Submarines maintain stability in turbulent waters due to their streamlined, hydrodynamic design, resembling the shape of dolphins. A low center of gravity is crucial for submarines, with heavy equipment and ballast tanks positioned low in the structure to prevent tipping.
Submarines utilize a double hull design, consisting of a pressure hull for strength and an outer hull for stability and protection against water impact. Ballast and trim systems allow submarines to control buoyancy, achieving neutral buoyancy to maintain a steady course underwater.
The process of diving involves flooding ballast tanks with seawater to increase weight, while resurfacing requires blowing air into these tanks to expel water. Crew members undergo extensive training to manage complex systems, respond to emergencies, and maintain stability during operations. Submarines can dive deep to escape rough surface conditions, allowing them to operate efficiently even in adverse weather.