The largest kind of warship of all time, the nuclear-powered US Nimitz Class is a ship that is simply a force to be reckoned with I say. It can carry around a hundred aircraft and is among the longest warships ever made being a little over thousand feet long. They can carry thousands of crew members, Marines, pilots and even high command onboard. Their rods can serve for almost fifty years and then they will be decommissioned. They cost 4.5 billion dollars back in the 1980s and 1990s. They will eventually be replaced by Gerald R. Ford Class carriers that will be roughly same in size but will cost an astronomical 12 billion$.