HO B&M 2-8-4 Berkshire T1a Steam Locomotive #4012 with 4-axle Tender (BLI7794)

HO scale Boston and Maine 2-8-4 Berkshire T1a steam locomotive with a four-axle tender, No. 4012, is a detailed model that captures the presence and heft of the era’s heavy steam power. Built to haul long trains over Massachusetts’ steep grades, the four-axle tender adds authentic balance to the silhouette. The model is offered in Stealth Series DCC-ready form (no sound) and in a Paragon4 variant with built-in sound, letting hobbyists choose quiet operation or full locomotive audio. An 8-ohm speaker is already installed to simplify adding a decoder with sound, and front and rear lights are directional while other lighting stays on with track power. The heavy die-cast boiler, tender, and chassis, combined with a 5-pole can motor and skew-wound armature, deliver solid pulling power and smooth slow-speed performance.

Beyond looks, the locomotive emphasizes practical operation. The four-axle tender mirrors the real T1a’s balance, while prototypically accurate detailing—handrails, ladders, piping, cab glass, a whistle, a brass bell, number boards, air tanks, and more—adds to the sense of scale. The model includes factory-installed engineer and fireman figures, and an optional piping shroud is included to replicate the forward walkway near the cab. Rubber traction tires enhance pulling power, and the design supports a minimum 18-inch curve radius, making it a compelling centerpiece on a variety of HO layouts.