While I'm always surprised how small the grates are on GWR No 2 and No 4 boilers, I think the property of Welsh coal wasn't so much magic...
I think that is a very concise illustration of the difference between two personalities, but also between their circumstances. Maunsell put Lord...
Not sure that's strictly true. Post-war, the big Bristol Centaurus radials were more successful in civil aircraft than the Rolls Royce V12s,...
Since Bulleid and the Leader has come up, along with unreliable diesels, I feel there should be a special mention for.... Sleeve valves! The...
I'm sure I've read of something similar being used to round off sharp flanges on the N7 class. With the leading coupled axle they got a lot of...
Knut, air-braking was much more common in the pre-1923 British railway system than the preserved scene really conveys. The grouping companies all...
Wardale is very explicit about the reason for feedwater heating in his writings. It is not, as I suspect they were often sold and judged, about...
I do think there's something of a difference between the too-little-understood "accounting identity" principle (which Tom has explained with...
A wide firebox over a trailing truck is generally pretty good for ashpan design, giving scope for plenty of capacity and depth (although the LNER...
I just popped in, passing by. 9F and 506 in steam over the pit, waiting to go out. 925 appears to be warm, but nothing more.
In my first 'real' job there was a wizened old technician, who, if he liked somebody enough, would share the wisdom of his long years of service....
Didn't Riley's use rivets extensively in place of fitted bolts during the overhaul of Flying Scotsman, precisely because the holes in the frames...
705 was indeed a T9, one of the 1899 Dubs-built engines. I've had a look through the Bradley volume on the Drummond engines, and like you found...
My understanding is subtly different. The graduated release function on distributors works based on a reference pressure, set from the peak train...
I believe whitewashing was the Grouping-era practice when looking for cracks in rods. I guess it acted like a primitive dye-penetrant exam, but I...
A little, but also perhaps think about the problem. I tend to agree with @andrewshimmin that Drummond's earlier designs tended to be a...
I do apologise, while my explanation was technically correct, it was also terribly worded. To clarify: Coupling rods are, like crankpins, a...
Hammer blow isn't actually a reason in favour of double singles, because coupling rods can be perfectly balanced and therefore don't have to cause...
You're right, the sound in that going away shot is excellent, really captures that bass thump that I always think of as the signature of a...
In marine practice the use of a condenser could sometimes result in fairly drastic negative pressures. I recently read a very good series of...
Separă nume cu o virgulă.
