zBR Cl.56 Co-Co 56047 -Era 7HOR R30073 Hornby BR, Class 56, Co Co, 56047 Era 7 The British Rail Class 56 Type 5 Co Co diesel locomotive was first introduced in 1976 to cope with the increased requirement for heavy freight. British Rail awarded the contract to design and build these new engines to Brush Traction in Loughborough, who subsequently sub contracted the construction to Electroputere in Romania, due to the lack of capacity in their own works. The initial 30 locomotives