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

Navy

ThyssenKrupp: Submarine Unit Not For Sale

German industrial group ThyssenKrupp is not in talks to sell its submarine unit nor is it in talks to sell its stainless steel unit VDM, its chief executive said on Friday.

SECNAV Completes Visit to Paraguay

Secretary of the Navy (SECNAV) Ray Mabus completed a visit to Paraguay Jan. 29 during which he met with Republic of Paraguay President Horacio Cartes to discuss

US Wants Japan to Patrol South China Sea

Admiral Robert Thomas, senior U.S. Navy officer and commander of the Seventh Fleet and the top U.S. navy officer in Asia, has told Reuters that the United States

Environmental

BOEM Issues Supplemental Environmental Impact Statement

The U.S. Department of the Interior, Bureau of Ocean Energy Management (BOEM), announces the availability of the Draft Supplemental Environmental Impact Statement

European Shipping Week Announces Speakers

Adam Goldstein, President and COO of Royal Caribbean Cruises, Pierfrancesco Vago, Chairman of CLIA Europe and Executive Chairman of MSC Cruises, and Paolo Tonon,

Europe's Offshore Wind Capacity Growing

New capacity edges down 5 pct from record 2013; industry body forecasts stable growth over 2015/6. Europe's offshore wind capacity kept up a steady rate of growth

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Naval Architecture Pipelines Salvage Ship Electronics Ship Repair Shipbuilding / Vessel Construction Sonar
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: 0.1507 sec (7 req/sec)