Question: when does harmony of the seas start sailing
Answer: 35 billion ( 2015 ) Yard number : A34 Laid down : 9 May 2014 Launched : 19 June 2015 ( float - out ) Acquired : 12 May 2016 Maiden voyage : 29 May 2016 In service : 15 May 2016 Identification : Call sign : C6BX8 IMO number : 9682875 MMSI number : 311000396 DNV GL ID : 33249 Status : In service General characteristics Class and type : Oasis - class cruise ship Tonnage : 226,963 GT 257,566 NT 20,236 DWT Displacement : Approximately 120,000 t ( 132,000 short tons ) Length : 362.