
Technical Specifications
Overview
MSA (Minesweeper Auxiliary) Brolga (1102) was a minesweeper operated by the Royal Australian Navy (RAN) between 1988 and 2003. Launched in 1975 by Australian Shipbuilding Industries, the ship was designed for the Department of Transport as the lighthouse tender Lumen. Originally operating as a supply vessel for lighthouses around northern Queensland and the Torres Strait, the transition in lighthouse lights from acetylene gas to solar power meant there was less demand for the vessel, and by 1988, the Department of Transport was looking to sell the ship. Around this time, the RAN was looking to acquire vessels under the Craft of Opportunity Program, to serve as auxiliary minesweepers and technology testbeds.
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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