office of naval research

Oorah! Marines to get hybrid power generators for the field

U.S. Marines may have a reputation for persevering in primitive conditions and dealing with whatever comes their way, but they like their electricity just like everyone else.

Yet bringing fuel-guzzling generators with them when on forward deployment is inefficient work, requiring carting around heavy loads of diesel and taking a toll on the local environment.

But not for much longer. Today, the Office of Naval Research awarded Raytheon a contract to develop a hybrid power generator for the Marines, a system that when completed should help Marines in the field consume as much as 40 percent less fuel than … Read more

How the Navy's super railgun works (animation)

If you want to know how the U.S. Navy's futuristic electromagnetic railgun works, you could hop on over to the information page on the Office of Naval Research's Web site. Or you could watch a monotone Taiwanese animation.

If you're not familiar with the railgun, it's a favorite Navy project that is intended to be able to launch a 5-inch projectile more than 100 miles without the use of traditional explosives. Using a complex system that forces the projectile out of a ship-bound gun at more than 4,500 miles, the Navy hopes to be … Read more

Navy tests railgun that can shoot up to 100 miles

The U.S. Navy says it has tested one of two prototypes of its futuristic electromagnetic railgun, a weapon that could fire a 5-inch projectile up to 100 miles, yet which requires no explosives to fire.

The Office of Naval Research is evaluating competing railguns--one from BAE Systems, and one from General Atomics. Yesterday, ONR announced it has completed a successful test of BAE's model, and the Navy is expected to test-fire General Atomics' offering sometime in April.

"The firing at Naval Surface Warfare Center Dahlgren Division...kicks off a two-month-ling test series by [ONR] to evaluate the … Read more

Wobble-proof Navy crane can offload cargo at sea

The U.S. Navy has completed testing on a new automated ship crane that can safely perform ship-to-ship cargo transfer while at sea and compensate for surging waves, eliminating the need for a secure deep-water port in emergency or combat situations.

The Large Vessel Interface Lift On/Lift Off (LVI Lo/Lo) Crane can also facilitate standard supply transfer to ships in choppy seas. Developed by the Sea Warfare and Weapons Department in the Office of Naval Research along with Oceaneering International, the crane has sensors and cameras as well as motion-sensing algorithms that let it automatically shift with the … Read more

Keeping your boat's bottom shipshape

The U.S. Navy may have developed a solution to hull-dwelling barnacles and slime--a "foul" problem that has plagued sailors and their ships since Noah launched the ark.

The Office of Naval Research (ONR) has developed what looks like a combination pressure washer/minisub called the Hull Bio-inspired Underwater Grooming, or Hull BUG. It's designed to prevent or suppress the growth and build-up of nuisance marine growths such as barnacles--also known as biofouling (PDF).

This could be a major breakthrough. High-performance warships and submarines rely on a clean hull for speedy acceleration and hydroacoustic stealth--things that crustaceans … Read more

Turbine-electric hybrid VTOL attack drone flies again

The Excalibur, a new turbine-electric hybrid propelled VTOL (vertical takeoff and landing) unmanned attack drone, has successfully completed another test flight after taking on two new onboard computers last week.

Developed by Aurora Flight Sciences Corp. for the U.S. Army Aviation Applied Technology Directorate and the Office of Naval Research, the Excalibur is another radical robo-craft concept vying to fill the military's burgeoning demand for specialized UAVs.

The demonstrator model, weighing in at 700 pounds, can hit 520 mph, making it one of the fastest drones around, according to the Aurora. The nearly autonomous flight control system allows … Read more

Hydrogen-powered UAV in the works

In what it says is a "first of its kind" initiative, the U.S. Navy plans to launch sometime this spring an unmanned aerial vehicle for a 24-hour endurance flight carrying a 5-pound payload and powered entirely by a hydrogen-powered fuel cell.

Called the Ion Tiger, the UAV can travel farther and carry heavier loads than earlier battery-powered designs, according to the Office of Naval Research. It also boasts "stealthy characteristics" such as reduced noise, low heat signature, and zero emissions (PDF).

"This will really be a demonstration for a fuel cell system in … Read more

Navy picks companies to build T-Craft model

The U.S. Navy has selected two companies to develop a Transformable Craft capable of ferrying heavy tanks from ships at sea, through the surf, and onto beachheads around the world.

The Office of Naval Research (ONR) wants a T-Craft that does 40 knots, carries at least six tanks, and is able to survive 57-knot winds and 60-foot waves. It must also mitigate wave motion, to allow the transfer of vehicles from one ship to the other while rocking on the high seas.

To accomplish that, the companies Alion Science and Umoe-Mandal will need to develop and deploy some combination … Read more