), I see that Greg is in Arizona, so his launch sites are
probably about as open as mine (hundreds of acres of open land here on
campus).

-Joe.
Newsgroups: rec.models.rockets
From: tes@gothamcity.uucp (Thomas E. Smith [LORAL])
Subject: Aereoux trouble?
Organization: Software Technology Branch - NASA/Johnson Space Center
Date: Wed, 6 Jan 1993 14:58:32 GMT


I built an Aereoux rocket a little while ago, and had a couple of good launches
out of it.  The rocket is supposed to get up to about 3000 ft which is just
out of visual range for me, but I could still see the parachute deploy.  Well,
the last time I flew it, I lost sight of it and never saw the chute, or the 
rocket again. For all I know it went into orbit :) (I launched it into the
wind, but without the chute it didn't fall any where near me.) The rocket
uses the coiled metal (what's the proper name for this?) to cool the exhaust
that will pop the chute. I think that it may have blocked the air from going
through somehow. 

Since I am re-building the Aereoux I was wondering if any one has had the same
trouble with the rocket or the coiled metal.

Thanks for any help.

Tom
-- 
____________________________________________________________________________
| It's not my damn planet Monkey Boy!  | Tom E. Smith                      |
|                       Dr. Lizardo    | tes@gothamcity.jsc.nasa.gov       |
----------------------------------------------------------------------------
Newsgroups: rec.models.rockets
From: dlm@unislc.uucp (Dennis McCurdy)
Subject: Rocket Altimeter
X-Newsreader: TIN [version 1.1 PL6]
Organization: Unisys Corporation SLC
Date: Thu, 7 Jan 1993 22:10:40 GMT


Hi, folks! I'm building my first HPR (well, ok its uses only an 
F or G engine, but its big to me) and in addition I am building
the rocket altimeter that was published in an October '90 issue
of Radio Electronics (currently Electronics Now). I would like to
get a listing of the source code for the 1802 processor, but the
BBS for Radio Electronics doesn't have it listed anymore. So, I
was wondering if anyone out there that might of built the altimeter
would be kind enough to send me a copy of the program? It would
save me a lot of work figuring out the object code and there is 
a strong possibility that I would like to make changes and experiment.

Thanx,

-- 
Dennis L. McCurdy          |
 dlm@unislc                |
 dlm@unislc.slc.unisys.com |
Newsgroups: rec.models.rockets
From: jsivier@ux1.cso.uiuc.edu (Jonathon Sivier )
Subject: Re: Aereoux trouble?
Organization: University of Illinois at Urbana
Date: Wed, 6 Jan 1993 21:58:58 GMT

jackson@sn.jsc.nasa.gov writes:

>On the aerotech metal mesh cooler problem.
>Yes I have heard other people complain of this , except it
>is usually after more than 10 or 15 flights. The theory I
>have heard is that the mesh becomes clogged and/or corrorded.

   The instructions for the LOC ejection baffle (which is similar to the
Aerotech, only the metal mesh seems much sturdier) say to clean the mesh every
10 flights.  The method is to use a pin attached to a dowel to poke the mesh
from the rear to loosen the crap that gets lodged in it by the ejection charge.
Perhaps something like this also needs to be done with the Aerotech baffle.

Jonathan

---------------------------------------------------------------------------
|  Jonathan Sivier               |  Secretary, Central Illinois Aerospace |
|  jsivier@ux1.cso.uiuc.edu      |  NAR #56437                            |
|  Flight Simulation Lab         |  Tripoli #1906                         |
|  Beckman Institute             |  Home Address:                         |
|  405 N. Mathews                |    5 The Summit                        |
|  Urbana, IL  61801             |    Champaign, IL 61820                 |
|  217/244-1923                  |    217/359-8225                        |
---------------------------------------------------------------------------
Newsgroups: rec.models.rockets
From: Roger.Wilfong@umich.edu  (Roger Wilfong)
Subject: Re: Down Right Ignorant
Date: Tue, 12 Jan 93 05:46:00 EST
Organization: UofM Hospitals
X-Newsreader: FTPNuz (DOS) v1.0

In Article <1isscvINNfmm@cuda.add.itg.ti.com> "barrett@add.itg.ti.com" says:
> Edmund Hack writes:
> 
> >>  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.
> 
> Not me! I was 100 yards away and is was awesome!
> 
> My video DID NOT look like a small model rocket in slow motion.  It
> looked like a damn big rocket making ALOT of noise and smoke.  Just to
> calibrate some of you; they used a J275 as the ejection pyro!!  900 lbs
> went 2500' into the air.
> 
> I get shivers just thinking about it.  Black Rock is the best.
> 
 
Any chance that video is going to be available?
Newsgroups: rec.models.rockets
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: Jan _AmSpam_
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Thu, 7 Jan 1993 20:09:52 GMT

lc2b+@andrew.cmu.edu (Lawrence Curcio) writes:
: I too wish to comment favorably on the January AmSpam. Part of the
: improvement may have been illusion (e.g.; absence makes the heart grow
: fonder and part of the thickness was the calendar in the middle), but if
: so, it sure made a chump outa me!

