首批系列4转向架不久将在新的有驾驶台的拖车上装用,在西海岸干线运行。由英国铁路工程公司研制的这一转向架系列的其它几种型式转向架,包括窄轨、准轨和宽轨转向架,最高速度可达225km/h。在开发过程中,广泛采用了计算机设计与分析技术。试制转向架达到了英国铁路和国际铁路联盟规定的极限要求,试运速度达233km/h,创造了内燃牵引客车的新的世界纪录。转向架构架采用空心横梁,既能根据使用范围改变形状,又能保持标准件、生产工 The first series of 4 bogies will soon be outfitted with the new tractor-equipped trailer and run on the West Coast mainline. Several other bogies of this bogie line, developed by British Rail Engineering, include narrow-track, quasi-track and wide-track bogies with speeds up to 225km / h. In the development process, extensive use of computer design and analysis technology. Trial bogies met the limits set by the British Railways and the International Union of Railways. The test run speeds reached 233km / h, creating a new world record for internal combustion towing buses. Bogie frame hollow beams, both according to the use of change shape, but also to maintain standard parts, production workers