Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build
- tom_tom_go
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Progress!
Dome and pipework now painted and installed. Firebox door now complete with brass rod in place to be connected to a servo later on for R/C damper
In the smoke box you can see the exhaust pipe at the front (nozzle still to be fitted) and the blower pipe to the rear. The brass screws are temporary and will be replaced with painted hex bolts
Smoke box now painted using a different high temp paint to offset from the boiler colour
Dome and pipework now painted and installed. Firebox door now complete with brass rod in place to be connected to a servo later on for R/C damper
In the smoke box you can see the exhaust pipe at the front (nozzle still to be fitted) and the blower pipe to the rear. The brass screws are temporary and will be replaced with painted hex bolts
Smoke box now painted using a different high temp paint to offset from the boiler colour
- Dr. Bond of the DVLR
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- MDLR
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I suspect there'd be too much flue and not enough water space (remembering that scale boiler tubes would never keep clear) - there's got to be enough water space so the boiler will steam for a good few minutes before needing to be topped up.Mr. Bond of the DVLR:97855 wrote:Interesting that the boiler has only two flues rather than more smaller ones. I wonder why they chose to do that.
- DolwyddelanLightRail
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- Dr. Bond of the DVLR
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One of the selling points of Riverdale boilers in particular is they are meant to be loaded up with coal and sent off to chuff around unattended like a gas-fired one. Well, more so than a conventional coal-fired one anyway. Perhaps this is why they use this particular configuration of tubes: the tubes can stay submerged even when the water gets quite low, like Brian pointed out. Perhaps they sacrificed a bit of efficiency to make the boiler more idiot-proof. Really with its dry firebox and large double flue, it has a lot in common with a gas boiler compared to a conventional coal one. It's a compelling design. I can't help thinking the tubes must be easier to clean after a run this way too.
Perhaps also the location of the blast nozzle is different than we are used to because of the particular draughting requirements of the two large tubes. They would have to taylor the "strength" of the suction generated by raising or lowering the pipe. I'm just guessing.
Perhaps also the location of the blast nozzle is different than we are used to because of the particular draughting requirements of the two large tubes. They would have to taylor the "strength" of the suction generated by raising or lowering the pipe. I'm just guessing.
- tom_tom_go
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Exciting times these are!
If it can be made full scale it can be made 16mm
My line: http://gardenrails.myfreeforum.org/about7200.html
My line: http://gardenrails.myfreeforum.org/about7200.html
- tom_tom_go
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- Lner fan Sam
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- tom_tom_go
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Thanks Sam, it's come a long way from a pile of bits although she does not look very clean and tidy anymore after her first steaming
So I spent last Saturday learning how to fire her up (and to not use charcoal from an instant BBQ as most of it isn't acutally charcoal) and managed to get her doing laps round the garden. I was impatient waiting for the coconut charcoal on order, however, soaked lightly in lamp oil this is much better to use to light her up before adding coal.
I am hoping this weekend to run her around at a more relaxed pace with longer stopping times. All part of learning
Will try this time to get you all some pics and a video.
So I spent last Saturday learning how to fire her up (and to not use charcoal from an instant BBQ as most of it isn't acutally charcoal) and managed to get her doing laps round the garden. I was impatient waiting for the coconut charcoal on order, however, soaked lightly in lamp oil this is much better to use to light her up before adding coal.
I am hoping this weekend to run her around at a more relaxed pace with longer stopping times. All part of learning
Will try this time to get you all some pics and a video.
- Dannypenguin
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Great to hear you've got her steamed! Looking forward to the pics and video!
Dan
Visit the PFLR website - http://poultonfarmlightrailway.webs.com/
Dean Forest Railway Society website - http://dfrsociety.org/
Visit the PFLR website - http://poultonfarmlightrailway.webs.com/
Dean Forest Railway Society website - http://dfrsociety.org/
- tom_tom_go
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- tom_tom_go
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No videos yet as until I get the R/C sorted she just belts around my track sling-shooting out of the tight radius curves.
A few pics at least though:
Wiring and whistle in place. To my surprise it all works and have tested R/C with a servo with no issues. Air test with water in the boiler showed no leaks coming from the whistle set up:
The servos will be fitted on the other side to control whistle, regulator and damper.
The Roundhouse safety valve just wastes steam so I am waiting on a supplier to source me a pop safety valve instead.
A few pics at least though:
Wiring and whistle in place. To my surprise it all works and have tested R/C with a servo with no issues. Air test with water in the boiler showed no leaks coming from the whistle set up:
The servos will be fitted on the other side to control whistle, regulator and damper.
The Roundhouse safety valve just wastes steam so I am waiting on a supplier to source me a pop safety valve instead.
tom_tom_go:98534 wrote:Forgot to say thanks TonyW, chassis ran perfectly
Tony Willmore
Rhos Helyg Locomotive Works: http://www.rhoshelyg.me.uk
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Rhos Helyg Locomotive Works: http://www.rhoshelyg.me.uk
Facebook: https://www.facebook.com/RhosHelygLocoWorks
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