original: the british rail class 91 is a class of 140 mph -lrb- 225 km / h -rrb- , 4.54mw / 6,300 hp electric locomotives ordered as a component of the east coast main line modernisation and electrification programme of the late 1980s .
simplifications: the british rail class 91 is a class of 140 mph electric locomotives ordered as a component of the east coast main line modernisation and electrification programme of the 1980s . the british rail 91 is a class of 140mph , 4.5mw / 6300hp loocomotives ordered as a component of the east coast main line modernisation and electrification programme of 1980s the british rail class 91 is a class of 140 mph -lrb- 225 km / h -rrb- , 4.54mw / 6,300 hp electric locomotives -lrb- a powered rail vehicle used for pulling trains -rrb- ordered as a part of the east coast main line modernisation -lrb- making modern in the appearance -rrb- and electrification -lrb- the process of powering by electricity -rrb- programme of the late 1980s . the british rail class 91 is a class of 140 mph -lrb- 225 km / h -rrb- , 4.54mw / 6,300 hp electric locomotives ordered as a component of the east coast main line modernisation and electrification programme of the late 1980s . the british rail class 91 is a group of 140 mph -lrb- 225 km / h -rrb- , 4.54 mw / 6,300 hp electric trains ordered as a part of the late 1980s east coast main lines effort to modernize and electrify them . the british rail class 91 , consists of 140 mph -lrb- 225 km / h -rrb- , 4.54mw -lrb- 6,300hp -rrb- , electric locomotives which were ordered as a component of the east coast main line modernisation and electrification programme of the late 1980 's . the british rail class 91 is a class of 140 mph , 4054 mw / 6,300 hpf electric locomotives ordered as a component of the east coast main line modernisation and electrification programme of the late 1980s . the british rail class 91 is a class of 140 mph , 4.54mw / 6,300 hp electric locomotives ordered as a component of the east coast main line modernisation and electrification programme of the late 1980s .