When did it get mailed? I have not yet received my copy.

Bill
From: cdt@sw.stratus.com (C. D. Tavares)
Newsgroups: rec.models.rockets
Subject: Re: hot glue
Date: 4 Jan 1993 16:46:15 GMT
Organization: Stratus Computer, Inc.
Distribution: world
NNTP-Posting-Host: rocket.sw.stratus.com

In article <1992Dec31.224302.1852@primerd.prime.com>, J.Cook@ENS.Prime.COM (Jim Cook) writes:
> In article <1hvn2iINN417@transfer.stratus.com> det@bigbootay.sw.stratus.com
> (David Toland) writes:

> >I believe him!  His models don't come apart very often, ...

> That's because NAR trustees don't build them very often.  
> Helps with your batting average.

The secret is to let your primer coats season for at least 9 months.
-- 

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...
From: paul@taniwha.UUCP (Paul Campbell)
Newsgroups: rec.models.rockets
Subject: Re: Jan _AmSpam_
Date: 11 Jan 93 21:42:32 GMT
Organization: Taniwha Systems Design

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!

>Too bad they didn't have a liftoff shot.

Well you had to be there ..... even from a few miles away it was a blast
everyone just went 'WOW!'. Photos and videotape I've seen since then really
don't do it justice ....

"Downright Ignorant" was of course an up-scaled LOC Esoteric .... producing
up-scaled Estes kits has become very common in the HPR world recently ....
I guess LOC kits are next - maybe we'll see 50ft LOC Magnums and 80ft
Bruisers next :-)


	Paul

-- 
Paul Campbell    UUCP: ..!mtxinu!taniwha!paul     AppleLink: CAMPBELL.P
"Finally after much thought he tied a dollar bill to the top of the tree, it
seemed to fit - after all it was the premier capitalist holiday, besides after
the 'fall' of communism a star didn't seem appropriate anymore ..."
From: buzz@rsd.dl.nec.com (Buzz McDermott)
Newsgroups: rec.models.rockets
Subject: Jan _AmSpam_
Date: 6 Jan 93 23:46:10 GMT
Organization: NEC America, Radio Software Dept

Those who haven't already done so, go find someone with the latest _AmSpam_
and check out the picture of 'Down Right Ignorant' on page 4.  Not your
average model rocket!!

This latest issue is the best I've seen in the last 2 years.  If the rest of
the year comes anywhere close to this issue it will have marked a significant
improvement in the mag.

================================================================================
= Buzz McDermott                Disclaimer: I speak for no one but myself, and =
= buzz@rsd.dl.nec.com                       anyone who listens to anything I   =
= NAR   13559                               have to say deserves whatever they =
= TRA    1785                               get!!                              =
================================================================================
Newsgroups: rec.models.rockets
From: soc1070                         
Subject: Timing models from liftoff to apogee
News-Software: VAX/VMS VNEWS 1.41    
Organization: University of Minnesota CIS
Date: Tue, 12 Jan 1993 21:22:00 GMT

I was looking over the docs for a small FM xmitter I have for rockets
and I noticed that is says it can take many forms of sensors, including
a microphone "to transmit the sounds of filght". This might be something
that could be used either by itself or with a camera. I would think
that by recording the transmission, you would be able to follow the 
sequence of events from ingnition to ejection without too much trouble.

And, you could time those events for a time/flight profile. 

------
Tim Harincar				A skunk is better company than
soc1070@vx.cis.umn.edu			someone who prides themselves on
 					being frank. -Lazerus Long
From: 161685732@vill.edu (JOE PRYSZLAK)
Newsgroups: rec.models.rockets
Subject: flashbulb igniters
Date: 9 Jan 93 18:12:00 GMT
Organization: Villanova University
News-Software: VAX/VMS VNEWS 1.4-b1

What the hell are flashbulb ignitors?  I've heard them mentioned, but have
no clue what they are.  I have a feeling that you can make these little
boys yourself, but again I'm clueless as to anything.  Any help would be
appreciated.....

from Yet Another Cluesless Born Again Rocketeer......
Newsgroups: rec.models.rockets
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Hello and finless tec
Date: Tue, 5 Jan 1993 05:03:29 GMT
Organization: U of Toronto Zoology

In article <19930104075753.Roger.Wilfong@umich.edu> Roger.Wilfong@umich.edu  (Roger Wilfong) writes:
>> OK.. so what was the story behind the real Westar? ...
> 
>It was a communication satellite launched from the shuttle payload bay...
>... There is a switch on the side 
>of the Westar that is supposed to be tripped as it leaves the shuttle.  This 
>switch starts the sequencer that ends with the satellite reaching GSO.  For 
>some reason, the switch did not trip and the Westar was stranded in LEO.  
>The shuttle crew made an attempt to 'swat' the switch...
>... recovered in a later shuttle flight, returned to Earth, refurbished and 
>relaunched.

