Before revision: Main generator The electric generator in a diesel-electric locomotive that is coupled directly to the prime mover and feeds electrical energy to the traction motors Main reservoir The compressed-air tank of a locomotive containing source air for the brakes and other pneumatic appliances Mallet A type of articulated locomotive designed by the Swiss mechanical engineer Anatole Mallet (pronounced "mallay").
After revision: compoundMain generator The electric generator in a diesel-electric locomotive that is coupled directly to the prime mover and feeds electrical energy to the traction motors Main reservoir The compressed-air tank of a locomotive containing source air for the brakes and other pneumatic appliances Mallet A type of articulated locomotive designed by the Swiss mechanical engineer Anatole Mallet (pronounced "mallay").