Attachment (2) 87-WPB_111_1_1_-_H.pdf

This is a technical specification and engineering drawing document for a 67-foot Coastal Patrol Boat (CPB) shell expansion, prepared by Bollinger Shipyards, Inc. for the U.S. Coast Guard, Office of Naval Engineering. The document consists of detailed construction specifications and multiple cross-sectional engineering drawings that define the structural requirements, welding specifications, material standards, and dimensional tolerances for the vessel shell expansion project.

The specifications establish comprehensive requirements including all dimensions to be in millimeters unless noted otherwise; plate thickness and material specifications using ASTM standards; detailed welding procedures with specific requirements for joint preparation, filler metals, and inspection protocols; and structural integrity standards for the hull construction. Key technical details include provisions for eliminating excess sealant and caulking, specifications for welding plate butt seams with minimum 75mm leg fillets, welding plate corners with specific measurement tolerances, and interference specifications between plating butts and seams with weld traces. The document references multiple drawing sheets and revision numbers, with drawing number 67/803-111-001 dated 11/08 and revision H indicated on the cover sheet. Material and construction standards comply with Navy specifications, and the document includes references to related drawings and technical standards necessary for fabrication and quality assurance of the hull expansion work.