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OO Gauge JNA-Y Bogie Ballast Wagon
Feb 04, 2026
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OO Gauge JNA-Y Bogie Ballast Wagon
We are delighted to announce the launch of the OO Gauge JNA-Y, the natural evolution of our MRA side tipping wagons
Prototype
The JNA-Y, commonly known as the “Hawk”, is a modern Network Rail engineering wagon and a familiar sight on today’s British railway. Introduced through a large-scale rebuild programme, these wagons were converted from the earlier MRA side-tipping ballast wagons, extending their working life and aligning them with modern engineering practices.
Stripped back to their original frames and rebuilt with new steel box bodies, the JNA-Y offers a robust, high-capacity open wagon designed for loading and unloading by excavator or grab. The conversion programme, delivered for Network Rail in the early 2020s, has produced around 300 wagons, making the JNA-Y one of the most numerous contemporary engineering wagon types.
In service, JNA-Y wagons are used for ballast, spoil and general infrastructure materials, typically operating in long rakes behind modern diesel locomotives, but can equally be spotted operating singly. Finished in Network Rail yellow and often heavily weathered, they are an essential component of the current-era engineering scene, making them an ideal addition to any modern image OO gauge layout.
We would like to thank Loram for all the help, information and access to the prototype they have provided.
Engineering Prototype
We are delighted to launch the JNA-Y with the Engineering prototypes, showing both the conversions from the end and middle cars of the MRA, which have different buffer beams.
Middle MRA Unit Conversion JNA-Y Prototype
End MRA Unit Conversion JNA-Y Prototype
Specifications
- Utilising the highly acclaimed Dapol OO Gauge MRA model as a base, with a new body and improved chassis, Bogies and buffer beams.
- Finely applied livery with accurately printed detail
- High level of detail on the body, bogies and buffers representing both MRA end and centre cars
- Profiled wheels for exceptionally smooth running
- Heavy dicast subfloor for added weight
- NEM pockets with self-centring couplings
Proposed Models
4F-083-001JNA-Y `Hawk' Inner Wagon Network Rail Yellow 81705831062-1
4F-083-002JNA-Y `Hawk' Inner Wagon Network Rail Yellow 81705831093-6
4F-083-003JNA-Y `Hawk' Inner Wagon Network Rail Yellow 81705831107-4
4F-083-004JNA-Y `Hawk' Inner Wagon Network Rail Yellow 81705831219-7
4F-083-005JNA-Y `Hawk' Outer Wagon Network Rail Yellow 81705831101-7
4F-083-006JNA-Y `Hawk' Outer Wagon Network Rail Yellow 81705831125-6
Recommended Retail Price
Each
£44.95
Project Update
The engineering prototypes are currently being reviewed along with the artworks by the design team. Modifications that have been identified are to improve the buffer head profiles and remove any unnecessary holes in the side of the chassis.
We anticipate that these models will be in shops sometime during Q4 2026
Pre-Order at your preferred Dapol stockist today
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