LCAC 91 Achieves High Speed on Algal Blend

U.S. Navy
Monday, December 12, 2011
Landing Craft, Air Cushion (LCAC) amphibious transport vehicle.

The U.S. Navy successfully concluded its final alternative fuel demonstration for the year today with the Dec. 7-9 operational tests of the 50/50 algae-derived, hydro-processed algal oil and petroleum F-76 blend in a Landing Craft, Air Cushion (LCAC) amphibious transport vehicle at Naval Surface Warfare Center Panama City.

 

The tests also marked the fastest speed achieved to date by a U.S. Navy surface craft using alternative fuel blends, as LCAC 91 reached speeds the crafts maximum speed of 50 knots, Dec. 7.  The fastest speed demonstrated on the 50/50 algal blend in previous tests was 44.5 knots by the Riverine Command Boat (experimental) (RCB-X) in October 2010 at Naval Base Norfolk, Va.

 

"Our Navy is working to be resilient to any potential energy future. Pursuing sustainable resources, such as alternative fuels that are drop-in replacements, assures our performance and mobility while protecting us from the volatility of the fossil fuel market.  This demonstration is another Wright Brothers-moment for the Navy.  We have shown that we can achieve more than 50 knots on the water and Mach 1.7 in the air - all on biofuel blends," said Rear Adm. Philip Cullom, director, Chief of Naval Operations Energy and Environmental Readiness Division.

 

LCACs move elements of a Marine Air/Ground Task Force - weapons systems, equipment, cargo, and personnel - from ship to shore and over the beach. The vehicles have four gas turbine engines, and two generators that traditionally run on NATO F76 or NATO F44.  They have a 7,000 gallon fuel capacity, an average range of 200 nautical miles, and can carry up to 150,000 lbs. 

 

"For the test, the craft was operated out in the Gulf of Mexico using two different fuel configurations so we could compare the craft's operations as powered by each fuel type," said Naval Sea Systems Command's Navy Fuels Engineering Manager Richard Leung. "After draining the diesel, LCAC 91 received approximately 5,000 gallons of the 50/50 algal blend.  We assessed the engine performance capabilities on the biofuel blend, and collected data on engine torque, acceleration rates, craft speed, fuel flow rates, propeller pitch, compressor discharge pressure, and inlet and exhaust gas temperatures"

 

Mechanical engineers bore scoped the engines and collected the technical data.  LCAC operators then provided input on how the craft performed and operated. "We are going to compare how the engines performed during the test both on the straight diesel and on the 50/50 mix. Results from the comparison will help us assess the performance of the fuel," said mechanical engineer Ben Canilang, NSWC Carderock's Naval Ship Systems Engineering Station, Philadelphia, Pa.

 

"To see what type of numbers came out, we connected a laptop with a harness that read into our digital and analogue data collectors," said mechanical engineer Peter Diamond.  "The type of analysis is simply comparing numbers. We'll plug in a stream of numbers and compare results from each of the tests."

 

"The test run on the 50/50 alternative fuel mix was very successful," said Scott Feenstra, mission director, Landing Craft Air Cushion, NSWC Panama City Division. "LCAC 91 performed without issue.  The operators were able to use high power; and reported that the craft handled beautifully and without problems."

 

Meeting the secretary of the Navy's call for a drop-in fuel replacement, no changes were required to the LCAC or fueling equipment infrastructures for the test.  Alternative fuel efforts also support the secretary's overall energy strategy to increase energy security and safeguard the environment; as well as his goals to demonstrate a Green Strike Group by 2012, and deploy a strike group composed completely of alternatively powered ships,"The Great Green Fleet," by 2016.
 

Maritime Reporter February 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Russia May Allow More Firms to Offshore Oil

Russia may allow more oil companies to access its offshore projects, Energy Minister Alexander Novak said on Friday.   "In general, the access can be extended," Novak told reporters in Moscow.

Garamendi Introduces Bipartisan GPS Backup Bill

Congressman John Garamendi (D-Fairfield, CA), the Ranking Member of the House Transportation and Infrastructure Subcommittee on the Coast Guard and Maritime Transportation,

Soo Locks Open for Great Lakes Shipping Season

At 12:01 a.m. on Wednesday, the U.S. Army Corps of Engineers officially opened the Soo Locks for the start of the 2015 Great Lakes shipping season.   The locks at Sault Ste.

