The Class 66 is a heavy-freight diesel-electric locomotive, a development of the earlier Class 59 which was a great success in the UK with Foster Yeoman. Like its predecessor, EMD Co-Cos have all been built in North America, with 480 supplied to UK operators between 1998 and 2008 and 2014 and 2015. Many more were bought secondhand from mainland European operators, so it is no surprise that these machines handle the lions share of freight traffic in the UK today. Despite being called sheds by enthusiasts because of their shape, they have carried many colourful and innovative liveries. No. 66723 Chinook is in GBRf blue and orange livery, and is named in honour of the RAFs 7, 18 and 27 Squadrons based at Odiham in Hampshire. This is also the home of the CH-47 Chinook heavy lift helicopter, one of which adorns each side of the locomotives body.What's in the box? 1x Locomotive Instructions