Product Info
We are delighted to present a further run of the highly detailed Hornby TT:120 English Electric Class 37 for the October 2026 range launch.
Including working lights, a weighty diecast chassis, smooth running characteristics and an accurate tooling suite to depict various class 37 subclasses, our venerable ‘tractors’ are a must have for any TT:120 layout. TT3062M depicts No.37800 in Rail Operations Group ‘Europhoenix’ livery, named ‘Cassiopeia’.
Model Specification:
- Highly detailed model based on extensive research and design, including historical drawings and laser scans
- Diecast chassis and underframe giving the mode a weight of 170 grams
- Assortment of separately fitted parts, including lamp brackets, speedometer, sandpipes, and roof horns
- Etched metal roof grille
- Detailed cab interior
- Powerful 5-pole motor with dual flywheels providing power to all wheels
- Electrical pick-ups on all wheels
- Brass axle bearings
- Pivoting NEM coupling sockets
- Accessory pack that includes body removal tool, optional snowplough and bufferbeam pipes
- Minimum 2nd radius curves
Electronics:
- Working directional and cab lights, including Day/Night mode (please note some functionality will only work on DCC)
- Next18 DCC Decoder Socket compatible with HM7000 system
- Decoder socket housed underneath clip-on body
- Space for HM7000-N18TXS Sound Decoder to be fitted
- Space for HM7070 Power Bank for uninterrupted running
Tooling:
- Class 37/7
- Plated Headcodes
- High Intensity Lights
- LED-style marker lights
- Multiple working socket recessed in nose ends
- Square Buffers
- Plated Roof Boiler Plate
Livery:
- Rail Operations Group ‘Europhoenix’
- Semi-gloss finish
- Faithfully created using accurate colours and fonts
- Era 11
Hornby Recommends:
- MK3 Coaches
History
Built at English Electric’s Vulcan Foundry, near Newton-le-Willows in Lancashire, this locomotive started life as D6843 in May 1963. It went new to Cardiff Canton, before moving north to Scotland in August 1966, where it stayed until returning to South Wales in October 1974, having been renumbered to 37143 under TOPS earlier in the year.
The Class 37 was rebuilt as a subclass ‘37/7’ with additional ballast weight for hauling heavy coal and steel trains in South Wales, and was renumbered 37800 in 1985. Named ‘Cassiopeia’, it is one of 12 owned by Europhoenix, but on loan with Rail Operations Group (ROG) and is still in service.
Welcome to the HM7000 Control System
HM7000 is an innovative way of controlling and operating model railways. Combining Bluetooth® technology and app-based control, the HM7000 Control System has been designed to revolutionise the controlling of a model railway.
Learn more
- Bluetooth® Connectivity
- Free Sounds
- Quick CV Editing
- Multiple Control Options
- 40+ Profile Settings
- Other Options
Upgrade Paths
Previous Control Systems can be upgraded to HM7000, see below for the options and upgrade paths available.
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Train Set > HM7000
Already have a locomotive but want to go digital? Click here to discover how.
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HM6000 > HM7000
The HM6000 system is only a short step away from having HM7000. Click here to discover how.
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HM|DC > HM7000
New to the hobby? HM7000 is just a short step away. Click here to discover how.
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DCC > HM7000
Already operating a layout using DCC? HM7000 is just a short step away. Click here to discover how.
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Conventional DCC Controller > HM7000
Locomotives fitted with either a Hornby HM7000 or conventional decoders can be operated using the HM|DCC Bluetooth® system - click here to learn how.
HM7000 Products
The following points must be considered below when purchasing. HM | DCC and the HM7000 decoders have been extensively tested up to a range of 45 metres in plastic bodied locomotives and up to 12 metres in die-cast bodied locomotives. HM | DCC and the HM7000 decoders have been extensively tested up to a max of 14 non-stationary, running locomotives. HM | DCC and the HM7000 decoders have been extensively tested on iOS devices dating as far back as 5 years from today's date. Any devices older than this cannot be commented on for proper function by Hornby Hobbies. Please ensure that the incompatibility list is considered prior to any purchase.
What's Inside
Recommended For You
Tech Specs
- Item Length - Without Packaging (cm)
- 15.5
- Item Height - Without Packaging (cm)
- 3.2
- Item Width - Without Packaging (cm)
- 2.3
- Item Scale
- 1:120 Scale
- DCC Status
- DCC Ready Next 18 pin socket
- Minimum Curve (mm)
- Radius 2
- Motor
- 5 Pole Skew wound
- Buffer Type
- Metal Buffers
- Coupling Type
- NEM Coupling
- Hornby Decoder Compatibility Primary
- HM7000-N18: Bluetooth® & DCC Decoder (Next18-pin)
Detailed scale model. Not suitable for children under 14 years. Please refer to safety notes in enclosed instruction leaflet. Colours and contents may differ from those illustrated. Please retain these details and the address for future reference.















