We’ve teamed up with Rainbow Railways of Linlithgow to bring you our next exclusive Class 37 - meet DRS ‘Heavyweight’ 37716!

Fan-favourite 37716 earned a devoted following across the UK during its mainline years with DRS, and what better way to celebrate this iconic locomotive than with our brand-new model?

Available to pre-order now through both Accurascale and Rainbow Railways, you can reserve yours with no upfront deposit required.

About the Prototype

First built as D6794 and delivered to British Railways in 1963, the locomotive was later renumbered 37094 under TOPS and became part of a small fleet of Class 37s refurbished in the late 1980s for BR’s Railfreight sector.

Modifications included extra ballast in the engine room to provide greater tractive effort for the heavy trains it was expected to haul with BR’s Trainload Metals fleet at Thornaby depot, and it was renumbered in the 37/7 series accordingly.

Following privatisation, EWS acquired the locomotive and operated it until 2001, when it was exported to Spain for high-speed line work. Afterward, it was stored and left to deteriorate.

The remarkable comeback of 37716 and its fellow ‘Heavyweights’ from near-scrapping remains impressive nearly 15 years later. These Class 37/7s wore striking blue livery during their Spanish service, and by 2011 only nine survived, with six - including 37716 - returning to the UK and rescued from almost certain destruction.

After 15 months of restoration, 37716 re-entered service with DRS, quickly earning a fan following for hauling everything from nuclear flasks and infrastructure trains to charters and loco-hauled services.

It remained a versatile star until storage in 2024 and was later sold to HNRC (now Swietelsky UK), where it remains operational, awaiting a return to the main line.

Enter the Heavyweight Champion!

Utilising our brand new tooling debuted on the third run, this 'Heavyweight' machine displays classic tooling modifications such as the blanked-out engine room window, modern LED lighting setup, as well as the two-piece cantrail grilles due to the prototype being part of the Darlington-built batch by Robert Stephenson & Hawthorns Ltd.

Packed with an impressive lighting suite, the model also benefits from operating roof fan synced to the DCC sound file (also works on DC), refined bonnet top doors, improved glazing, and upgraded grilles.

Finished in DRS' blue-fade Compass livery, the model really stands out and thanks to it's hefty 695g mass, really helps convey the 'Heavyweight' nature of the prototype in model form.

Price, Availability and Pre-Ordering Options

Pre-orders are open for 37716, for an estimated Q2 2027 delivery.

You can order your model directly from Accurascale or from Rainbow Railways, whichever you prefer. It's our first DRS 'Heavyweight' Class 37 modelled, so we expect sales will be brisk - don't delay putting in your pre-order!

We've kept prices the same as the incoming run of Class 37s, so you can preorder your model from £189.95 (DC/DCC Ready) and £289.96 (DCC Sound fitted).

You'll also benefit from free UK delivery for orders over £50 and Accurascale Reward Points that you can exchange for discounts on future purchases, including decoders and our exclusive ModelU crews!

Pre-order yours today with no deposit down.

PRE ORDER YOUR 37716 MODEL HERE

Common Features for our Class 37 Range Include:

• Heavy die-cast metal chassis
• Accurate tumblehome, nose, cab roof and cantrail curves taken from 3D Laser scan and extensive surveys
• Timeframe specific details, including but not limited to;
• Bogies (Fabricated and three variations of Cast)
• Fuel tanks (As built and with later smooth-sided long range fuel tank)
• Three styles of buffer: large round Oleo, oval and squared oval
• With or without cab roof vents and bodyside windows
• Motorised working radiator roof fan
• Nose and roof aerials and antennas (where applicable)
• Three styles of windscreen: standard, centre toughened and all toughened
• Three styles of cab interior: as built, refurbished and modern DRS locos
• Four bufferbeam variations with different piping configurations
• Door kickplates where applicable
• Multiple body and nose slides to accurately represent almost every member of the class, including three variations of cantrail grille: early EE (for D6700-D6704), later EE and RSH
• Four roof styles: Original double riveted, single riveted, welded and welded with antennas
• Separately applied etched metal and high fidelity plastic detail parts, including grab handles, aerials, steps, wipers, nameplates, crests and more.
• Etched metal door kickplates (where applicable), ‘frost’ grille (where applicable) & super fine etched metal roof grille
• Scale width wire handrails
• Turned brass roof-mounted horns on centre headcode examples
• Full underbody tank detail with brackets and pipework
• Bogies feature separate footsteps, etched footsteps, brake cylinders, speed recorder, end brake rigging and very fine brake chain
• Brake blocks on trucks (bogies) in line with wheels (can be moved for EM/P4 gauges)
• RP25-110 profile OO gauge wheels with fine scale ‘drop in’ EM (18.2mm gauge) and P4 (18.83mm gauge) wheels available separately
• Accurate high-fidelity miniature snowploughs
• Fully sprung metal buffers, extra-fine factory-installed pipework and screw couplings
• Correct height mini-tension-lock couplers with NEM socket as well as a fully detailed bufferbeam
• Every model includes PowerPack / Backup Power Capacitor Bank for up to ten seconds of power free running, flicker free lighting and continuous sound

High Performance traction, to include;

• High-quality five-pole motor with two flywheels
• Metal Helical Gear box for maximum performance and slow speed running
• Gearing arranged so locomotive can achieve a scale top speed of 100 mph (160 km/h)
• DCC ready with PowerPack Super-capacitor for uninterrupted power and super low speed running
• All wheel drive and all wheel pickup