HDTenEightyP/NetNews huggingface dataset:
From: sringrose@galaxy.gov.bc.ca
Newsgroups: rec.models.rc
Subject: Re: Model Jet Motor
Date: 5 Oct 92 16:32:39 -0700
Organization: BC Systems Corporation




In article <1992Oct5.180036.459@bernina.ethz.ch>, peny@ppc.lpc.ethz.ch (Peter Nyffeler ,x4399) writes:
> 
> 3 Dyna-Jets (as used in the V-1) plans you can get from Germany
> 	VTH
> 	Verlag fuer Technik und Handwerk
> 	Postfach 1128
> 	D-7570 Baden-Baden 1
> 	Fax ..49 7221 210752
> Plan No are:	MT/R 2392
> 		MT/R 357 + MT/R 357/A (may be the best one)
> 		MT 355
> 
> They recently published a book how to build a real jet engine.
> 
> P.S Yesterday I saw 2 Dyna-Jet RC-models flying. They are very dangerous if not build and flow by experts. 
> 

> Peter


 There is a video out of a German crew flying a Mess. Komet. I believe the
video came from one of the magazines and the subject was a fly-in somewhere
in Nevada.  During the presentation of a bunch of qurter-scale planes, you
notice two men hammering posts into the runway, and stretching something 
in-between.  They then cut to the Komet, which is  quite large, and has a 
cut out nose, three men are hovering about, one sticks a probe into the nose,
the airplane jumps and you can no longer hear what the anouncer is saying.
The Komet is launched by what appears to be a very large piece of rubber
and off it roars. The camera appeared to have trouble tracking it, and the
speed when he did low passes was phenomenal.  They shut the engine down and
restarted it in flight (large bang -great gout of flame). They had a chat
with the builder and flyer afterward, and as I recall, there was substantial
amounts of titanium in the airframe and wing spars. I think that MAN did
an article on it. Anyone else recall?

Scott




Newsgroups: rec.models.rc
From: fayne@tellabs.com (Jeffrey Fayne)
Subject: Re: Cap 21 tail heavy
Organization: Tellabs, Inc., Lisle, IL
Date: Mon, 28 Sep 1992 12:43:16 GMT

In article <1992Sep23.230232.16403@bohra.cpg.oz.au> jrp@bohra.cpg.oz.au (John Pitman) writes:
>Hi 
>Recently I posted about my tail heavy GP CAP 21 .40 size - it took 11.5 oz of
>lead in the front of the cowl, AND a 4.5 oz brass nut inside the spinner to
>balance it! The stab is built up , not solid, but the fin and elevator are

I had the same problem with a .40 size GP CAP 21 that I picked up at
a local swap meet. It needed about 1 lb of nose weight to balance
with an OS .40 SF!

Rather than throw that much weight in the nose, I opted to install
my OS .61 SF instead!  The balance was right on the recommended CG.

I had absolutely no problem flying it with the .61, in fact
IMHO it was the right power/weight ratio that I was looking for.



				- Jeff

-- 
_____________________________________________________________________________
                                             
 F-14             |    _    |             | Jeffrey M. Fayne                
   Tomcat         |  /^ ^\  |             | Tellabs, Inc.   Lisle, IL  60532    
      ____________|_(  .  )_|____________ | 708-512-7726    FAX:708-852-7346
           --*/--|_| (___) |_|--\*--      | fayne@tellabs.com 
              *       O O       *     fjs | #include<StdDisclaimer.h>
_____________________________________________________________________________
From: rob@phoenix.erc.clarkson.edu (Rob Logan)
Newsgroups: rec.models.rc
Subject: Re: Nose-In Hovering
Date: 6 Oct 92 15:13:41 GMT
Article-I.D.: news.1992Oct6.151341.15556
Reply-To: rob@phoenix.erc.clarkson.edu
Organization: Clarkson University

> Would some of the experienced helicopter pilots please post or mail me
> your procedure for learning nose-in hover/forward flight?
I can do it automaticly now, but I rember my trick was repeating
outloud:  "where is it going... where is it going.." just like "low
wing" in an aircraft. then move the stick in the direction that the
heli is going/drifting.

