
Technical Specifications
Overview
SS Bastø was a roll-on/roll-off (roro) ferry built by Moss Værft & Dokk in 1934. Originally built as a steamship with side-loading for vehicles, she was converted to diesel propulsion and received aft and bow car loading ramps in the early 1950. Ordered by Alpha of Moss, Norway, she was originally used on the Moss–Horten Ferry, and later on routes from Moss to Oslo as SS Alpha. The vessel was bought by Kristian Ravns Ferjerederi (later Nord-Ferjer) in 1952, where she was named MF Røtinn and used on the Røsvik–Bonnåsjøen route. She ended her career in Italy with Trapani-based Tragetti delle Isole, who initially named her Costa Gaia. After a sinking in 1971, she was repaired and renamed Vulcano. The ship was scrapped in 2012.
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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