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

Navy

Today in U.S. Naval History: September 16

Today in U.S. Naval History - September 16 1854 - Cdr. David G. Farragut takes possession of Mare Island, the first U.S. Navy Yard on the Pacific. 1917 -

Austal Delivers Fourth JHSV to the US Navy

The U.S. Navy accepted delivery of USNS Fall River (JHSV 4) from Austal USA yesterday, a week shy of six months from the date they took delivery of JHSV 3. This

Washington Navy Yard Remembers Shooting One Year Later

It was a day no one who worked on the Washington Navy Yard will ever forget. Shortly after 8 a.m., on Sept. 16, 2013, Navy contractor Aaron Alexis entered the Naval

Environmental

Maritime Academy Awarded DHS Grant for Arctic Training

Maine Maritime Academy receives $450,000 grant From U.S. Department of Homeland Security for ice navigation and maritime first responder courses for the Arctic Maine

Great Lakes Dry Cargo Residue Discharge Rule in Effect

The U.S. Coast Guard published a final rule to the Federal Register announcing that it has received approval from the Office of Management and Budget for an information

Survey Vessel Delivered to Fugro N.V.

Fugro Pioneer is the second of three vessels to be delivered to Fugro in 2014. Fugro has taken delivery of the second of the three Fugro Offshore Coastal Survey

 
 
Maritime Security Maritime Standards Naval Architecture Offshore Oil Pipelines Pod Propulsion Port Authority Ship Electronics Ship Repair Shipbuilding / Vessel Construction
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: 0.1357 sec (7 req/sec)