Two 60-Ton Portal Crane Special Purpose Service (SPS) Conversions JA-25-06
Summary
AI-generated · Feb 12, 2026Modify two 60/15-ton portal cranes at Norfolk Naval Shipyard to support pier-side Special Purpose Service (SPS) operations. The work for both cranes includes adding a broken shaft detection system (BSDS) to the main and whip hoists and replacing the boom hoist wire rope. The BSDS consists of a caliper disc brake mounted on the wire rope drum, structural modifications to accommodate the brake, and the associated brake control systems for the main and whip hoists of both cranes.
Modify two 60/15 ton portal cranes at Norfolk Naval Shipyard (NNSY) for support of pier side special purpose service (SPS) operations. The modification for both cranes will include the addition of a broken shaft detection system (BSDS) for the main and whip hoists and the replacement of the boom hoist wire rope. The BSDS consists of a caliper disc brake mounted on the wire rope drum, modifications as needed to the crane structure to accommodate the brake, and the associated caliper disc brake control system(s) for the main and whip hoists of both cranes.
From Justification posted on Feb 11, 2026Notice history
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