" Mr Ballantyne explains that Floating Harbour Transhipper (FHT) provides a completely covered operation that .. comes with its own particular feeder vessels that are tailored to fit snugly inside the well dock. This gives it a big, broad operating window that can cope with a whopping 4.5 metre sea and up to 30 knot winds with 50 knot gusts; “the kind of environment you often find around latitudes closer to the poles”.
https://www.portstrategy.com/news101/port-operations/cargo-handling/floating-a-good-idea
https://www.portstrategy.com/news101/port-operations/cargo-handling/floating-a-good-idea