 The Navy is improving the "Independence"-class with bridge wings for safety and replacing the Rigid Hull Inflatable Boat (RHIB) with a boat.An improved cathodic protection system will enhance corrosion protection.Like the "Freedom"-class, the "Independence" vessels will be getting axial flow water jets which pushes water parallel to the shaft of the impeller to improve efficiency and reduce maintenance; they will also be upgraded to handle the horsepower provided by the gas turbine propulsion system.