This actually confuses two different satellites.

The Westar in question worked fine up to and including perigee motor
ignition and the beginnings of the burn.  What happened then is slightly
unclear, but the most probable sequence is massive structural failure of
the motor nozzle, resulting in a sharp pressure drop in the motor that
extinguished the propellant.  This happened to two different satellites
(using the same brand of perigee motor) at the same time, the other one
being a Palapa owned by Indonesia.  They were eventually maneuvered down
to a lower orbit for a shuttle mission that retrieved them both.  They
were refurbished and relaunched (on expendables).

The one whose sequencer electronics failed was a Leasat, aka Syncom.
This was a different and rather larger bird, using a "Frisbee" deployment
method (no spin table).  The switch did trip; the problem was elsewhere.
It was repaired in orbit by a later shuttle mission, flew its maneuvers
successfully, and is now in operational service.
-- 
"God willing... we shall return."       | Henry Spencer @ U of Toronto Zoology
       -Gene Cernan, the Moon, Dec 1972 |  henry@zoo.toronto.edu  utzoo!henry
From: jack@rml.UUCP (jack hagerty)
Newsgroups: rec.models.rockets
Subject: Re: Jan _AmSpam_
Date: 10 Jan 93 00:37:08 GMT
Reply-To: jack@rml.UUCP (jack hagerty)
Organization: Robotic Midwives, Ltd.

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!

That was *exactly* my reaction! Looking at that photo, the mind does 
one of those "baseline shifts" where I was no longer looking as some
folks and their "hobby" rocket, but it now looked like all of those
old historic photos of White Sands in the late '40s and '50s. The only
thing missing was that the people should have been wearing Army fatigues
or jumpsuits with "Douglas Aircraft" on the back :-)

Too bad they didn't have a liftoff shot.

- 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_          ||
=============================================================================
From: iqv@vax5.cit.cornell.edu
Newsgroups: rec.models.rockets
Subject: v1 rocket
Date: 12 Jan 93 23:09:21 EST
Distribution: rec
Organization: Cornell University

I saw a movie called "operation crossbow" (about spies in Hitler's rocket
plants).  I was thinking about trying to build a v1, and was wondering if it's 
been done.  anybody know about it (and be willing to share info with me?)
It seems like a model rocket version would be unstable.

				david sebba

Newsgroups: rec.models.rockets
From: j.cook@primerd.prime.com (C. James Cook)
Subject: Re: Sanding Primer (Was Re: hot glue)
Organization: ComputerVision Services
Date: Tue, 5 Jan 1993 18:45:29 GMT

jsvrc@rc.rit.edu (J A Stephen Viggiano) writes:
> 
> 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?
> 

I've used Krylon.  I've also used Black Baron primer which is epoxy based and
comes in spray cans.  It cures in a day (or less) and does not load up your
sandpaper.  I do not know if it is compatible with Krylon and I do not know
if you can sand it to as smooth a finish as Krylon.  Some experimentation is
in order.

Jim

Newsgroups: rec.models.rockets
From: Roger.Wilfong@umich.edu  (Roger Wilfong)
Subject: Re: Estes Vostok
Date: Mon, 11 Jan 93 12:52:00 EST
Organization: UofM Hospitals
X-Newsreader: FTPNuz (DOS) v1.0

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.
 
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).
Any thought on this?
From: tes@gothamcity.uucp (Thomas E. Smith [LORAL])
Subject: Re: What's a Good 12V Battery?
Organization: Software Technology Branch - NASA/Johnson Space Center
Date: Wed, 6 Jan 1993 15:05:34 GMT


Greg Edler writes:
>I'm slowly oving up to larger rockets and purchased an Aerotech
>Initiator Systems Package.  What I would like to know is what is the
>best/inexpensive 12V battery to use with the launch system?  I saw
>some small motorcycle batteries at a store today for around $19.00;
>however, they aren't initially charged.  I'd have to spend another
>$30-$40 to buy a battery charging system.  Is there a less expensive
>route I could take?  Are there 12V dry cell batteries?  (You can
>probably tell that I am "battery illiterate".)

You can either hook it up to your car battery, or since I couldn't bring my
car any where near the launch site, use two cheap 6 volt batteries wired
together.

