354-B620-01 Rev A.pdf

This document is a technical drawing set for a bow thruster fairing installation on a vessel's bow structure. The drawings are prepared by Archibald Sturm & Associates LLC for ABS (American Bureau of Shipping) approval, with reference to ABS Ottawa Letter WO0398301 dated October 20, 2025.

The drawing package consists of 12 sheets containing detailed technical specifications for the removal and reinstallation of existing bow structure components related to bow thruster fairing modifications. The sheets include comprehensive frame details (Frames 5 through 10), longitudinal bulkhead (LBHD) configurations at 9'-2 13/16" on centerline for both port and starboard sides, and bulkhead (BH) specifications at 7'-9" and 10'-3" above the baseline (ABL). Each frame and bulkhead view includes multiple detailed sections showing cut lines, remove and scrap portions, material specifications, and precise dimensional measurements in feet and inches. The document incorporates a bow thruster tunnel table providing measurements for tunnel lengths from centerline port and starboard at 24 clock face positions, with dimensions ranging from approximately 31 to 85 inches. The drawings include abbreviated references to structural components such as longitudinal bulkheads (LBHD), flanged plates (FLG PL), flat bars (FB), port and starboard designations (PS, SB), and other marine structural elements. All drawings are marked "FILED BY ABS FOR REFERENCE ONLY" and require Adobe reader to view all ABS amendments.