submarines

A robotic swarm of "ring-wing" submarines could someday scout underwater locations for oil.

Engineers from GO Science, an engineering firm specializing in aerodynamic robots, have struck a $10 million deal with an unnamed oil company. GO's ring-wing foil concept has applications for aerial vehicles as well, but the startup company has currently focused on undersea flyers.

Chinese locals have already demonstrated a knack for knocking together homemade flying contraptions and robots. Now one amateur inventor has created a full-fledged submarine built primarily from discarded oil barrels and tools bought at a second-hand market.

Between scientists warning of autonomous killer robots and a Predator drone killing Osama bin Laden's son, news about killer robots has been eating up a lot of bandwidth lately. But most of that press has focused on the Air Force's Predator and Reaper unmanned aerial vehicles (UAVs).

In a world of rapidly evolving threats, every branch of the military is looking for a way to respond as quickly as possible. But whereas the Air Force, Army and Marines can simply fly to whatever hot spot flares up next, the Navy, by its very nature, still needs to sail. That's where the Underwater Express comes in.

Currently, the Navy's fastest submarine can only travel at 25 to 30 knots while submerged. But if everything goes according to plan, the Underwater Express will speed along at 100 knots, allowing the delivery of men and materiel faster than ever.

On May 31, the unmanned submersible Nereus became only the third craft ever to reach the full depth of the Marianas Trench, 35,770 feet below sea level. Built by the Woods Hole Oceanographic Institution, the sub is a hybrid of a remotely operated vehicle (ROV) and autonomous underwater vehicle (AUV). The Nereus runs on its own battery power, but researchers on a mother ship send it commands over a single hair-thin fiber-optic line that’s 25 miles long but weighs just 1.35 pounds.

It sounds like a Hollywood concept, but DARPA wants to make the submersible aircraft a reality -- and they need your help. This week, the Defense Advanced Research Projects Agency put out a request for designs: they want a vehicle with a 2,000-pound capacity that can cover an area of about 1,000 nautical miles, fly that distance in just eight hours, and -- by the way -- fly both above and below water.

Nautical engineers have long dreamed of a craft that could race across wave tops like a speedboat and seconds later dive beneath them like a submarine. But crossing the two breeds presents a catch-22: Subs need heft to sink, but speedboats need to be lightweight to go fast. With an investment of nearly $2 million and years of research, former auto-shop owner Reynolds Marion of Lake City, Florida, has finally hit on a solution, a machine he’s dubbed the Hyper-Submersible Powerboat. When complete, it will reach speeds of up to 45 mph and dive down to 1,200 feet.

Leaning from a low-flying helicopter to shoot a fast-moving military boat. Zooming in on a tiny bee equipped with a radio transmitter. Feeling the heat while snapping a car explosion just meters away. These are a few of the adventurous scenarios John B. Carnett has found himself in while on assignment for Popular Science.