Why charge size alone does not predict torpedo or mine damage

The panel declines to give a universal smallest damaging charge because modern torpedoes and mines aim to break a hull through an under-keel effect, making attack method as important as explosive weight.

Question

What is the smallest mine or torpedo charge that can seriously damage a modern warship?

Short answer

There is no universal figure; the panel says under-keel attack method matters as much as charge weight when the aim is to break the hull.

Notes

The question asks for the smallest practical explosive charge that can seriously damage a modern warship. After a deliberately absurd numerical joke, the panel redirects attention from explosive weight to the way the weapon attacks the hull. Modern torpedoes and mines are described as breaking a ship's back by creating a void or vacuum beneath it. The actual charge is chosen for that mechanism and target rather than from one universal threshold. The reply therefore supports no single minimum figure.