The concept of using submarines for drug smuggling emerged in the 1990s, with initial sightings reported in Colombia. Early versions were rudimentary, often referred to as "semi-submersibles ...
Drilling 101: How do drillships and semi-submersibles stay on location with pinpoint precision, enabling us to drill wells? Dynamic positioning! Watch this video to learn more about it from Matt ...
after submarines laden with cocaine and bound for Australia were intercepted by Colombian authorities. The warnings come after a semi-submersible, crafted from wood and fibreglass and loaded with ...