What makes a weapon anti-air or anti-tank? Would anti-air be effective against tanks? Could we create one weapon that covers both, or even all possible targets?

Question

What makes a weapon anti-air or anti-tank? Would anti-air be effective against tanks? Could we create one weapon that covers both, or even all possible targets?

In: 864

Answer 1

Anti-air needs to be hella fast to reach planes. Anti-tank needs to punch through very thick tank armor. A weapon that you describe already exists: the [Swiss Air Defense Anti-tank System](https://en.wikipedia.org/wiki/Air_Defense_Anti-Tank_System)