Britannic became the largest Olympic-class ship and received substantial safety changes after Titanic's loss. Her beam increased to 94 feet to accommodate a double hull around the engine and boiler rooms, and watertight bulkheads rose to B deck. Improved subdivision was intended to keep her afloat with six compartments flooded. An 18,000-horsepower turbine replaced the earlier 16,000-horsepower installation to compensate for the wider hull while maintaining speed. More lifeboats, improved launching equipment, and lifts reaching the boat deck also addressed evacuation problems. These changes increased the ship's safety margin, though survival still depended on the damage pattern and on keeping openings closed.
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How Britannic incorporated lessons from Titanic
Britannic's altered subdivision, lifeboat arrangements, and hospital access show how White Star responded to Titanic without eliminating every vulnerability.