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Post by flyingfox on Mar 3, 2013 18:56:28 GMT
Greetings, I have used the Don Young type of cylinder/ condensate drain valve on a number of locomotives, and have found them be be very effective, and totally reliable. I also use this design of condensate drain on steam operated drain cock systems, and it is very good. I have a 7 1/4 gauge tank that had the first I fitted 20 years ago, and it has always worked well, and indeed I have only recently dismantled it for cleaning, which was not required. Great advantage is that the operating valve can be a simple screwdown control valve, and there is only one pipe to connect from it to the cylinder, or drain cock manifold. Regards Flying Fox
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Post by flyingfox on Feb 25, 2013 17:49:48 GMT
greetings, although there are those against the use of electric pumps for steam locomotives, it would be a very useful thing to fit to a model steamboat. regards foxy
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Post by flyingfox on Jan 24, 2013 17:31:30 GMT
Greetings, of course we all know that mahogany was rarely used for this job in full size, usually rough pine planks were used, but I agree, mahogany looks nice. regards Brian Attachments:
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Post by flyingfox on Oct 9, 2012 6:59:31 GMT
Greetings John, to confirm your theory re max number of pulses that can be counted, why not alter, say halve the "wheel Diameter factor", and see if that reduces the top speed shown. Alternatively, 7.4 mph is your max speed. regards Brian B
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Post by flyingfox on Oct 2, 2012 16:30:46 GMT
greetings, If the magic has worked, then the attached photo should show a pump I made in 1986 for my "Buckjumper". It was made much as already been described, and worked well, but I swear that it used more steam than it pumped water into the boiler. Adequate lubrication is a must for reliable operation. regards Flying Fox Attachments:
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Post by flyingfox on Sept 24, 2012 16:49:50 GMT
Greetings, I ran extensively on a railway using black steel as a rail, and it rapidly removed the root radius on many wheels in use. After that, the wheel treads wear, because the outside wheel has to travel further on a bend than the inside, and one of the wheels then becomes worn, as it is dragged round the track. By all means try to profile the correct radius, but think of the work. regards Flying Fox
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Post by flyingfox on Sept 24, 2012 7:28:52 GMT
Greetings, I am not sure what scale you need these in, but if you turned a wooden master plug, undersize by the thickness of the plastic shhet used, then warm some thickish ( 1 mm) plastic modelling sheet (Plasticard in the UK) then this might answer. Or you could ask a school who have vacumn forming equipment to make them for you over your plug. Regards Flying Fox
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