AN AIRCRAFT CARRIER FLOATING IN THE WATER IS NEUTRALLY BUOYANT. IT DISPLACES WATER WHICH IN TURN THE WATER APPLIES A FORCE TO THE SHIP SUFFICIENT ENOUGH SO THAT THE SHIP DOES NOT SINK, BUT NOT ENOUGH SO THAT THE SHIP IS FORCED OUT OF THE WATER. THE DOWNWARD FORCE OF THE SHIP AND THE UPWARD FORCE OF THE WATER ARE IN EQUILIBRIUM RESULTING IN THE AIRCRAFT CARRIER HAVING A WEIGHT OF 0 UNITS.