---
Rob Logan           AMA        -----|-----   ARRL         n2qcn@k2cc.ny.usa.na
Clarkson ERC        IRCHA   *>=====[_]L)     EAA          AirBorn
Potsdam, NY 13699   PRA           -'-`-      PADI         USSA
work: 315-268-2292  fax: 315-268-6570        home: 315-265-2679
Newsgroups: rec.models.rc
From: mmcevill@mitre.org (Michael A. McEvilley)
Subject: Fuel Tank Access Hatch (was Re: Building Tips)
Organization: The MITRE Corporation
Date: Thu, 1 Oct 1992 12:47:03 GMT

In article <23480@hacgate.SCG.HAC.COM> lew@4ccvw101.scg.hac.com (Lyman 
Lew) writes:
> In article <mhart.717421230@blackjack> mhart@blackjack.dt.navy.mil 
(Michael Hart) writes:
> >Proposed Modification: There is no access hatch for the fuel tank.
> >I like the idea of being able to get to it.  Would I really be screwing
> >up by modding the fuse and putting in a hatch?  Any tips for doing
> >this?
> >
> I wouldn't cut a hole in the fuselage for fuel tank access.  

I also like having access hatches for fuel tanks, etc, and it doesnt hurt to 
modify the fuselage for this purpose.  I built two Sportster and Kaos 60's 
with access hatches cut into the fuselage (for the Kaos it was actually 
access to fuel tank and nose wheel retracts).  The same thing can be done for the Ultrasports.

What you do is build the plane per the instructions.  Then mark the area 
on the fuselage where you want the hatch to go.  Cut out the marked 
block.  What I then do is to line the cutout in the fuselage with 1/4 balsa to provide a lip for the access hatch to sit on.  I then put a dowel in the front of the hatch cover (1/8" dowel) and temporarily lay it in place.  Drill a hole through the rear of the hatch cover into the 1/4 balsa, tap the 1/4 
balsa for whatever screw thread you will use to secure the hatch (or put a blind nut in the balsa), and that's it!

One tip: if you install the 1/4 balsa lip shallow (so that the hatch 
extends beyond the rest of the fuselage when laying on the lip), you can re-sand the hatch to get a perfect contour and fit to the fuselage sides.

There is an additional benefit to having this hatch if your plane is a 
trike; you now have access to ease set up of your nosewheel steering. 

Michael
Newsgroups: rec.models.rc
From: chaffin@sab45.larc.nasa.gov (Mark Chaffin)
Subject: Miss Martha
Organization: NASA Langley Research Center, Hampton, VA  USA
Date: Thu, 1 Oct 1992 12:06:32 GMT

Does anyone out there know if the Miss Martha is still being kitted?
If so, who is kitting it.  
Otherwise, does anyone have a Miss Martha kit they would like to 
sell.  
Please e-mail or post.

Mark
chaffin@sab45.larc.nasa.gov
From: cleigh@rtoeu.enet.dec.com (Chad Leigh)
Newsgroups: rec.models.rc
Subject: Re: Building Tips (was Re: hinges)
Date: 28 Sep 92 17:39:46 GMT
Reply-To: cleigh@rtoeu.enet.dec.com
Organization: Digital Equipment Corporation, Munich Germany


In article <1992Sep28.131002.24660@tellab5.tellabs.com>, fayne@tellabs.com |>make sure you have a good amount of red in the pattern, as the
|>white/blue combination might be hard to see in the air.

My experience has shown that white/blue is ok.  Red tends to turn black
in the sky, especially on sunless days.  My pink and purple plane was
more or less all black on sunless days unless right over me

regards
Chad
Newsgroups: rec.models.rc
Subject: Re: Pulse Jet Home Brew
From: dave@bclwn.wn.bcl.co.nz (Dave Green)
Date: Thu, 01 Oct 1992 21:30:28 GMT
Organization: Business Computers Ltd, Wellington, New Zealand
X-Newsreader: Tin 1.1 PL4

re Noise ... they sure are noisy beasts, a friend and I once started one up in
a garage, the noise and vibration were unbeleivable. In fact, as I recall, the 
jet could only be run static for a minute or less as it would just overheat and
start to glow !

They were also very sensitive to being knocked - I've watched some c/l speed
models powered by pulse jet, some were launched from a dolly, others were left
to skid along the ground before taking off. The jets on the ground launch models
were very prone to cutting out if the ground run was a bit lumpy.

