Smithsonian Channel | This Devastating Patrol Boat Suffers From a Soft Underbelly 🚤 Combat Ships | Smithsonian Channel @SmithsonianChannel | Uploaded 1 year ago | Updated 2 hours ago
While Patrol Boat Riverines, or PBRs, were ground-breaking in the way their jacuzzi-like, propulsion system allowed them to speed through shallow water, they had a fatal flaw: their fiberglass frame gave crew almost zero protection.

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