We are delighted to announce that in collaboration with KMS Railtech and Trains4U, we will be producing a newly tooled HAA family of hopper wagons in 4mm scale. The idea behind our HAA project first came about at a show last year (late 2019) when a customer of ours suggested this iconic wagon. From that point on we received more suggestions for this wagon and we started on the design early in 2020.

Numerous trips to Knottingley depot were made to ensure we captured the iconic wagon’s shape and features.

The model is already significantly advanced and at the tooling stage of the process. Below are some 3D renders of the HAA design.

The wagon will incorporate the following features, as standard on a Cavalex Models’ product:

• Highly detailed underframe

• Zinc alloy chassis

• Easy conversion to P4/EM, with 26mm axles used as standard

• NEM coupling pockets, including NEM blanking plates for instanter use

• Sprung buffers

These models are due to arrive in the UK Q3 2021.

The HAA and HFA will both be available in triple packs with individual running numbers and can now be pre-ordered direct from KMS Railtech and Trains4U.

These models are exclusive to 

and 

and cannot be ordered through any other retailer.

Please visit the above websites for further information and details of these triple packs. More details on our HAA project can be found on our website 

Please remember, when contacting retailers or manufacturers, to mention that you saw their products highlighted here – on RailRoad Modeling