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 November 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Navy

Damen Outfitting First of Nine Bahamas Patrol Boats

The first of nine Damen Stan Patrol 3007s ordered by the Royal Bahamas Defense Force has arrived at Damen Shipyards Gorinchem in the Netherlands for outfitting.

US Navy: Tortuga Allision Costs CO, XO Their Jobs

USS Tortuga's (LSD 46) Commanding Officer, Cmdr. Thomas Goudreau and Executive Officer, Cmdr. John Fleming, were relieved of their duties Dec. 16, due to loss of

Japan Gains Edge in Australia Submarine Deal

Australia and Japan appear to be inching closer to an agreement on the sale the top-secret technology from Japan to build a fleet of new generation submarines.

Environmental

NZ Report: Human Error to Blame for Rena Grounding

New Zealand's Transport Accident Investigation Commission (TAIC) published its final report into the grounding of containership Rena in October 2011. The TAIC’s

Costa Rica Approves APM Terminals Project

Port operator APM Terminals, a unit of Denmark's A.P. Moller-Maersk, said on Friday Costa Rica's environment agency had approved the construction of its Moin Container Terminal project.

NOAA: US to See More Floods from Sea Level Rise

Most of U.S. coast may see 30 or more days a year of floods up to 2 feet above high tides. By 2050, a majority of U.S. coastal areas are likely to be threatened

 
 
Maritime Security Maritime Standards Navigation Pod Propulsion Salvage Ship Electronics Ship Repair 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: 0.1365 sec (7 req/sec)