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The SS Great Britain was the first propeller-driven, ocean-going iron ship. Launched in 1843, it was designed by Isambard Kingdom Brunel and built in Bristol, England. The ship was a marvel of engineering, featuring a wrought-iron hull, a screw propeller, and a steam engine. It was also the first ship to use a watertight compartment design, which improved its safety in the event of a hull breach.