Heljan HJN1042
LNER U1 Coal Fired Loksound DCC Decoder
Manufacturer catalogue image - please note that pre-release images may be CAD renders or CGI/AI images rather than photographs
Manufacturer description
Designed specifically for the Heljan LNER U1 Class locomotive, this decoder works seamlessly with the firebox flicker and dual speaker configuration to reproduce the characteristic sound and function of the iconic LNER U1 locomotive at work.Â
Catalogue listing
Supplier Links
Supplier links are provided for your convenience and do not guarantee that the product is currently available. RailwayModels.uk is not a representative of these suppliers, but may receive a commission when purchases are made through links on this page.
The Heljan LNER U1 Coal Fired Loksound DCC Decoder (manufacturer part number HJN1042) is a LokSound V5 DCC sound chip designed specifically for the Heljan LNER U1 Class locomotive. It incorporates a firebox flicker function and supports a dual‑speaker configuration to reproduce the characteristic sounds and visual effects of the historic coal‑fired engine.
The decoder provides digital command control (DCC) operation, allowing sound playback and firebox lighting to be triggered by DCC inputs. It is compatible with standard DCC systems and can be programmed using common DCC software tools.
Installation is intended for the Heljan LNER U1 model; the unit fits within the locomotive's chassis and connects to the supplied speakers and firebox LEDs. The product is supplied with the LokSound V5 chip and the necessary mounting hardware.


