Topic: BUILDING A STUART TWIN LAUNCH ENGINE & BOILER (Read 44819 times)

flashtwo · « **Reply #75 on:** May 27, 2011, 10:02:59 pm »

Hi Mick,

I've fitted a very successful vertical 1.75 inch diameter feed heater / oil separator on the outlet of my D10 (see the "Flash steam plant control" thread

http://www.modelboatmayhem.co.uk/forum/index.php?topic=15817.100 for details ).

"Vital Byte" will be steaming at Wicksteed this weekend.

Ian.

ooyah/2 · « **Reply #76 on:** May 27, 2011, 10:12:33 pm »

Well well well Mick, never thought of T Cut. I will throw my Brasso out, second thought will give it to my wife to keep the coffee table polished.

You could incorporate a feed water heater in the oil trap but the boiler that you are going to build has the facility to install a heater in the smoke box
as I have installed in my boiler.

George.

Patternmaker · « **Reply #77 on:** May 27, 2011, 10:28:44 pm »

Thankyou George & Ian for your suggestions, it would seem that the size to fit my engine bed plate will be okay.
Just started the launch to fit it all in, bit of woodwork makes a change.

Mick

Brian Adley · « **Reply #78 on:** June 29, 2011, 12:38:24 pm »

Hi Mick,
Wouild it be possible to email the plans of the boiler to me?
Thanks
Brian

Patternmaker · « **Reply #79 on:** June 29, 2011, 01:01:44 pm »

Hi Brian,
The Boiler was designed by George Thompson (ooyah/2) I am sure if you contacted him he would be able to help you, although I have his plans I cannot send a copy without his permission. He is a very experienced
Engineer and very helpful.

Mick

Patternmaker · « **Reply #80 on:** October 04, 2011, 02:35:56 pm »

Boiler end plate, from 3mm copper.

Patternmaker · « **Reply #81 on:** October 06, 2011, 09:15:54 am »

How the boiler end plates where formed on a turned Oak plug, before machining

Patternmaker · « **Reply #82 on:** October 09, 2011, 05:11:11 pm »

Boiler Tubes

gondolier88 · « **Reply #83 on:** October 09, 2011, 07:09:08 pm »

Very tidy Mick, I'm liking it very much. Just for a sense of scale; what diameter is the combustion chamber please?

Greg

Patternmaker · « **Reply #84 on:** October 09, 2011, 08:29:34 pm »

Greg, its 1.75in OD

Mick

broger · « **Reply #85 on:** October 14, 2011, 08:12:06 pm »

Hi Mick
I'm very interested in this as I will be making a Launch engine for Alaska.
Looks a lovely job, is the outside skin 3mm as well?

alan

Patternmaker · « **Reply #86 on:** October 14, 2011, 09:03:25 pm »

Hi Alan
The boiler tube is 2mm

Mick

Patternmaker · « **Reply #87 on:** October 22, 2011, 05:42:49 pm »

Boiler soldered, hydraulic tested to 160psi.

ooyah/2 · « **Reply #88 on:** October 23, 2011, 10:35:13 am »

Is there no end to this mans talents ???
Wooden boats!!!!
Machining castings to produce a great engine, and now boiler making.
Well done Mick Super job all around, still can't keep from looking back at WIDE AWAKE .
George.

gondolier88 · « **Reply #89 on:** October 23, 2011, 12:28:14 pm »

Hi Mick,

A beautiful job, as always! What did you use for pickling if you don't mind me asking?

Greg

Patternmaker · « **Reply #90 on:** October 23, 2011, 12:43:01 pm »

Hi George,
Thanks for your comments and guidance on the boiler.

Greg,

I use diluted sulfuric acid.

Mick

Patternmaker · « **Reply #91 on:** October 29, 2011, 05:52:53 pm »

Gas Tank, 3” Dia 6” Long, pressure tested to 280 psi

KBIO · « **Reply #92 on:** October 29, 2011, 07:05:37 pm »

Hello Patern Maker!
Shiny!

But why two valves linked through a T ??

Regards!

Patternmaker · « **Reply #93 on:** October 29, 2011, 07:15:19 pm »

Hello KBIO.

Open valve No 1 to light burner when steady open valve 2 (which has a tube running to the bottom of the tank) close valve 1 the burner is then running on liquid Gas, much more efficient.

Regards Mick

KBIO · « **Reply #94 on:** October 29, 2011, 07:50:16 pm »

Thanks Pattren Maker. So your are going to send your gas in liquid phase!!
Very interesting.

Cheers!

ooyah/2 · « **Reply #95 on:** October 29, 2011, 10:02:45 pm »

Hi Mick,
Remember that you need to have a vaporizer wound round the burner flame tube when burning L.P.G straight from the tank.
George.

KBIO · « **Reply #96 on:** October 30, 2011, 07:28:56 am »

Good morning!

Like this one?!

Regards!

Patternmaker · « **Reply #97 on:** November 07, 2011, 03:28:05 pm »

Boiler completed

ooyah/2 · « **Reply #98 on:** November 08, 2011, 10:42:00 am »

Super job Mick,
I have run out of superlatives describing your workmanship, woodwork, metal and copper work all to the highest of standard.

If you have only one layer of insulation on the inside of the fire box may I suggest that you double it up , even triple it as the flame from your burner will very quickly discolour the brass cover, the same for the smoke box but only two layers.

Well done.
George.

KBIO · « **Reply #99 on:** November 08, 2011, 11:46:45 am »

Good morning!
What can I say??

Go on Mick! We appreciate and we learn on each photo.

Regards!

News:

Author Topic: BUILDING A STUART TWIN LAUNCH ENGINE & BOILER (Read 44819 times)

ooyah/2

Patternmaker

Brian Adley

Patternmaker

Patternmaker

Patternmaker

Patternmaker

Patternmaker

Patternmaker

Patternmaker

ooyah/2

Patternmaker

Patternmaker

KBIO

Patternmaker

KBIO

ooyah/2

KBIO

Patternmaker

ooyah/2

KBIO