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US Navy

USS Fife, a Spruance-class destroyer powered by gas turbines

Tell someone that you’ve invented a car that runs on water and they're liable to report you for fraud. That hasn’t stopped scientists and engineers at the U.S.. Naval Research Laboratory (NRL) who want to run warships on seawater - or at least, to turn seawater into jet fuel. This may sound like they’ve been standing too close to the ether again, but the idea is to extract carbon dioxide and hydrogen from seawater and then convert these into jet fuel by a gas-to-liquids process. If this proves practical, American naval vessels could refuel themselves at sea.  Read More

Concept image of the Lockheed Martin Sea Ghost

Lockheed Martin has hinted at plans for a new UAV carrier combat aircraft, known as the UCLASS Sea Ghost. This makes the American defense contractor the fourth contender for the U.S. Navy’s unmanned carrier combat aircraft contract, joining Northrop’s X-47B, Boeing’s Phantom Ray and General Atomic’s Sea Avenger.  Read More

Scientists have successfully used gallium indium phosphide solar cells to generate electri...

Although solar cells are proving indispensable for powering things such as electronic sensors on dry land, sensors located underwater have typically had to rely on batteries, or electricity piped in from photovoltaic panels situated above the surface. That could be changing, however, as scientists from the U.S. Naval Research Laboratory have recently developed functioning underwater solar cells.  Read More

The Northrop Grumman RQ-8A Fire Scout UAV helicopter is the test platform for the MMSS (Im...

Piracy on the high seas of the 21st century requires 21st century solutions. As part of the on-going effort to curb attacks on shipping, the United States Navy will use a UAV helicopter to test a new sensor system in the waters off California during the summer of 2012. This new 3D sensor package in combination with new computer algorithms will allow the Navy to more accurately identify pirate vessels hiding among innocent shipping on the sea lanes with much greater speed and much less manpower.  Read More

The first full-energy shots from the electromagnetic railgun prototype launcher captured f...

The electromagnetic (EM) railgun prototype launcher that was recently installed at the Naval Surface Warfare Center (NSWC) in Dahlgren, Virginia, has commenced firing, kicking off a two-month-long series of full-energy tests. Predictably, the first full energy shots make for some pretty impressive video.  Read More

JAGM fit check (Photo: Lockheed Martin)

With the announcement of the successful testing of a sophisticated Pneumatic Cooling System (PCS) by Lockheed Martin and industry partner Marotta Controls in December, the highly versatile Joint Air-to-Ground Missile (JAGM) weapons system is a step closer to deployment in the field.  Read More

The X-47B Unmanned Combat Air System flying with its landing gear up during a test flight ...

Having completed its first flight earlier this year, the Northrop Grumman-built U.S. Navy X-47B Unmanned Combat Air System Demonstration (UCAS-D) aircraft achieved another milestone on September 30 with its first flight in cruise mode. Part of the on-going “envelope expansion” program to demonstrate the aircraft’s performance under a variety of altitude, speed and fuel load conditions, the flight took place at Edwards Air Force Base and saw the aircraft retracting its landing gear and flying in cruise configuration for the first time.  Read More

An F-35B Lightning II makes the first vertical landing on a flight deck at sea (Photo: U.S...

The F-35B Joint Strike Fighter (JSF) has successfully made its first at-sea vertical landing. With Marine Corps test pilot Lt. Col. Fred Schenk at the controls, the short-take-off-vertical -landing (STOVL) variant of the F-35 touched-down on the deck of the USS Wasp on October 3 as part of an initial two week ship-trial period in which the aircraft's take-off and landing capabilities will be evaluated along with its ability to integrate with the ship's flight deck operations.  Read More

The US Navy has successfully flown its MQ-8B Fire Scout UAV on a blend of JP-5 aviation fu...

The US Navy has successfully flown its MQ-8B Fire Scout Unmanned Aerial Vehicle (UAV) on biofuel. The unmanned helicopter became the Navy's first UAV to use biofuel technology when it took-off on Friday over Webster Field in St. Inigoes, Maryland, running on a blend of JP-5 aviation fuel and plant-based camelina. The Navy says that the use of this blend cuts carbon dioxide output by 75 percent when compared to conventional aviation fuel.  Read More

LEAP Autonomous PowerBuoy deployed off New Jersey (Image: Michael Smith, Rutgers Universit...

Maritime surveillance and monitoring systems that require remote power at sea often rely on diesel generators that need frequent maintenance and fuel replenishment. Now New Jersey-based wave energy company Ocean Power Technologies (OPT) has commenced sea trials of an autonomous wave energy device that provides clean energy for sea-based radar and communications systems in remote ocean locations and in all wave conditions.  Read More

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