TJ-568-004D Bow Thruster Installation.pdf
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- MO FY27 Thomas Jefferson Drydock REFERENCES and ATTACHMENTS Federal contract opportunity
- Solicitation number
- 1305M226Q0100REF
About this file
This document is a set of engineering drawings and specifications for bow thruster installation modifications on the NOAA Ship Thomas Jefferson. The drawings, prepared by Beckley Engineering Co., Inc., detail structural modifications to accommodate a bow thruster system at Frame 13, with related changes to Frames 12 and 14. The project drawing number is TJ-568-004, with revision D dated 0603-303-401.
The technical specifications include removal and addition of structural components across multiple frames, with particular focus on the Lower Cargo Hold (LKG) areas both aft and forward. Key modifications include: installation of vertical ladders; removal and replacement of girder bracing and deck stiffeners; modification of the centerline bulk head elevation; changes to plating, angles, and frame connections; installation of tunnel extensions with recess shells; and hinged grating details with specific clearance specifications (26 inches). The drawings incorporate multiple plan views, elevation views, and detail sections showing existing conditions, modifications, and new construction requirements, with material specifications for steel components and structural assembly details. The installation requires coordination with ABS (American Bureau of Shipping) surveyor approval and adherence to ABS rules for welding and construction.
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