IMO, it's one of his finest works. It's honest..before he turned to the espionage techno-thriller genre. A good read.
Note: I recall reading somewhere that if you went into the Artic waters, your survival time was less than 2 minutes.
**His first novel, “HMS Ulysses” is loosely based on PQ-17.**
I read that 51 years ago! Excellent book on the terrors of arctic warfare.
The ship is sunk, men are in the water crying for rescue! You get a Ping that an enemy sub is beneath you, you drop a depth charge hoping to nail the enemy sub, but you know the concussion will also kill the men in the water.
Painless way to die though. The sudden drop of temperature would stop your heart and the cold numbs all sensation.