Is this your loco? [ATTACH]
You are correct of coure, but nevertheless there is a broad correlation between TE and power (IHP = TE x M / 375 where TE is the indicated TE...
The front end of the Princess frames was prone to cracking (all or nearly all eventually had a whole new section welded on) and, perhaps inspired...
Thanks for putting those images up. Bulleid made an apposite observation (in the Q&A session on his paper on the MNs to the IMechE), in response...
Just had a look at the Chinese QJ manual, and I note it calls blowdown valves "boiler drain valves" (other translations of fangshui fa are...
The largest component of monel is nickel of course which is around twice the price of copper. It is strange we don't hear much in the way of...
Bulleid's design was somewhat different from the international standard for steel boxes, the steel stays being thinner (5/8" dia. between the 7/8"...
Data sheets on managanese steel are readily available online e.g. https://ajmarshall.com/wp-content/uploads/2017/07/12-14-Manganese.pdf and make...
Thank you Ian. It is somewhat ironic that more recent technology does not employ horns at all, even on powered axles. The De Glehn bogie with...
As a ball park comparison, the bogies of a Chinese DF4B (Co-Co DE, total weight 138t (metric), weigh 22.7t. They are a bit more modern than the...
Interesting that manganese steel liners are used on the bogie hornguides as the wheelsets transmit no tractive or braking forces. Presumably that...
Thanks. I wonder what on earth a contract would look like, and why anyone should be motivated to go to the trouble of tendering competitively for it?
Thanks for posting Ray. In case this well-made film was inspiring anyone to visit, sadly the line has been undergoing Disneyfication for some...
Cook says in Raising Steam on the LMS p.81 that the "existence of such a large pool of [G9 1/2S] boilers [ i.e. the boilers for the unrebuilt...
The attached is from Alfred Bruce's "The Steam Locomotive in America". He notes that combustion chambers were generally adopted by 1916.. "to...
Slot in Duchess cladding to clear the lubricator lids. [ATTACH]
Appears to be Semboro, one of the mills in eastern Java. A shot from more steamy days attached (photo: the late Brian Pearce). [ATTACH]
? The Great Central was a total dog financially (as was the LNER for most of its life). The GCR preferred ordinary stock did not receive a...
Thank you for posting this. I assume the numbers are the amounts in inches for full travel, although I guess it does not really matter. This is a...
Nock is a bit of an enigma. One assumes that he had some engineering aptitude but this passage reads like a press release. It generally explains...
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