 Four flash evaporators and a reverse-osmosis unit desalinate sea water to produce 1000 tons of fresh water daily.There is also a sanitation system and sewage disposal plant, air conditioning plant, and an electro-hydraulic steering system.On 30 December 1964, Cunard placed an order for construction of the new ship with John Brown and Company, who would build it at their shipyard in Clydebank, Scotland.