allveesõidukid
Allveesõidukid are watercraft designed to operate underwater. They encompass a wide range of vehicles, from small, unmanned submersibles used for research and exploration to large, crewed submarines employed for military and scientific purposes. The fundamental principle of an allveesõiduk is its ability to submerge beneath the surface of the water and navigate in that environment.
The buoyancy of an allveesõiduk is controlled by ballast tanks. By filling these tanks with water, the
Historically, allveesõidukid have played significant roles in naval warfare. Modern military submarines are equipped with advanced