Navy

Indonesia Partners with China on Maritime

Indonesian President Joko “Jokowi” Widodo and Chinese President Xi Jinping pledged increased maritime cooperation during the formers visit to China.   The joint

China Strengthens Maritime Ties with Pak

The Vice Chairman of China's Central Military Commission General Fan Changlong has pledged to deepen maritime security and military technology cooperation during

17 Countries for Maritime Security Training in Indonesia

Representatives from 17 countries would take part in the sixth Maritime Security Desktop Exercise that is scheduled to be held in Yogyakarta, Indonesia from March 30 to April 1.

Environmental

USCG Conducting Ice Flushing Operations

The Coast Guard cutter fleet is flushing ice through the Great Lakes river systems to prevent ice jams and facilitate commercial shipping as the shipping season

Nations Convene for Arctic Maritime Discussion

Citing an increasing need to ensure safety, security and stewardship of Arctic waters, member countries of the Arctic Council gathered at U.S. Coast Guard Headquarters

Rolls-Royce Propulsion for Polar Research Vessel

Rolls-Royce informs it has been awarded a contract by shipbuilder Fincantieri to supply a fully integrated propulsion system for Norway’s new Polar Research Vessel,

Fuels & Lubes

EALs & Oil Spill Remediation

EALs & Oil Spill Remediation: The Effects of EALs on Oil Spill and Discharge Reporting and Remediation In the wake of increased environmental scrutiny and potentially expanding liability issues,

Big Spending on Liquefaction Terminals

Capital expenditure (Capex) on global liquefied natural gas (LNG) facilities is expected to total $259 billion over the forecast period 2015-2019, according to

Brent Oil Rises as Euro Gains Against Dollar

Brent oil prices rose on Wednesday as the euro strengthened against the dollar following a boost in business morale in the euro zone's top two economies. The euro was up 0.

Marine Power

Rolls-Royce Propulsion for Polar Research Vessel

Rolls-Royce informs it has been awarded a contract by shipbuilder Fincantieri to supply a fully integrated propulsion system for Norway’s new Polar Research Vessel,

Indonesia Partners with China on Maritime

Indonesian President Joko “Jokowi” Widodo and Chinese President Xi Jinping pledged increased maritime cooperation during the formers visit to China.   The joint

Wärtsilä's' New Plant in Brazil

Following an investment of 20 million euros, Wärtsilä's' new unit will produce and test motor generators and thrusters   Wärtsilä's first unit at Porto do Açu in São João da Barra (RJ),

Naval Architecture

3D Machining Puts Wind in the Sails

With ESPRIT CAM software, Armor Mécanique has the wind in its sails; 50% time savings, better quality and new markets thanks to 3D machining Established in 1984

Changes in Aker Solutions' Top Deck

Tore Sjursen will assume the position as executive vice president for operational improvement and risk management at Aker Solutions on April 1. Knut Sandvik

Wärtsilä's' New Plant in Brazil

Following an investment of 20 million euros, Wärtsilä's' new unit will produce and test motor generators and thrusters   Wärtsilä's first unit at Porto do Açu in São João da Barra (RJ),

Eye on the Navy

China Strengthens Maritime Ties with Pak

The Vice Chairman of China's Central Military Commission General Fan Changlong has pledged to deepen maritime security and military technology cooperation during

17 Countries for Maritime Security Training in Indonesia

Representatives from 17 countries would take part in the sixth Maritime Security Desktop Exercise that is scheduled to be held in Yogyakarta, Indonesia from March 30 to April 1.

Japan's Navy Unveils De-Facto Aircraft Carrier

Japan's Maritime Self Defense Force (JMSDF) took delivery of its biggest warship Izumo, since World War II, a vessel that observers say is a "de-facto aircraft carrier".

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Navigation Offshore Oil Pod Propulsion Salvage Ship Electronics Ship Repair Ship Simulators
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1607 sec (6 req/sec)