Various improvements in the hull treatment system of DDG 1000 will save costs from procurement to decommissioning.
A Navy Metalworking Center project team evaluated various improvements to the SSHT system in order to reduce the costs for procurement, installation, repair, and decommissioning of hull treatment on DDG 1000 by $3.5M per hull.
Delivery requirements for DDG 1000 necessitate the application of a Surface Ship Hull Treatment (SSHT) system to portions of the underwater hull. While hull treatment has been applied to other vessels, this is a first time it has been a requirement for a surface ship. The DDG 1000 Program Office (PMS 500) has an obligation to reduce the cost of the application of SSHT as much as possible.
The project assessed alternative anti-corrosive paints and adhesives, efficient manufacturing methods of system components, removal of lead from the system, materials/processes to improve installation, and identification/verification of a means to improve the system’s durability. In total, 11 materials/processes were evaluated in an effort to reduce the cost of SSHT, with 10 materials/processes being technically successful and recommended for implementation.
$3.5M per hull cost savings includes:
The recommended improvements are currently being incorporated into DDG 1000 hull treatment design via developing/modifying specifications. An at-sea test patch is also being planned. If the test patch is successful, the recommendations will be implemented on DDG 1000 and follow-on ships.