From this question, manufacturers use "counterweight" or "ballast" when producing aircraft. Why is the use of weight necessary? Supposedly aircraft should be made as light as possible, and counterweight is just dead weight without any function.

I presume it is used to balance some centre of gravity, but why would that be necessary? With industrialized factories, components can be engineered to great accuracy, so a case-by-case adjustment to account for manufacturing errors should not be needed.

From this question, manufacturers use "counterweight" or "ballast" when producing aircraft. Why is the use of weight necessary? Supposedly aircraft should be made as light as possible, and counterweight is just dead weight without any function.

I presume it is used to balance some centre of gravity, but why would that be necessary? With industrialized factories, components can be engineered to great accuracy, so a case-by-case adjustment to account for manufacturing errors should not be needed.

From this question, manufacturers use "counterweight" or "ballast" when producing aircrafts. Why is the use of weight necessary? Supposedly aircrafts should be made as light as possible, and counterweight is just dead weight without any function.

I presume it is used to balance some central of gravity, but why would that be necessary? With industrialized factories, components can be engineered to great accuracy, so a case-by-case adjustment to account for manufacturing errors should not be needed.

From this question, manufacturers use "counterweight" or "ballast" when producing aircraft. Why is the use of weight necessary? Supposedly aircraft should be made as light as possible, and counterweight is just dead weight without any function.

I presume it is used to balance some centre of gravity, but why would that be necessary? With industrialized factories, components can be engineered to great accuracy, so a case-by-case adjustment to account for manufacturing errors should not be needed.