Reddit reviews Nimrod Rise and Fall

Jets have an advantage over prop aircraft or helicopters in that their acoustic signature is less obvious from a submarine. I'm only familiar with the history of the Nimrod, a very capable large maritime reconnaissance jet based on the Comet. That could do things like dropping a collection of sonar buoys to locate a sub, followed by torpedos to kill it. It could shut down two engines to fly slowly, and bank heavily to remain over the area of interest. Apart from the sound issue, endurance was far better than for a helicopter as well.
Very bad news if you were in a sub (or another MR plane, since at one time it was equipped to hunt them down over the South Atlantic).