As I indicated, I didn't mind a little water to add weight and ballast to make up for the lighter fuel tanks.
Accumulated weight and sinew add ballast to the spirit, give it a center of gravity.
Sailors add ballast to improve the stability of ships.
Tasslehoff climbed inside, hoping his small body might add ballast.
The effect is the opposite of adding ballast.
They added ballast low in the boat to make her more stable.
With a semi-trailer, the weight of the trailer presses down through the fifth wheel and adds ballast.
Adding ballast to the nose of the aircraft cured the problem.
The reduction of buoyancy by jettisoning lift gas or adding ballast.
This can only be achieved by adding weight, or ballast.