What Grafton's survival suggests about Gallipoli

Grafton's survival gives the proposal an empirical starting point: bulges could keep an old protected cruiser afloat after a modern torpedo hit. The concept uses old cruisers and pre-dreadnoughts as robust one-way minesweepers that keep moving after detonations and open a channel for the fleet. Buoyant filling and sealed compartments would increase their ability to absorb damage. The old ships could still be lost, and their minimal or volunteer crews would face high risk.