Dave
-- 
    _     _
 / /_) / /   / /  / Dave Green <dave@bcl.co.nz>
/ /_) / /_  / /_ /  Ph: +64 (4) 801-6716  Fax: +64 (4) 385-2752
Business Computers Ltd, Box 3236, Wellington 6000, NEW ZEALAND.
From: linkosal@klaava.Helsinki.FI (Tapio Linkosalo)
Newsgroups: rec.models.rc
Subject: Re: Removing warps
Date: 30 Sep 92 12:42:25 GMT
Organization: University of Helsinki

I dont think you could help the warped wing with covering, it could well
give you problems with changing warps in the long run.

Instead, you could try making cuts to  the D-box diagonally, allowing it
to 'stretch' when you remove the warp, and then glueing the cuts again.


Tapio Linkosalo

linkosalo@cc.helsinki.fi 
Newsgroups: rec.models.rc
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: Pulse Jet Home Brew
Organization: Indiana University
Date: Thu, 1 Oct 1992 16:34:43 GMT

In article <1992Oct1.025403.21542@iunet.ann-arbor.mi.us| ansis@iunet.ann-arbor.mi.us (ansis_upatnieks) writes:
|Dyna-jets can be bought from Curtis Dyna Products Corporation
|                             17335 U.S. HWY. 31 North
|                             P.O. Box 297
|                             Westfield, Indiana 46074
|                             Phone 317-896-2561
|                             or    317-896-3788
|
|I have two phone numbers, the first is likely from 1975, the second is
|from 1991, but I am not sure.  In any case, it is one or the other.

Don't know if they're still in business but look in Model Aviation
for the CS Engines ad. They are importing new ones from China. 

|    The Dyna-jet is a tapered tube constructed of thin stainless steel
|and aluminum, just over twenty inches in length and about two and a 
|half inches in diameter at the widest point.  They are guaranteed to
|develop at least 4 1/4 pounds of static thrust.  List price (this
|may be old) is $260.00.
|    I ran a Dyna-jet as an experiment at the local university.  We
|only got about 3 1/2 pounds of thrust in stock form with gasoline
|fuel, but there could be many reasons why we did not reach the 
|specified 4 1/4 pounds.  The noise was incredible.  Ear protection
|is an absolute necessity when running a pulse-jet!  

The racing people use mixtures of nitro + propylene oxide. The latest
rules call for 50-50 Methanol + MEK, which is why the speeds have dropped
to the 160 mph range (check out the latest Nats reports). 

Wonder how much thrust you develop with nitro..

Gasoline isn't that good a fuel, I've read. The fuel flow rate is so
small that keeping the thing running isn't that easy - this would be 
the equivalent of a "touchy" needle valve.







-- 
-------------------------------------------------------------------------------
Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS                 !
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Newsgroups: rec.models.rc
Subject: Re: Converting control line aircraft for radio control flying
Date: 2 Oct 92 20:09:12 GMT
Article-I.D.: usenet.BvIFzD.2yD
Organization: Indiana University

In article <1737@necis.UUCP> rbono@necis.UUCP (Rich) writes:

>Ok, there have been a couple of posts talking about converting a profile
>C/L ship to R/C.  I have been eyeing my Nobler for a while.  It sits there
>gathering dust (I think there is at least 1 inch of dust on it so far, its
>last flight was probably a good 20 years ago).  That is a good looking ship
>(at least I thought so).  I do need to fix a couple of holes in the covering.
>The hanger rash seems to be spreading over the years.

> So on to the burning question:  Has anyone ever converted a C/L ship to
>R/C after it had been built?  I know that I would have to rebuild the vertical
>fin and rudder, but don't know if I should make it any larger.  Also, I
>need to split the flaps and setup the control mechanism for ailerons.
>Of course, a new engine (now has a Fox .35, what else?) and a new fuel tank.

> I really don't know if I have the heart to cut into this ship.  She really
>looks nice (except for the dreaded hanger rash)!  But I would love to see
>this ship fly without being constrained by those metal leashes.


Actually, I'd leave it be and fly it C/L. C/L is enjoying a resurgence 
right now and there are old time Stunt meets all over the place. The best
way to appreciate the lines of a Nobler is sixty feet away!  8-) Even 
George Aldrich (who designed the Nobler and flies clockwise) has showed
up at a few of these meets..

For R/C I'd say build another Nobler. The nose is a little long for R/C -
I'd use a shorter nose and widen the fuselage somewhat. You'd want a lar-
ger engine that is throttleable - the old Fox Stunt doesn't come with a 
carb and would be marginal I'd think. Add the weight of the engine to the 
radio and you see why you'd want a shorter nose.

