Law enforcement agents in Ecuador discovered a fairly modern, long-range submarine built by narcotics smugglers. It was about to launch for a trip to North America: The sophisticated camouflaged vessel has a conning...

(YouTube Link) There's an annual remote control submarine regatta in Canberra, Australia. Here's a 2008 video of a RC surface warship in a pool dropping exploding depth charges on a RC submarine cruising beneath it....

Photo: China Daily Tao Xiangli, a Chinese inventor, is reported to have built a functional submarine: Amateur inventor Tao, 34, made a fully functional submarine, which has a periscope, depth control tanks, electri...

These drones include both aerial and surface c...  ...cations. “The [concept] is to launch these from submarines at night,” Kenny said. “They will transit to...