 Ships transitioned from all sail to all steam-power during from the mid 19th century into the 20th.Five-masted "Preussen" used steam power for driving the winches, hoists and pumps, and could be manned by a crew of 48, compared with four-masted "Kruzenshtern", which has a crew of 257.Coastal top-sail schooners with a crew as small as two managing the sail handling became an efficient way to carry bulk cargo, since only the fore-sails required tending while tacking and steam-driven machinery was often available for raising the sails and the anchor.