22885-D Tail Shaft ACOE Essayons.pdf

This technical drawing is a detailed schematic for a Tail Shaft for the ACOE Medium Dredge vessel Essayons, produced by Propulsion Systems, Inc. The engineering drawing (Document 22885-D) provides precise dimensional specifications for the tail shaft, including multiple cross-sectional views (Sections A-A, B-B, and C-C) and detailed mechanical notes. Key technical specifications include:

Material requirements specify ABS Grade 4 steel with specific physical and mechanical properties, including yield strength of 42,030 PSI and elongation requirements. The drawing includes precise measurements for shaft dimensions, liner materials (multiple stainless steel types), and critical notes about shaft taper, protective covers, and manufacturing tolerances. The document is part of the technical documentation for the U.S. Army Corps of Engineers' dredge vessel overhaul project, which is planned for August 2025 through February 2026, with a 60-day drydock period in December 2025.