Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build

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11thHour
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Re: Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build

Post by 11thHour » Mon Jul 29, 2019 2:32 am

Hi Tom,
There was a fairly comprehensive article in Australian Model Engineer about a year ago on building a small 7/8ths two fire- tube boiler. The article ran to 6 or 7 pages and included a computer generated analysis of the heat distribution. The results were fairly posative and makes for good reading if you can get hold of it.
Tim

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Hydrostatic Dazza
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Re: Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build

Post by Hydrostatic Dazza » Mon Jul 29, 2019 9:34 pm

11thHour wrote:
Mon Jul 29, 2019 2:32 am
Hi Tom,
There was a fairly comprehensive article in Australian Model Engineer about a year ago on building a small 7/8ths two fire- tube boiler. The article ran to 6 or 7 pages and included a computer generated analysis of the heat distribution. The results were fairly posative and makes for good reading if you can get hold of it.
Tim
I am building that type of boiler right now, inspired by those AME articles. I have seen the actual boiler in the articles in steam and it steams like a witch on speed. Pics in my Llewellyn Loco works thread. I have the articles in PDF if some one wants them emailed to them.

http://www.gardenrails.org/forum/viewto ... &start=315

go here for pics the build. I only finally cooked up the back head last Sunday. Preparing for the hydro test , but I am at Gympie this weekend on the 12" to the foot scale trains.

http://www.gardenrails.org/forum/viewto ... &start=360

http://www.gardenrails.org/forum/viewto ... &start=375

http://www.gardenrails.org/forum/viewto ... &start=420
Cheers from Dazza, The Hydrostatic Lubricator 8)
The chances of finding out what’s really going on in the universe are so remote, the only thing to do is hang the sense of it and keep yourself occupied. Douglas Adams

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tom_tom_go
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Re: Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build

Post by tom_tom_go » Mon Jul 29, 2019 9:58 pm

Maybe I should of said the Riverdale boiler is the best RTR type in my opinion...

11thHour
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Re: Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build

Post by 11thHour » Tue Jul 30, 2019 1:46 am

tom_tom_go wrote:
Mon Jul 29, 2019 9:58 pm
Maybe I should of said the Riverdale boiler is the best RTR type in my opinion...
...and the article agrees with Riverdale, 2 large tubes are better than multi tubes and easier to make.
I am only sorry I didnt know this before I started my current project.

Tim

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