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Actually most RoRo carriers, once they start to burn sink with the fire being unextinguishable. Oil, Gas & Tires burn well enough. No batteries needed.

• walrus01 5y ago
  based on recent mishaps for "pure car carrier" RoRos they seem to have catastrophic failures based on being top-heavy or ballast problems, I can recall at least 3 within the past 20 years that have toppled over on their sides in catastrophic events that are non fire related.
  • gerdesj 5y ago
    Or leaving the doors open: https://www.bbc.co.uk/news/uk-england-suffolk-25446228 https://www.bbc.co.uk/news/uk-england-suffolk-25446228 . I've deliberately linked a page to the memorial. Plenty of links to the cause.
    • lmm 5y ago
      If you're trying to be respectful by deliberately linking to a memorial, it's rather undermined by linking to one for a completely different disaster from what you're describing. The European Gateway collided with another ship. Doors being left open was the Herald of Free Enterprise.
      • walrus01 5y ago
        while I wouldn't say that it's a totally "solved" problem, some of the terrible mishaps of bow doors on roro ships that occurred in the past 30-40 years seem to have led to much more stringent operational and engineering standards for door locking and latching systems.