5 ms·

Some fleets have implemented special bottom paint to reduce drag by reducing algae growth.

• adrianN 8y ago
  I wonder how long a magnetic cleaning robot could survive on the hull of such a ship.
  • superkuh 8y ago
    After manned narco subs and towed sub capsules were mitigated by new police efforts drug traffickers experimented with magnetically attached parasite containers on the side of large shipping boats. But they didn't have to move.
    • Timmah 8y ago
      How do they mitigate narco subs? Sonar patrols I presume?