Navy Stern Flap Installations for Fuel Savings

Friday, May 01, 2009

The U.S. Navy began installing stern flaps in April on amphibious ships in an effort make ships more fuel efficient and save up to $450,000 in fuel costs per ship annually.

USS Whidbey Island (LSD 41), the first dock landing ship to receive stern flaps, began the installation process mid-April during a scheduled maintenance availability in Norfolk, Va. The ship is expected to head back to sea in late November.

"A stern flap, located on the aft end of a ship, makes the ship more hydrodynamic, reducing drag and the energy required to propel them through the water," said Petter Kristiansen, Fleet Readiness Research and Development Program (FRR&DP) program manager. "Previous installations on other Navy ships generated annual fuel savings of $365,000 to $450,000 per ship."

The first stern flap installation on an LSD represents a major milestone for Naval Sea Systems Command (NAVSEA) FRR&DP. Once installed fleetwide on both LSDs and LHDs, the initiative is expected to yield an annual cost avoidance of approximately $6.3m, based on fuel oil costing $96 per barrel.

"This is an excellent example of the Navy incorporating a proven, commercially available fuel-saving technology into our ships," said Kristiansen. "FRR&DP examines new technologies that offer reduced fuel consumption and significant return on investment but must be tested and validated before fleetwide implementation.

"In these days of lean budgets and volatile fuel prices, we have to identify programs capable of delivering maximum return on investment. Stern flaps deliver immediate and long-term fuel savings."

USS Kearsarge (LHD 3) is scheduled to receive the first LHD stern flap installation this summer, Kristiansen added. The ship is in a major maintenance overhaul at Norfolk Naval Shipyard (NNSY).

Stern flaps for LSDs, LHDs and other Navy ships were designed and model-tested by Naval Surface Warfare Center Carderock Division (NSWCCD), a NAVSEA field activity.

Other energy-saving FRR&DP initiatives include underwater hull anti-fouling coatings, solid-state lighting and replacing obsolete boiler control system components on LHDs and general-purpose assault ships (LHAs) with new components that allow automated adjustment of boiler inputs for maximum efficiency.

FRR&DP is one of five programs managed or administered by the NAVSEA Fleet Readiness Engineering Office (FREO), located at NAVSEA Headquarters, Washington Navy Yard.

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

Navy

Ten Migrants Die in Mediterranean, a Thousand Rescued

At least 10 North African migrants died when their rubber boat overturned in the southern Mediterranean while almost a thousand more from a total of seven vessels

Sunken Japanese WWII Battleship Found

Seventy years after the conclusion of World War II, philanthropist and entrepreneur Paul G. Allen has located the Musashi, one of the two largest and most technologically

US, Australian, Indonesian Navies Commemorate Battle of Sunda Strait

Senior officials from the United States, Australia and Indonesia paid their respects to the crews of USS Houston (CA 30) and HMAS Perth (D 29) during a wreath laying ceremony March 1,

Environmental

Harbor Police Rescues Stranded Sea Lion

Sea lions are a common sight in San Diego Bay, but a sea lion wandering a busy roadway and then ending up in the back of a patrol car is slightly rarer.   The

VesselVanguard Partners with Hatteras Yachts

VesselVanguard announced today a new partnership with Hatteras Yachts to provide a five-year subscription for its award-winning maintenance management solution

Rescue 21 Achieves 'SOLAS' Declaration from DHS

The U.S. Coast Guard is declaring 'Sea Area A1' service in certain areas off the coast of the United States based on the performance of the General Dynamics-built Rescue 21 system.

 
 
Maritime Careers / Shipboard Positions Maritime Security Pipelines Pod Propulsion Port Authority Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
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: 0.1998 sec (5 req/sec)