[DocRock]

Typical countermeasures can collapse the cavitation bubble causing the high speed torpedo to “slam” into the opposite side of the bubble. The problem is getting the countermeasures in play fast enough.

[Yo-Yo]

There is also the issue of tracking while inside of the cavitation bubble, or getting an external guidance command wire to remain intact at that speed.

This class of torpedo is best suited to deliver an unguided tactical nuclear payload, where precision is not necessary.

Because of this, an Iranian version is no threat until they can miniaturize a nuclear warhead sufficiently to fit inside of the torpedo.