                                                          Tom Smith

-- 
____________________________________________________________________________
| It's not my damn planet Monkey Boy!  | Tom E. Smith                      |
|                       Dr. Lizardo    | tes@gothamcity.jsc.nasa.gov       |
----------------------------------------------------------------------------
From: drunen@nucleus.ps.uci.edu (Eric Van Drunen)
Subject: FAQ, Aereoux, and Altimeter
Newsgroups: rec.models.rockets
Organization: University of California, Irvine
Date: 8 Jan 93 20:38:14 GMT

First, I'd like to say that the FAQ has been extremely helpful for me in re-entering model rocketry (though they don't seem like models anymore!).
I just built a Aero Mustang, and the tips on finishing and construction were especially helpful.  Also, the FAQ brought me up to date with the latest methods, products and technologies.

Speaking of the cooling mesh, my beloved rocket pranged on its third flight.  I think it was due more to a mispacked reload than the mesh.  Since I rebuilt it, I'll definitely be on the lookout for the problem.  It would be helpful if the mesh was 'mounted' on a stick or something to keep it from packing together.

I have a catalog for Transolve.  They have a newer altimeter than the one in Radio Electronics, which is also cheaper.  Get in contact with them.

Finally, I called Vulcan Systems for a catalog or information, and was told "We're not into model rocketry anymore." ?

Newsgroups: rec.models.rockets
From: tes@gothamcity.uucp (Thomas E. Smith [LORAL])
Subject: Re: BIG Balloon, TX -> FL, Jan. 11
Organization: Software Technology Branch - NASA/Johnson Space Center
Distribution: usa
Date: Thu, 7 Jan 1993 13:10:15 GMT


Going to launch the balloon in League City Texas? Ha! Good luck, that's where
I live. If I understand the weather requirements for launching a balloon there
won't be a good day for a few months. It's always foggy, or raining, or just
plain overcast, but never, never a clear calm day.

But I wish you all the luck in the world anyway :)


                                                   Tom Smith

-- 
____________________________________________________________________________
| It's not my damn planet Monkey Boy!  | Tom E. Smith                      |
|                       Dr. Lizardo    | tes@gothamcity.jsc.nasa.gov       |
----------------------------------------------------------------------------
Newsgroups: rec.models.rockets
From: hrbob@ixstar.ih.att.com (R.E. Wiersbe)
Subject: Old Motors
Summary: I do love finding old stuff!
Originator: news@cbnewsb.cb.att.com
Organization: AT&T Bell Laboratories
Distribution: usa
Date: Tue, 12 Jan 1993 21:35:32 GMT

I discovered a box of old Estes motors stuffed away in the shelves of a hobby
shop the other day, the kind that came in the diamond shaped boxes. There were
A3-0T's from 1976, 1/2A6-0's from 1973 (20 years old!), and 1/2A6-4's from 1974.

The price? $1.40 for the 1/2A's, $2.05 for the A3-0T's. I had to pick some up
for "old times sake". Does anyone remember when they stopped making these
motors?

Bob Wiersbe	hrbob@ihlpb.att.com	NAR# 44588
From: cdt@sw.stratus.com (C. D. Tavares)
Newsgroups: rec.models.rockets
Subject: Re: Old Motors
Date: 13 Jan 1993 00:07:10 GMT
Organization: Stratus Computer, Inc.
Distribution: usa
NNTP-Posting-Host: rocket.sw.stratus.com

In article <1993Jan12.213532.28427@cbfsb.cb.att.com>, hrbob@ixstar.ih.att.com (R.E. Wiersbe) writes:
> I discovered a box of old Estes motors stuffed away in the shelves of a hobby
> shop the other day, the kind that came in the diamond shaped boxes. There were
> A3-0T's from 1976, 1/2A6-0's from 1973 (20 years old!), and 1/2A6-4's from 1974.
> 
> The price? $1.40 for the 1/2A's, $2.05 for the A3-0T's. I had to pick some up
> for "old times sake". Does anyone remember when they stopped making these
> motors?

What?  They stopped?

I really gotta fly more.
-- 

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...

Newsgroups: rec.models.rockets
From: jackson@sn.jsc.nasa.gov
Subject: Re: Aereoux trouble?
Reply-To: jackson@sn.jsc.nasa.gov
Organization: Organization, City, State, etc.
Date: Wed, 6 Jan 1993 19:41:27 GMT

One the aerotech metal mesh cooler problem.
Yes I have heard other people complain of this , except it
is usually after more than 10 or 15 flights. The theory I
have heard is that the mesh becomes clogged and/or corrorded.
Aerotech says to strech the thing before placement but this
apparently works only for a while. I dont know what Aerotech's
response to this has been, that is if they have heard of it.
....
Sometimes I have made the Aerotech models without the thrust
ring and the motor holder (just taping the motors in the 
convential manner) so it was possible to replace the mesh
with a Choreboy bought at the store.
....

Newsgroups: rec.models.rockets