This 12-sheet plan for a large and powerful 5in gauge 4-6-0 B1 LNER locomotive is designed by Martin Evans. It can be built with quite modest workshop facilities and is ideal for club tracks.

The 12-sheet plan consists of:

Sheet 1 General arrangement of engine and main frames
Sheet 2 Buffer and drag beams, main horns, main axleboxes frame stretchers, driving and coupled wheels, crank- pins, coupling rods
Sheet 3 General arrangement and details of bogie, brake gear, cylinders including piston valves and valve spindle guides
Sheet 4 Crossheads, slidebars, motion plates, connecting rods, Walschaerts valve gear
Sheet 5 Reversing gear, cylinder drain cock arrangement, mechanical lubricator and axlebox lubricators
Sheet 6 Boiler and details, arrangement of cab fittings
Sheet 7 Smokebox saddle, arrangements of steam and exhaust pipes, blower value, snifting valve, firedoor, blast nozzle and blower, regulator
Sheet 8 Engine steam brake, drivers valve, water gauge, safety valves, manifold, blowdown and check valves, superheaters, grate and ashpan
Sheet 9 Footplates, cab sides and roof, chimney and dome, buffers, screw couplings, dummy vacuum pipes,steps
Sheet 10 General arrangement of tender, pipework, interior details
Sheet 11 Tender frames, buffer beams and buffers, wheels, axles and axle-boxes, hand pump, water level gauge and injector water valves
Sheet 12 Tender compensating brake gear and brake standard

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