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R30560SS SR - Merchant Navy Class - 21C4 'Cunard White Star' (With Steam Generator)

Era 3 - Grouping (1923 - 1947)

Pre-order | Expected Summer 2026

£364.99

Available to pre-order
Item code:
R30560SS

Pay later - when dispatched
Pay later - when dispatched

Your payment card will be charged 14 days prior to delivery but we will notify you by email with an exact date.

Earn up to 3650 Hobby Points
with this purchase

Hornby Brand
1:76 Scale 00 Gauge Item Scale
HM7000 Fitted - With Sound DCC Status

Product Info

The popular Bulleid Pacific Merchant Navy is back in OO gauge with a brand new livery and steam generator technology. This highly detailed model represents the air-smoothed 'Spam Can', also known as 21C4 'Cunard White Star' in Southern Railways' malachite green.

A must-have model for Southern Region collectors, this feature-packed locomotive is pre-fitted with HM7000 control, for the most satisfying model railway experience yet.

Please Note: This model requires a DCC controller or the HM7000 App to control. 

Detail features: 

  • Highly detailed OO gauge model based on extensive research and original works drawings 
  • Highly detailed cab with fully decorated backhead and decorated instrument dials 
  • Opening cab roof vent 
  • Removable simulated coal load with fully detailed tender bunker 
  • Accurately modelled Merchant Navy Bullied-Firth-Brown wheels 
  • Modified 21C4 'widows peak' front end streamlining and chimney arrangement 
  • 5000 gallon tender with rear access ladders. 
  • Cast trailing truck 
  • Separately fitted nameplate, number plate, and company ownership plate 
  • Circular smokebox door company plate 
  • Sprung metal buffers 
  • Heavy die-cast chassis, pony truck, and trailing truck 

Electronics and traction features: 

  • Pre-fitted steam generator system featuring an optical sensor for accurate chuff rate synchronised with the wheel speed. Steam output is created using piezo element technology. This is a cold water-based system (no heating element). 
  • Pre-fitted 21-pin HM7000 decoder and speaker. The decoder is compatible with NMRA DCC controllers and HM7000 app control. 
  • Pre-installed Merchant Navy sound profile for accurate locomotive sounds, synchronised with the chuff rate and steam effect. 
  • Adjustable steam output settings via the decoder 
  • Water reservoir for up to 20 minutes of continuous steam running 
  • Die-cast connecting rods and valve gear 
  • Powerful 5-pole skew-wound motor 
  • Flywheel with cardan shaft arrangement for smooth running 
  • Oilite main drive bearings
  • Wheel pickups on tender and driven locomotive wheelsets 
  • Pogo pin wheel pickup arrangement for easy pickup servicing 
  • 8-way locomotive to tender drawbar, with integrated electrical connection for easy coupling and decoupling. 
  • Front and rear NEM coupling pockets, with narrow tension lock couplings 
  • Optional fit rear flanged wheelset (only recommended for larger layouts with sweeping curves or display purposes). 

History: 

Built in October 1941 at the Sothern Railway’s Eastleigh Works, ‘Cunard White Star’ was the fourth of Oliver Bulleid’s exciting and radical new 30-strong ‘Merchant Navy’ Class, designed for top-link express passenger work. The new locomotives had many innovations, such as chain-driven valve gear that was lubricated by means of an oil bath, electric lighting, one piece Firth-Brown driving wheels, and the distinctive air-smooth casing. The unusual French-style number 21C4 was replaced by the BR number 35004 in October 1949, following nationalisation of the railways. Rebuilt in July 1958, it was eventually withdrawn from Bournemouth shed in October 1965 and scrapped by Cohens at Eastleigh shed in 1966.

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
video thumbnail
  • Bluetooth® Connectivity
  • Free Sounds
  • Quick CV Editing
  • Multiple Control Options
  • 40+ Profile Settings
  • Other Options

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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

1x Model Steam Locomotive, 1x Accessory Pack, 1x Pipette, 1x Instructions

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Tech Specs

Item Length - Without Packaging (cm)
36.2
Item Height - Without Packaging (cm)
5
Item Width - Without Packaging (cm)
3.5
Item Scale
1:76 Scale 00 Gauge
License
No
DCC Status
HM7000 Fitted - With Sound
Operator
Southern Railway
Minimum Curve (mm)
Radius 2
Motor
5 Pole Skew wound
Buffer Type
Metal Sprung Buffers
Coupling Type
NEM Tension Lock
Hornby Decoder Compatibility Primary
HM7000-21TXS: Bluetooth® & DCC Sound Decoder (21-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.

Reviews