The Bulleid ‘Pacifics’ were essential to express trains on the Southern Railway, later Southern Region network. 

The first was introduced in 1941 with a total of 30 being built at Eastleigh Works with a striking air-smoothed casing, a modern boiler with thermic syphons to increase its efficiency and a unique chain driven valve gear. While the class was successful in this form, they had their drawbacks and in 1956 British Railways set about rebuilding the locomotives to improve reliability. 

The modifications included replacement of the chain-driven valve gear, oil bath and inside cylinder block, as well as recladding the boiler to give the locomotives an altogether new appearance, in similar vein to the new breed of locomotives appearing on BR at the time.

Please Note: this model requires a DCC controller or the HM7000 app to control.Specific to R30490SS

• Pre-fitted steam generator system featuring an optical sensor for accurate chuff rate synchronised with the wheel speed. Steam output is created using piezo element technology. This is a cold water-based system (no heating element).
• Pre-fitted 21-pin HM7000 decoder and speaker. The decoder compatible with NMRA DCC controllers, HM7000 APP control and has the Merchant Navy sound profile pre-installed for accurate locomotive sounds, synchronised with the chuff rate
• Adjustable steam output settings via the decoder
• Water reservoir for up to 20 minutes continuous steam running
• Early 21C1 widows peak front end streamlining and chimney arrangement
• 5000 Gallon Tender in its original condition with raves yet to be cut back
• Cast trailing truck
• Modern 6000 gallon tender with additional pump, air tanks and battery arrangement for main line running (as preserved)
• BR Green livery

Common Rebuilt MN Steam Generator features

• High detail OO gauge model based on extensive research, 3D scanning and original works drawings
• Die-cast chassis, pony truck and trailing truck
• Die-cast boiler and running plate
• Merchant Navy Bullied-Firth-Brown wheels
• High detail cab and fully decorated backhead with decorated instrument dials
• Flickering firebox
• Working cab light
• MCU controlled electric front lamps for full lamp code control
• Working tender lamps
• Eight-way locomotive to tender connection
• Powerful 5 pole skew wound motor with cardan shaft and flywheel
• Flywheel with cardan shaft arrangement for smooth running
• Pogo pin wheel pickup arrangement for easy pickup servicing
• Die-cast connecting rods and valve gear
• Oilite main drive bearings
• Opening cab roof vent
• Sprung metal buffers
• Front and rear NEM coupling pocket
• Optional fit rear flanged wheelset. Only recommended for larger layouts with sweeping curves or for display purposes
• Wheel pickups on the main locomotive and tender wheelsets
• Separately fitted simulated coal load.​​​​​​​

History

New to March in Cambridgeshire in November 1954, 92031 was one of 251 ‘standard’ heavy freight locomotives built to the design of Robert Riddles between January 1954 and March 1960. Its working career took it to allocations at New England (Peterborough), Annesley, Westhouses and Newton Heath, Manchester, from where it was withdrawn in January 1967 after an incredibly short working life of just 12 years and almost two months. Scrapped at T.W. Ward at Killamarsh, near Sheffield, the locomotive was always paired with a standard BR1F tender.