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2 1/2 inch gauge LNWR Jubilee 4-4-0 "Black Prince" - stock code 9990

A well-built 2 1/2 inch gauge LNWR "Jubilee" class 4-4-0 "Black Prince".

Originally designed by Webb as a four cylinder compound, in which form the locomotives proved unreliable, they were all rebuilt by Whale as two cylinder engines.

The model takes this a step further, with a single cylinder driving a heavy flywheel, gear driven to the wheels and fitted with slip eccentric valve gear. It runs beautifully on air, the wheels ticking over smoothly at a walking pace courtesy of the reduction drive.

The boiler is spirit-fired, fitted with a six wick burner.

gauge 2 1/2 inch
length/inches 17 1/2 +12
width/inches 4 1/2
height/inches 7 1/2
weight/kg 9
wheel material cast iron
axlebox type plain bearing
cylinder material gunmetal
valve type slide
valve gear slip eccentric
boiler type water tube
boiler material copper
safety valve(s) 1
safety valve type spring
hand pump 1