
Technical Specifications
Overview
NOAAS Davidson (S 331) was a survey ship in commission in the National Oceanic and Atmospheric Administration (NOAA) from 1970 to 1989. Prior to her NOAA service, she was in commission in the United States Coast and Geodetic Survey from 1967 to 1970 as USC&GS Davidson (CSS 31), the second Coast and Geodetic Survey ship of the name. She was the only sister ship of NOAAS McArthur (S 330).
Composite Risk
Multiple adverse factors, or a hard ship-specific signal, lift this hull above the fleet norm.
A coverage-weighted blend of the single component we could read for this hull; the weights renormalise over only the components present, so a thin read is never inflated and a hull is never credited a “safe 0” for a signal it has no row for. This headline is flagged low-confidence (a thin or structural-only read) and should not be treated as a verdict. Higher means riskier. Derived in-house from government-open port-State-control, flag, sanctions and our own vessel data; weight it by the coverage above.
Commercial
Price it in the Route Planner between any two commercial ports: ballast and laden legs, two fuels at live bunker prices, port and canal costs, the weather on the way, and the TCE set against the market.

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