Answer: Olympic and Britannic
The Royal Mail Steamer Olympic and the Royal Mail Steamer Britannic were both built in Belfast, Northern Ireland. Olympic was the first sister to be launched, ahead of Titanic, Britannic (formerly designated Gigantic) was launched much later though from the same slipway. RMS Britannic was commissioned by the British Government for use as a hospital ship, during which time the name was changed to match its duty: HMHS Britannic. It sank shortly after either hitting a mine or being torpedoed (the reason is still uncertain but the former is considered most likely). RMS Olympic was also utilised in war service, however it ended its long life in 1935 at the breakers yard due to old age. However during its service it sank a German U-Boat by ramming it, also sank many ships and damaged others (accidentally, the most famous of which was the Nantucket Lightship. During this incident 7 of the 11 crew members of the lightship were killed when the Olympic cut it in two in heavy fog. The Olympic was only doing 3-4 knots at time of impact.
HMHS Britannic and RMS Olympic
Titanic had two sister ships; the sister ships were the Britannic and the Olympic.
The name of the Titanic's sister ship was the Olympic.
The Titanic had two sister ships. They were the Olympicand the Britannic.
Titanic had only sister ships. Vessels are only referred to in a female designation.
The sister ships of the titanic were called the olympic and the britannic.
There were two sister ships - the RMS Olympic and the HMHS Britannic.
Titanic had two sister ships; the sister ships were the Britannic and the Olympic.
Both of the two sister ships of Titanic were Olympic and Britannic.
The sister ships of Titanic were Olympic and Britannic.
The name of the Titanic's sister ship was the Olympic.
The Titanic and Britannic were the sister ships of the Olympic
Titanic and her sister ships were made in responce to the two new Cunard line ships Mauretania and Lusitania.
The Titanic had two sister ships. They were the Olympicand the Britannic.
The third-and-final of the three sister ships was the HMHS Britannic.
Titanic had only sister ships. Vessels are only referred to in a female designation.
The sister ships of the titanic were called the olympic and the britannic.
The Titanic's sister ships were called the Olympic and the Britannic. The Olympic was the 'lead ship' and built first. The Britannic was built after the Titanic and was originally going to be called the Gigantic.