allveesõiduk
Allveesõiduk is the Estonian term for an underwater vehicle. This broad category encompasses any craft designed to operate submerged beneath the surface of the water. Allveesõidukid can range significantly in size, purpose, and complexity, from small, remotely operated vehicles (ROVs) to large, crewed submarines.
The primary functions of allveesõidukid are diverse. Historically, military submarines have been prominent, utilized for defense,
Allveesõidukid can be broadly classified into several types. Manned submersibles require a crew and are often