See "super cavitation" (to surround the weapon with gas bubbles, thereby virtually eliminating the drag problem). Also notice in the second comment, that the torpedoes can be posted on land to be fired at sea targets. It's apparently Russian hardware.
http://www.freerepublic.com/focus/f-news/1607940/posts?page=22#22
http://www.freerepublic.com/focus/f-news/1607940/posts?page=40#40
But it seems to me that such torpedoes would be very loud underwater, and our Navy has range and mobility. ...no doubt that our Air Force and Navy can completely neutralize the threat before it is even fired or even evade it if desired.
When a torpedo is in the water, you don't care about the noise. All you care about is closing range and bearing rate of the incoming torpedo.
This critter is designed to be a slap shot weapon. A quick return (revenge) shot after the enemy has already launched a conventional weapon. If the target returns fire (the slap shot), there's already all kinds of noise going on, so noise is not important. What matters is if the target has a good firing solution on you, or is he's just guessing and shooting back down the reciprocal bearing? ...
At 200 kts, Squall can cover its ~7,500 yd range in about 80 seconds. You'll have to identify it, get a bearing rate, then decide to dive, blow, or maneuver (, or not) in a very short period of time. You can't outrun it, you have to be where it isn't going to be.
A good outcome is not likely for either ship.
As a first launch weapon, it'll be a very bad thing to be down range.