Manchester Challenge Engine Room - 1971, showing the two V18 Crossley-Pielstick PC2V engines with four turbochargers per engine (two per bank). These engines were each rated at 9,000 BHP and were coupled to a gearbox driving a single KaMeWa Controllable Pitch Propeller.

The engines were started on marine diesel fuel and then changed over to run on heavy oil when not in a seaway. i.e. when deep-sea. Each engine ran at 450 rev/min and drove a shaft alternator. One shaft alternator could run the entire vessel. There were also two V8 auxilliary Paxman generators.