not very cost-effective, using a nuclear-powered submarine to sink a fishery ship. the German (merchant) navy uses flagged out cargo ships to successfully attack Indian navy vessels
The music is the matchmaker screen theme from World of Warships, BTW.
Which is somewhat ironic, as submarines are one of the few vessel types not featured in the game.
The Australian Navy prefers to restrict such sneak attacks to operations against its traditional enemy, the Australian Navy.
Doing it from inside the sub is way cooler.
I served as a Sonar Technician on two 688-class attack subs and doing an emergency main ballast tank blow from test depth was something we all looked forward to. The boat takes a pretty extreme up angle and seems to fly out of the water. Many of the ones shown in the video are more like normal, boring surfacing events.
The portion that showed a boat surfacing through the ice is a controlled evolution and is approached very carefully. You can’t do it just anywhere. You need to locate a thin spot in the ice or one that’s open (AKA polynya) using your under-ice sonar’s upwards-looking profiler (basically an upside-down high resolution fathometer), position the ship underneath and then gradually increase buoyancy until the sail just touches the ice. Once it’s there and the ship has prepared by retracting antennas deeper into the sail and the bow-planes or fairwater planes positioned correctly, they pump out massive amounts of water to increase buoyancy until the boat breaks through the ice.
Youtube is full of emergency surfacing videos including some shot inside:
https://www.youtube.com/results?search_query=submarine+emergency+surfacing
Or even:
Submarine/plane combo action!
FAB Scott.
What amazes me and is somewhat lost in translation in the videos is the MASSIVE scale of these subs. I worked in a shipyard as a nuclear pipe fitter in a previous lifetime and the first time I got up close to one of those monsters (Los Angeles-class) I could not believe how big they were. To be nearby when one of the babies popped out of the sea would certainly be a surprise.
At this point, my Dad would stop you to tell his “Diesel Fitter” joke that is bad and horrible and is linked here so you can groan after reading it.
Grooooooooooan! 
I heard the same joke, but differently.
Because I have no shame, I’ll post it here:
Jim went to the unemployment office to get a job. He told the lady he was a pilot. She said she had a job for him and to start in the morning.
Bob, his brother, also went to get a job after his brother told him how he got his job. He told the same lady he was a woodcutter. She had no jobs for a woodcutter. He asked how his brother was able to get a job so easily. She got Jim’s folder and said, “He’s a pilot”. Bob looked at the
lady and said: “Well Jim can’t pile it until I cut it.”
Like a wine cork, but BIGGER.
Utterly irrelevantly and unrelated to the thread in any way whatsoever:
Irishman is looking for a job on a building site. The foreman looks dubious. The Irishman says “Ask me a question. Any question”
“OK, what’s the difference between a joist and a girder?”
“That’s easy. Joyce wrote Finnegans Wake and Goethe wrote Doktor Faustus.”
It also depends on the seaman-carrying capacity.
Also irrelevantly, and probably not so true of modern submarines, a former colleague took the surrender of a submarine of the Kriegsmarine during WW2. The captain, apparently a fanatical Nazi, hadn’t wanted to surrender, so the crew shot him.
My former colleague descended into the submarine and, he said, the smell of Sauerkraut and Diesel oil made him feel immediately sick. He said that he completely sympathised with the crew wanting out.
It’s an aspect of submarines we tend not to think of, because of course film doesn’t reproduce smells.
Das Boot does come about as close as film can get to recreating this. 
Books are better for what it’s like to be in someone’s head. It’s been years since I read it, but I remember that Iron Coffins, by Herbert A. Werner gave some really good descriptions. One of my favorites was when the sub got stuck in the mud at the bottom and they all had to run back and forth from one end of the boat to the other, jumping up and down to try to rock it free, knowing that if that didn’t work they’d suffocate to death down there. I also read a couple from the U.S. perspective (Pacific theater) that were pretty good too, but don’t recall the titles.
Some reviewer’s descriptions on Amazon:
“It is hard to imagine how the crew lived like they did in their constantly rocking boat: without bathing for months, eating moldy food, suffering from constant humidity, freezing or roasting as the season might be (no airconditioning or heaters), and not having proper sanitary conditions (using a bucket in rough seas, etc.) Very good detail on u-boat life both aboard ship and in port.”
“When you come away with an idea of how it felt, right down to how it even smelled inside the U-Boat on patrol, the author has done a great job.”
There is the other terrors of serving on a sub. My brother graduated from the Navy Nuke school, and I was like, “Don’t get on a sub. Every single sub movie is full of people dying one by one as the compartments fill up.”
