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Post by frz45 on Apr 19, 2014 17:07:58 GMT
Well if I can't get passed the test and insurance could I not just use it for personal use only?
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Post by Deleted on Apr 19, 2014 20:37:59 GMT
Sorry Hagley, I fail to understand how the loss of the Kursk could have anything to do with Stainless Steel, except that her outer hull was made from Stainless. According to the reference you quote, the Kursk was sunk by one of her own torpedos, when the hydrogen peroxide used as one of the torpedos propellants exploded during test-firing, plus consequential events. Johannes -------------------Hello Johannes...No,it wasn't the loss as such that I was referring to.. Your list included the use of Stainless Steel in Submarine Construction ( and was shown in bold type) which as I said, reminded me of the Kursk and thus its' Stainless outer hull....Given the thickness of the SS itself and the size of that outer hull then that's an awful lot of Stainless Steel to be carrying around just to reduce your magnetic signature.....Just think how many 5" gauge boilers that would make ... Other Soviet subs from an earlier era also used Stainless ( I believe as the actual pressure vessel itself ) but I couldn't find any references to SUBstantiate this ...
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jma1009
Elder Statesman
Posts: 5,901
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Post by jma1009 on Apr 19, 2014 20:56:21 GMT
hi frazer, you could use it for your own garden railway but i wouldnt let your kiddies near it. it isnt acceptable in the UK, and some very experienced members of this forum have already pointed out defects with it's construction. you just have to put it down to experience im afraid. even those of us who have been at this lark a few years get caught out. i rebuilt a loco for someone and instead of accepting the £500 offered (this was 20 years ago) instead opted for a copper boiler he had for a 5"g GWR loco. subsequently the boiler turned out only fit for scrap as so badly made. i wish i'd had the £500 instead! cheers, julian
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Post by Deleted on Apr 19, 2014 21:06:01 GMT
Well if I can't get passed the test and insurance could I not just use it for personal use only? -----------Of course you can..What you do in the privacy of your own home is entirely your own affair ( At least I hope that's still the case !! )...... The "Insurance" referred to on here is in relation to potential use for public passenger hauling ( as in Railway, Traction Engine or Marine use ) or possibly public demonstrations as a static item...that sort of thing, where "Public Liability" and a Clubs "Duty of Care" come into play.... I have a couple of small boilers in my workshop that I use to power-up some stationary engines ( Usually at about 20 psi ) and that's where they stay !!.......
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Post by alanstepney on Apr 20, 2014 7:53:04 GMT
If you test and inspect it and find it to be basically sound, there is the possibility of selling it to someone in one of the countries that allow SS boilers.
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Post by ejparrott on Apr 20, 2014 8:13:23 GMT
Injector test rig
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steam4ian
Elder Statesman
One good turn deserves another
Posts: 2,069
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Post by steam4ian on Apr 20, 2014 12:49:39 GMT
Johannes makes some good points regarding 14571.
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Post by ilvaporista on Apr 21, 2014 8:32:53 GMT
Just a brief not about TIG welding of stainless, it's not a process for the hobbyist and I would not recommend a home made stainless boiler. I used to work on power station boilers and the artistry of the guys with a torch has to be seen to be believed. Copper is the only real choice for self build boilers in our sizes, unless you just happen to be a certified welder in your day job. Stainless boilers from known commercial manufacturers with correct paperwork are, in my opinion, low risk.
As for the boiler in question it might be useful as a stand alone test but I doubt very much you would ever get to fit it in a model and use it in public on a UK track.
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Post by frz45 on Apr 21, 2014 9:32:18 GMT
My idea now is to really just use it as a stationary unit or even make a model portable to just be used for my own enjoyment really, but obviously after a pressure test.
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Post by ettingtonliam on Apr 21, 2014 9:34:45 GMT
Well if I can't get passed the test and insurance could I not just use it for personal use only? I don't want to rain on your parade, but at one time I had some dealings with stainless pressure vessels when I was contracting in AWR Aldermaston, and as you can imagine these were to the highest standards, with supporting paperwork to make your eyes pop out. Even so, stainless pressure vessels are a complex subject, if only for the fact that there are many grades of stainless steel, only some of which are suitable for the combination of temperature and pressure found in a boiler. As far as I know, you have been given no paperwork substanciating the grade of steel used, the weld procedure used and evidence of the competence of the welder? Nor do you have any calculations for the boiler itself, which can't be a published design, because as far as I know there are no accepted published designs for stainless steel boilers? With all of these unknowns, even it stands a cold hydraulic test, I don't think I'd risk steaming it. I know you have invested money in it, so all this can't be good news, but personally I wouldn't even try selling it on as a boiler, only if described as an ornament, and even then only if I'd cut a hole in the firebox to prevent anyone in future trying to use it. Richard
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Post by fostergp6nhp on Apr 22, 2014 18:44:22 GMT
Jumping back to the Kursk, there was a documentary that claimed that the Kursk was in a collision with a US sub that was getting too close while trying to screw up the Russians demo of a new unstoppable torpedo that they were putting on the market. The end result was the US sub thought that the Russians had launched a torpedo at them so they fired one Mk48? back, just after there was a bang followed by the big ban that blew the top off of the torpedo compartment of the Kursk. just after this a 'loan' that was due to be repaid by Russia to the US was mysteriously written off. When the wreck of the Kursk was raised and dropped in the dry dock for scrapping, there was in the starboard side just to the rear of the cut where the bow had been severed prior to the lift, a hole that was claimed to be the signature damage of a Mk48 hit with its shaped charge warhead that cuts a circular hole out of the platework of the target.
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Post by Deleted on Apr 22, 2014 19:24:27 GMT
Like this ?/ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and is this the hole ??
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Post by fostergp6nhp on Apr 23, 2014 20:02:48 GMT
That's it.
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