Attachment 12 - Topper_buoy drawing.pdf

This is a technical drawing and schematic document for an ALSA working buoy system. The drawing, designated 6213-001 and marked as preliminary, provides detailed specifications and assembly instructions for a marine buoy structure used in water environments.

The document illustrates multiple views and cross-sections of the buoy system, including plan views, section A-A elevation details, and component-level drawings. Key features specified include galvanized steel pipe construction (5" SCH 80 and 6" SCH 40 pipes), a cap ring assembly with lifting eyes, a zinc attachment plate for corrosion protection, and a water line indicator with blue reflective tape marking. The buoy includes vent holes and center holes for structural functionality, with dimensions ranging from 3'-3" in height to approximately 10'-0" total water line height. The design incorporates top and bottom plates, with detailed specifications for pipe connections and welding requirements. A legend on the right side of the drawing indicates various line types and view designations (VIEW A, VIEW ML, VIEXT TC, VIEXT MC) to support interpretation of the technical specifications. The document also contains a standard revision block and title block typical of engineering blueprints used for manufacturing or construction purposes.