HORNBY | Merchant Navy Class - 21C1 'Channel Packet' (With Steam Generator) - Engineering Sample

Hornby Model Railways

Published on Friday 27 June 2025 by Hornby Model Railways

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This model features DCC sound and steam functionality to recreate the first of Bulleid’s powerful and iconic Merchant Navy locomotives.

Detail features:
High detail OO gauge model based on extensive research and original works drawings
High detail cab with fully decorated backhead and decorated instrument dials
Opening cab roof vent
Early 21C1 'widows peak' front end streamlining and chimney arrangement
Cast trailing truck
Sprung metal buffers
Heavy die-cast chassis, pony truck and trailing truck

Electronics & 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
Powerful 5-pole skew-wound motor
Flywheel with cardan shaft arrangement for smooth running

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