The Quantum class is a class of cruise ships from Royal Caribbean International, previously known by the code name Project Sunshine. History Quantum class On 11 February 2011, Royal Caribbean announced that they had ordered the first of a new class of ships from Meyer Werft, scheduled to be delivered by Fall 2014. At the time, the project was code-named "Project Sunshine". Later that year, two 20.5-megawatt ABB Azipod XO propulsion units were ordered for that ship. On 29 February 2012, the company announced that a second "Project Sunshine" ship had been ordered and would be delivered by Spring 2015, and ordered identical Azipod propulsion units shortly thereafter. Just under a year later, on 31 January 2013, steel cutting was performed for the first ship. The same day, Royal Caribbean announced the official name of the new class of ships, Quantum class, as well as the names of the first two ships in the class, Quantum of the Seas and Anthem of the Seas. Quantum of the Seas was delivered on 28 October 2014. Quantum of the Seas spent its inaugural 2014–2015 season sailing from Cape Liberty in Bayonne, New Jersey. Beginning late June 2015, the ship began sailing three- to eight-night itineraries year-round from Shanghai to Japan and South Korea. Anthem of the Seas was delivered to Royal Caribbean on 10 April 2015. The ship spent its inaugural 2015 season sailing from Southampton, Hampshire, UK. On 30 May 2013, Royal Caribbean announced that they had signed a contract with Meyer Werft for a third Quantum-class ship for delivery in mid-2016. On 18 September 2014, the name of the third Quantum-class ship was announced to be Ovation of the Seas. Ovation of the Seas was delivered to Royal Caribbean on 8 April 2016. The ship was originally planned to homeport in Tianjin to sail in Asia, but moved to Sydney in June 2016 to begin cruising in Oceania seasonally. She debuted in Alaska in the summer of 2019. Quantum Ultra class On 7 May 2015, Royal Caribbean entered into an agreement with Meyer Werft for a fourth Quantum-class ship for delivery in 2019, subject to financing and other conditions. Royal Caribbean announced on 26 April 2017, that the fourth Quantum-class ship would not only be designed and based in the Asia-Pacific region; but will also be based on a new Quantum Ultra-class design. In June 2018, it was revealed that