Key Publishing Announces Limited OO Class 66 66799 Modern Railways Edition

Key Publishing has pushed its exclusive collection deeper into modern freight territory with an OO-gauge Accurascale Class 66 of 66799 Modern Railways Diamond Jubilee, a limited run that is already set up to sell on identity as much as on engineering. The model is restricted to 300 units, split between DCC-ready and DCC sound-fitted versions, and Key Publishing says delivery is expected in 2027. A £30 non-refundable deposit secures the preorder, which puts this firmly in the category of buy-now, wait-later stock that forces a fast decision.

The appeal starts with the prototype’s nameplate. GB Railfreight named 66799 Modern Railways Diamond Jubilee on 22 September 2022 to mark the 60th anniversary of Modern Railways, the magazine that launched in 1962. That is the kind of backstory that gives a limited edition staying power, because it is tied to a real event, a real operator and a road number modellers can place on a layout without having to explain it away. The model is finished in GB Railfreight blue and orange, so it lands with the same recognisable look that freight fans associate with one of Britain’s best-known contemporary workhorses.

66799’s own journey also helps explain why this is more than a cabinet piece. The locomotive arrived in the United Kingdom on 30 July 2021 at Immingham Docks and was taken to Doncaster by 66738 for overhaul to British standards. That work included air conditioning, sound proofing, double glazing and cab upgrades with GSM-R and TPWS, details that underline how thoroughly the machine was brought into line for main-line freight duties.

In traffic, 66799 has done exactly the kind of work that keeps Class 66s relevant to modellers: engineers’ trains, cement, aggregates and container services. It also appeared at the GB Railfreight Weekend at the Nene Valley Railway in September 2024, where it worked driver experience trips and passenger services. GB Railfreight says it now runs over 2,000 trainloads a week, moves 22% of Britain’s rail freight and operates a fleet of 170 locomotives and more than 1,800 wagons, a scale that explains why a specific GBRf 66 still feels useful rather than novelty-driven.

That is the real test for a commemorative release like this. The Modern Railways branding adds collector value, but the lasting pull comes from the fact that 66799 is still a believable, hard-working Class 66 for container, aggregate and general freight layouts. For buyers who want a named prototype with limited availability, the combination of 300-unit scarcity, a recognised road number and a 2027 delivery window makes this one hard to ignore.