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

Navy

Least Known Navy Activity? Underwater Shipwreck Archeology

Robert S. Neyland, Ph.D., director of the Underwater Archeology Branch (UAB) of the Naval History and Heritage Command (NHHC) in Washington, D.C., manages the people who protect more than 17,

Fire Aboard US Warship Transiting Atlantic Ocean

U.S. Fleet Forces Command inform that a fire broke out aboard 'USS Hue City' (CG 66) as the ship was transiting the Atlantic.
 Hue City had departed Mayport, Fla.

USCG Cutter Leaked Sewage at Hawaii Base

The U.S. Coast Guard (USCG) said it is investigating a sewage discharge from one of its vessels, the Coast Guard Cutter Morgenthau, at Coast Guard Base Sand Island, Tuesday.

Environmental

Update: Spill Response Continues in Miami

U.S. Coast Guard crewmembers are responding to a fuel spill in the vicinity of Government Cut in Miami Wednesday, following a leak discovered aboard the 95-foot tug Neptune Tuesday night.

Collision, Grounding and Anchor Draggings in Chesapeake Bay

The U.S. Coast Guard is working with local response agencies and the Virginia and Maryland Pilots Tuesday after receiving a report of a collision between two ships

USCG: Deepwater Horizon Response is Far from Complete

The U.S. Coast Guard federal on-scene coordinator (FOSC) for the Deepwater Horizon Response completed the transition to the “Middle Response” (“Middle

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Navigation Pipelines Salvage Ship Electronics Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | 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: 0.1769 sec (6 req/sec)