As a matter of fact, why not scale it up? A Nobler would be on the small
end of the range for R/C. Since it gets farther away the bigger it is the 
better.

Now, if you were wanting to slope glide it that would be a different 
story. I've heard that C/L stunt airplanes have the right moments for
that.




-- 
-------------------------------------------------------------------------------
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: petera@bcars630.UUCP (Peter Ashwood-Smith)
Subject: SUKOI (Byron) info wanted
Keywords: SUKOI
Organization: Bell-Northern Research, Ottawa, Canada
Date: Mon, 5 Oct 1992 15:46:05 GMT

   Anyone out there got any general comments about the larger BYRON SUKOI? I'm considering buying one and am curious about the choice of engines. I'm leaning towards the Q52s Purr/Pow but the larger A&M is also appealing. Opinions or
general experience with Byron?

   Peter
Newsgroups: rec.models.rc
From: asdch@acad2.alaska.edu
Subject: TECH TIP: RC10T front tire balancing
Organization: University of Alaska
Date: Sat, 3 Oct 1992 14:28:52 GMT

	Those raised letters may look nice (painted or not) on the side of 
the tires on the RC10T, but they throw the tire off balance. I took a Dremel 
Tool and removed them with a grinder attachment and now I have one tire almost
perfectly balanced, while I am still having probs. with the other front tire-
could this be a defect?  Previously, while spinning at a very high rpm, the
entire front end of the truck would get this incredible shaking/vibration.  
The problem does not occur on the thin front tires, only the ROAR-legal wide
front tires.  F
   The rear tires don't need to be as precise, I believe.
Dave.
Newsgroups: rec.models.rc
From: asdch@acad2.alaska.edu
Subject: Engine Destruction. Repl. parts avail?
Organization: University of Alaska
Date: Sat, 3 Oct 1992 02:23:32 GMT

	Is it possible to get replacement engine parts from the manufacturer?
I need a crankshaft for a K&B .40 and a cylinder sleeve and piston pin end cap
for an Irvine .25.  Would it be easier/cheaper to get the parts or a whole new
engine?  The shaft on the K&B bent on impact while spinnig an APC prop, and 
cap. Actually it was speed fuel, and maybe that nylon cap melted.  The motor 
ran for a while on some 5% nitro with no probs.  How could this end cap just
vanish?  When I pulled the motor apart, there was no evidence of melted plastic.Dave.
Newsgroups: rec.models.rc
From: petera@bcars630.UUCP (Peter Ashwood-Smith)
Subject: Re: Need info about UltraSport 60
Organization: Bell-Northern Research, Ottawa, Canada
Distribution: na
Date: Wed, 30 Sep 1992 13:48:30 GMT

In article <1992Sep28.142405.15242@rtsg.mot.com>, svoboda@rtsg.mot.com (David Svoboda) writes:
|> In article <Bv1GGF.GKF@storcon.uucp> paulm@storcon.UUCP (Paul Moreau) writes:
|> |
|> |  The Chipmunk and the UltraSport are deffinately two different planes.
|> |  Where the chipmunk can Lamchevak (sp?) 
|> 
|> I presume you are really asking..(this is NOT a spelling flame), the word
|> is spelled "lomcevak", and it is Czech for "headache".  :-)
|> 
|> 		Dave Svoboda, Palatine, IL

   I'm confused, I also thought that lomcevak meant headach in Czech but I have a Czech friend who says this is not so. Could it be that my pronounciation was totally out of whack or is this really not true? Anyone out there speak Czech?

   Peter Ashwood-Smith
From: bloom@inland.com
Newsgroups: rec.models.rc
Subject: Re: Need info about UltraSport 60
Date: 1 Oct 92 08:10:19 CST
Distribution: na
Organization: Inland Steel Company; East Chicago, IN

In article <1992Sep30.134830.9052@bnr.ca>, petera@bcars630.UUCP (Peter Ashwood-Smith) writes:
> |> I presume you are really asking..(this is NOT a spelling flame), the word
> |> is spelled "lomcevak", and it is Czech for "headache".  :-)
> |> 
> |> 		Dave Svoboda, Palatine, IL
> 
>    I'm confused, I also thought that lomcevak meant headach in 
>Czech but I have a Czech friend who says this is not so. 
>Could it be that my pronounciation was totally out of whack or 
>is this really not true? Anyone out there speak Czech?

