👉 Subsized ship, also known as a subsea ship or a submarine, is a type of underwater vessel that is designed to carry cargo and personnel. It typically has a larger size than a conventional land-based ship and can be used for tasks such as transporting goods, conducting research, or operating in the ocean. Subsized ships are often built using lightweight materials like steel or aluminum, which makes them lighter and more maneuverable than traditional vessels. They have large hulls that provide stability in