It depends on the type of boat (Fast-Attack, Ballistic Missile, Cruise Missile), the mission, and the state of world affairs.
FBM submarines are on a 3 month rotation schedule, since they have 2 crews for each boat; the boat spends 1 month for crew transfer and maintenance, then time for sea trials, drills, etc., before heading to their patrol area for several weeks.
Fast-Attacks typically don't have a set schedule - they can be gone for Monday-Friday ops, gone for 2 weeks, 2 months, 4 months, etc. It just depends on the boat's mission at the time, be it actual operations, certifications, training, etc.
Global affairs can alter a boat's mission time as well, or inclement weather like hurricanes which might require an emergencie sortie (underway) from port to avoid the storm.
But no matter how long you're gone, there's always something to do.....
None
Submarines armed with nuclear ballistic missiles
During World War I, the primary instrument used to detect the sound of submarines was the hydrophone. This underwater listening device allowed ships to detect the noises made by submarines, such as engine sounds and propeller movements. Hydrophones were often deployed in arrays and played a crucial role in anti-submarine warfare, helping to locate and track enemy submarines.
We know one Japanese sub was there for certain; it sunk the carrier Yorktown and destroyer Hamman with one torpedo salvo. Japan deployed about 13 submarines for the Midway operation, including the I-168, which sank Yorktown and Hamman as mentioned above. The U.S. had 19 submarines stationed on patrol lines around Midway but they had little direct impact on the battle.
Hitler tried to stop the flow of supplies to England by destroying the convoys of supply ships. He deployed u boats (submarines) with torpedoes to hunt and sink the ships. When he deployed several u boats hunting as a team these were known as wolf packs.
Usually about a year.
There's a Naval Submarine Base at Point Loma, in San Diego CA. The Navy uses a cyclic system that normally always have at least one Submarine Deployed.
Individuals are deployed on long-term travel to locations that preclude them from filing interim vouchers?
IJN subs were deployed for "fleet warfare", not merchant raiding. The costly job of sinking allied warships fell to the IJN sub fleet. It's estimated that IJN submarines sank less than 50 merchant ships during the war.
Navy SEAL officers can get deployed for as long as 8 to 10 months out of the year, not counting the times that they will be gone for training also.
In the Navy, "deployed" refers to the assignment of naval forces to a specific location or mission, often away from their home base. This typically involves ships, submarines, or aircraft being sent to operate in various theaters around the world for training, combat, or humanitarian missions. Deployment can last from several months to over a year, depending on the mission requirements.
they can be in different sizes such as being long or short or huge and small