Attachment (2) 175-WLM_801_19_1_-_C.pdf

This is a technical engineering drawing for a shell expansion structure, specifically a U.S. Coast Guard vessel design document. The drawing displays a detailed side-profile cross-section of a ship's hull with comprehensive structural specifications, dimensions, and construction details across multiple sections labeled columns 1-8 and rows A-H. The document identifies itself as a "Shell Expansion" drawing produced by Marinette Marine Corporation for Marinette, Wisconsin, with drawing number HI-340175, revision MLM-801-0190-C.

The drawing contains extensive technical specifications including hull block and shell module configurations, ordinary side frames, web frames, structural detail callouts, and frame line designations. General notes in the upper right provide fabrication and construction requirements, material specifications, welding standards, and quality control directives. The drawing references multiple related plan documents and includes a legend for various line types used in maritime construction. Frame spacing, plating thickness variations, stiffener locations, and structural transitions are precisely annotated throughout. The document serves as a master construction blueprint for shipyard personnel and contractors responsible for fabricating and assembling the vessel's hull structure, with all modifications and as-built updates tracked through revision control markings.