30. Full Steam Ahead!
The Titanic II will have the same maximum speed as the original of 24 knots and would feature a larger rudder and a modern diesel engine instead of steam boilers. One knot is approximately 1.15 mph, making the maximum speed of the ships around 27 or 28 mph.
The official world water speed record is 275.97 knots, or about 318 mph, though the average rate of a cruise ship is typically between 20 – 30 knots.
