GR331 Pack of 3 Hudson "Rugga" V-Skip Wagons - GreyGR331 The familiar "Rugga" V Skip "tipping" wagon design was introduced in the 1930s, a development of the Robert Hudson company, based in Leeds. They could be supplied to the customer's specific requirements, with a skip size ranging from 13. 5 to 54 cubic feet (0. 38 to 1. 53 cubic metres), and in most track gauges. The design allows the skip to tip in either direction, perfect for small industrial railways that needed to move and unload materials