Hornby releases TT:120 Duchess of Sutherland for express layouts

Hornby’s TT:120 Duchess of Sutherland has given the scale a locomotive with real express presence. The 6233 Duchess of Sutherland is the latest incarnation of Hornby’s LMS Princess Coronation 4-6-2, and the model is presented in as-built 1930s condition, which immediately broadens what TT:120 can credibly portray on an express-focused layout.

That matters because the Duchess class is one of the most imposing names in British steam, and Hornby has matched the prototype with a specification aimed squarely at serious running. The model is listed in LMS crimson lake and era 3, designed by Sir William Stanier, with a 5-pole skew-wound motor, an NEM coupling system, metal buffers, and an 18-pin DCC-ready socket. For TT:120 builders, that combination makes the locomotive suitable for reliable operation as well as display, whether the layout is being set in the pre-war years or in early British Rail express service.

The release also gives layout planning more room to breathe. A Princess Coronation can anchor a prestigious passenger train, a preserved-line scene, or a diesel-and-steam transition setting, and it does so without demanding the footprint of larger scales. In TT:120, where space-saving is part of the appeal, a long, elegant Pacific with a strong identity can become the focal point of a shelf layout or a compact main line railway. Hornby’s own positioning points buyers toward LMS coaches, which opens the door to a proper top-link rake rather than a single showcase locomotive.

For TT:120 as a whole, Duchess of Sutherland marks another step away from the idea that the scale is only about starter trains and utility stock. Hornby had announced the Princess Coronation class as newly tooled in April 2025, and the line has already been seen in LMS crimson lake and BR green versions, with tooling variations across the class’s lifespan. By June 20, 2026, the TT:120 roster also included Hornby’s LNER A4 Sir Nigel Gresley, underlining a broader push into prestige steam on more than one region’s metals.

That is the real milestone here: TT:120 now has a heavyweight express Pacific that looks at home on LMS and West Coast Main Line scenes, and it arrives with enough period credibility to make a short layout feel like part of a much bigger railway.