GM4240221 Class 47 815 'Lost Boys 68-88' Rail Operations Group Diesel Locomotive - DCC SoundIn response to customer demand, HELJAN is now working on an all new Class 47 in OO gauge. The model will build on the research and design work undertaken for their new O gauge Class 47, which is currently at the tooling stage. While Heljan's older model remains a firm favourite with OO gauge diesel era modellers, the tooling is no longer fit for production and in the years since it was first released, technology for features such as DCC sound and