steam boat boiler plan wanted

[biggles]

Hi I would like to make a model steamboat upright boiler. The size of which
would be
approximately 2.5 x 6 inch (ish) to run a twin double acting engine that I
have now purchased from e-bay, but
cannot find a source of plans or materials to do the job.
can someone help me with a plan or information on this.
Thank you for you time
Biggles

[Kevin R]

1 thing you need to ask your self are you capable of making one ?you cannot
just stick a few bits of metal together with glue, you will need at least a
gas blowlamp if not a gas torch and as far as I know it will need to have a
boiler inspection certificate before you can use it in public, they can be
dangerous if not used and constructed correctly
"biggles" <pstainton2@lineone.net> wrote in message
news:4192a96e$0$12313$cc9e4d1f@news.dial.pipex.com ...
> Hi I would like to make a model steamboat upright boiler. The size of
> which
> would be
> approximately 2.5 x 6 inch (ish) to run a twin double acting engine that I
> have now purchased from e-bay, but
> cannot find a source of plans or materials to do the job.
> can someone help me with a plan or information on this.
> Thank you for you time
> Biggles
>
>

[biggles]

"Kevin R" <dontemailme@ntlworld.com> wrote in message
news:OT%kd.1059$Xc3.809@newsfe3-gui.ntli.net...
> 1 thing you need to ask your self are you capable of making one ?you
cannot
> just stick a few bits of metal together with glue, you will need at least
a
> gas blowlamp if not a gas torch and as far as I know it will need to have
a
> boiler inspection certificate before you can use it in public, they can be
> dangerous if not used and constructed correctly
> "biggles" <pstainton2@lineone.net> wrote in message
> news:4192a96e$0$12313$cc9e4d1f@news.dial.pipex.com ...

Thank you for your concern over the safety of the boiler. You are correct in
your statement regarding a boiler safety check, which I have already looked
into. It would appear that some modellers take safety very seriously (very
good) whilst some ignore the rules over safety checks (very negligent) it
would also appear that safety checks should be carried out bi-yearly (that
is once every two years) whether it is used or not and in some clubs there
are qualified members who undertake such duties. As a radio control plane
modeller of some 35 years, I have designed and built a great number of
unusual models, and as a former chairman of the Trent model flying club I
take safety to it's extreme. As for my skills in fabrication I have
completed two scratch built triumph specials (not toy cars or kit cars)
which are both road legal and on the road, these to can be dangerous also if
not used and constructed correctly.
I have already drawn up plans for a boiler but the reason I asked for a
working plan was to short cut the experimental stages so that I could build
the boiler and send it for checking and get on with the model.
Regards Biggles

[Ekkehard =?UTF-8?B?S3LDtmdlcg==?=]

hello, i am a steam modeller from germany
sorry for my poor english, but i think, you
should look for an older book from Mr.Harris
about "Model Boiler Making". It includes a
good quantity of drawings, calculating boilers
and skillfull handling of metall.
Please try Tee-Publishing:
http://www.fotec.co.uk/mehs/tee/
There you will find it. Hope it helps.
If you need more info, so drop me a mail to:
eddy@dawa.de

bye and have a good time

- -
eddy

[Biggles]

Hi Eddy,
Thank you for your reply I have looked at the link that you sent and I think that it will give me the information that I need.
In my local model shop there is a kit to build a steam boiler but it is a bit small for what I need.
Have you built a boiler? If you have did you have problems.

Your English is much better than my German! ;)
Kind regards
Pete

[Ekkehard =?UTF-8?B?S3LDtmdlcg==?=]

Biggles wrote:

> Hi Eddy,
_______________
> Have you built a boiler? If you have did you have problems.
________________
Hi
Two questions and two answers! Yes and No.
All the boilers, i use in my steambotats, are calculated and made by
myself. My profession is mechanical engineer and so is there no
problem. The steps you have to do, is first, to calculate the steam-
consumption of your engine. Considering the volume of one stroke, the
number of the cylinders, the avereage pressure, the speed of
revolutions, the efficiency etc. Everything is shown in Harri's book.
Next, after knowing the result, you are able to calculate the boiler
dimensions, the needed size of the heat transfer surface, the water
volume, the thickness of the pipes and of the jacket and the bottoms
on each end, according the local rules (may be ASME) i think. The
general way is just as shown in Harri's book. Respect the allowed
strength of the used materials i.e. copper, brass or perhaps
stainless steel.
Here in germany the rules say, that you have to make finally a
performance test with a testing pressure 30% higher than the nominal
pressure and not much higher. It ist not allowed to use compressed
air for this test. Only could water is allowed to perform this test.
The reason for limiting the testing pressure is, that otherwise there
may arise little micro cracks especially in the silver soldered
connection seams. Dont forget! 30% higher is enough (according our
geman rules) I dont know if modellboilers with a product from total
volume multiplied with the noiminal pressure are a category which
must be checked according ASME. I think you will be able to find it
out. May be, that there in your area are steam enthusiats which will
give some assistance to you. If you are not experienced in silver
soldering or you have not the tools to do this work, then visit your
local plumber and let him do the work. Dont forget connection flanges
for all important parts. man steam valve, security valve, feed
checkvalve, wistle, water gauge,filling plough, manometer etc.
After all dont forget an good thermal insulation.

bye and have a lot of fun
- -
eddy

[Roy]

In message <Biggles.1fw48c@rcgroups.com>, Biggles
<Biggles.1fw48c@rcgroups.com> writes

>In my local model shop there is a kit to build a steam boiler but it is
>a bit small for what I need.
>Have you built a boiler? If you have did you have problems.

Cheddar models do materials and drawing kits for model boat boilers and
in fact the Pegasus Boiler is quite large. See:-

HTTP://www.Modelsteam.co.uk

For further info

Cheers.

--
Roy

[pete stainton]

thank you to all who replyed i will post again maybe in the new year with my progress
have a good xmas and new year
biggles

[JS]

Like to see results, building from scratch seems like it will add so much to
the hobby enjoyment.
I'm saving for heli, but since I live near a canal I'm considering a boat
project as well.
I've been looking and not finding plans for boat.
I've tried online searches and asked at the hobby shops, no luck.
I've got 2 gas engines to choose from ,a chain saw and old weed eater shrub
trimmer.


"pete stainton" <pete.stainton.1h7hsa@rcgroups.com> wrote in message
news:pete.stainton.1h7hsa@rcgroups.com...
>
> thank you to all who replyed i will post again maybe in the new year
> with my progress
> have a good xmas and new year
> biggles
>
>
> --
> pete stainton
> ------------------------------------------------------------------------
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[John Boren]

Midwest Products sells a complete steam engine outfit complete with boiler. Go to www.midwestproducts.com.

John Boren