Complex sentence: The ships would have had a beam of 101 ft (30.8 m) and a draft of 31 ft (9.5 m) and would have used 4 propeller shafts, powered by Gihon turbines.
Split into simpler sentences: The ships would have had a beam of 101 ft (30.8 m) and a draft of 31 ft (9.5 m). Gardiner, Gray, and Budzbon, p235 The ships would have used 4 propeller shafts, powered by Gihon turbines.