The word "Lomcevak" should always be followed by a "?".  Like this:
Lomcevak?  The correct translation is :

Who stole the kishke?
Newsgroups: rec.models.rc
From: fayne@tellabs.com (Jeffrey Fayne)
Subject: Re: Building Tips (was Re: hinges)
Organization: Tellabs, Inc., Lisle, IL
Date: Mon, 28 Sep 1992 13:10:02 GMT

In article <mhart.717421230@blackjack> mhart@blackjack.dt.navy.mil (Michael Hart) writes:
>In <9209241430.AA18713@bottom.magnus.acs.ohio-state.edu> mmarks@magnus.acs.ohio-state.edu (Matthew D Marks) writes:
>
   [misc deleted]

>Went out and bought an UltraSport 60.  Now I have some questions about
>building it.
>
>
>Covering in general: I've layed out a color scheme/pattern for my US60.
>It will be somewhat similar to the pattern shown on the ultrasports in
>the advertisements, but much more air-visible colors: White base,
>with red and blue stripings/accents.  So, how is this multi-color
>monokoting done?  Do I cover the whole thing in white then lay the
>colored pieces over the white?  Just cut each piece and put on with
>overlap like a puzzle?
>
   [misc deleted]

I built a Super Sporster .60 and decided to use the Charcoal Grey
w/silver sunburst pattern that the UltraSpor has in the adds.
My recommendation is to stay away from this color scheme unless
you plan on flying on cloudless days. The plane turns black in the
air until you bank and catch the silver in the sun. I don't recall
seeing the white/blue/red combination in the UltraSport ad, but
make sure you have a good amount of red in the pattern, as the
white/blue combination might be hard to see in the air.

What I did to cover mine was to do the whole wing in the base color
and then cut up newspaper until I found a pleasing sunburst pattern
for each of the 'rays'. I then cut out the pattern monokote using
the newspaper pattern. I applied each 'ray' using a mild soap/water
solution over the base covering, squeegeeing out the excess water
and then hit it with a LOW heat setting on the iron. A varaiation
on this is to allow the applied trim 24 hours drying time before
applying the iron. I didn't have any problem heating right away
just be sure you don't boil the water under the trim, you need
very little heat. Monokote loves to stick to monokote.

BTW, I bought some of that Monokote NO-HEAT Trim solvent to try
on my next plane. Anybody try it yet?

				- Jeff
-- 
_____________________________________________________________________________
                                             
 F-14             |    _    |             | Jeffrey M. Fayne                
   Tomcat         |  /^ ^\  |             | Tellabs, Inc.   Lisle, IL  60532    
      ____________|_(  .  )_|____________ | 708-512-7726    FAX:708-852-7346
           --*/--|_| (___) |_|--\*--      | fayne@tellabs.com 
              *       O O       *     fjs | #include<StdDisclaimer.h>
_____________________________________________________________________________
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: Responsibility In Magazine Article Writing
Organization: Indiana University
Date: Fri, 2 Oct 1992 05:13:16 GMT

In article <1992Sep30.160442.18511@cbnewsd.cb.att.com> mju@cbnewsd.cb.att.com (michael.j.urban) writes:

>	Writing for CR is a full time, paid, job.  The AMA columnists all
>	have day jobs.  The AMA rag would love to consider anything you'd
>	like to submit for an article.

I'd second this one. If anyone has anything interesting to write, es-
pecially a construction article or a hint'n'tip I'd suggest writing to
MA to see if they'll pay you for it. I did a while back and wasn't diss-
apointed!  9-)





-- 
-------------------------------------------------------------------------------
Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS                 !
From: pfoss@cmsa.gmr.com (Pete Foss PO/46)
Newsgroups: rec.models.rc
Subject: Re: Kraft Radios
Date: 1 Oct 92 16:04:29 GMT
Reply-To: pfoss@cmsa.gmr.com
Organization: .................


In article 2200@neocad.com, benzene@neocad.com (Dave Bennett) writes:
>I'm getting back into the hobby after some years absence and I have
>some old Kraft radios which seem to work quite well.  Kraft went out
>of business and another company sprang up which had some supplies and
>did repair work.
>				benzene@neocad.com


Give Pete Waters a call at Kraft Midwest in Northville, MI.  He has ads in most of the model mags.
Newsgroups: rec.models.rc