Steaming a brand new locomotive for the first time is always something of a special occasion, and this one certainly didn't disappoint. In steam for a couple of hours on Friday, it ran beautifully "out of the box" - a powerful engine with crisp exhaust beats, it notches up readily running in either direction - there's some video of it here.
A 7 1/4 inch gauge LNER B1; built to Martin Evans' "Roedeer" design the engine is in "ex-works" condition, steamed once from new.
The work of a highly experienced engineer who built more than twenty locomotives over a forty year period, from a 2 1/2 inch gauge "Dyak" through 5 inch gauge Pacifics up to his magnum opus, the 7 1/4 inch gauge LNER A4 "Sir Nigel Gresley".
Often working on two more more models at once, the B1 was one of the last on his bench, along with a fine 7 1/4 inch gauge Liverpool & Manchester "Lion" and well-advanced Britannia.
The engine has been built to a good standard throughout - fit and finish of the motionwork and valve gear is excellent, links are bronze-bushed and secured with pinned castellated nuts.
The copper boiler is a commercially built job by Kingswood, supplied new in 2001 and silver soldered throughout, complete with original manufacturer's test certificate. Since arriving with us the boiler has had a repeat hydraulic test at 150psi for 100psi working pressure, with new certification issued.
gauge | 7 1/4 inch |
length/inches | 58 + 37 |
width/inches | 13 1/3 |
height/inches | 20 |
wheel material | cast iron |
axlebox type | plain bearing |
cylinder material | cast iron |
valve type | piston |
valve gear | Walschaerts |
reverser type | screw |
lubricator type | 2 x mechanical |
injector(s) | 2 |
boiler number | KB01041 |
year built | 2001 |
boiler maker | Kingswood Boilers |
CE mark | n/a - pre-2002 |
working pressure/psi | 100 |
boiler type | locomotive |
boiler material | copper |
boiler construction | silver soldered |
hydraulic test valid to | 20-Oct-2024 |
superheater(s) | 3 |
superheater type | flue tube |
fusible plug | yes |
safety valve(s) | 2 |
safety valve type | spring |
whistle | yes |