Supercavitating torpedoes trade agility for extreme speed

What are the practical limits of supercavitating torpedoes?

They can be extraordinarily fast, but maneuvering and practical implementation remain severe constraints.

Shkval is described as a solid-fuel rocket torpedo intended to reach about 200 knots, with limited manoeuvrability. Its speed makes accurate targeting especially important because it must reach the moving target's position at the right moment. A miss can carry it far beyond the target. The discussion then considers whether a submarine could evade vertically, while recognising that surfacing could expose it to follow-up weapons. These tactical suggestions remain tentative: Alex Clarke identifies his expertise as naval history and says he would normally check such ideas with a retired submariner.