Underwater vehicles are particularly small transport device with electric engine and relative rechargeable battery, dry fitted and shaped for best penetration in the water. They are used to save energy during swimming and scuba dive activity. The high powered models are used for technical diving to explore cave system and help the diver to trasport heavy equipment and spare air bottles.
This category has the following 4 subcategories, out of 4 total.
Media in category "Underwater vehicles"
This category contains only the following file.
- A U.S. Navy unmanned u...