AFP - A super-fast, space-age powerboat which scythes through waves and smashed the round-the-world record is set to be unleashed on Japanese whalers next month, activists said on Friday.

The tri-hulled, kevlar-and-carbon vessel, which can manage speeds up to 50 knots (57 miles/93 kilometres per hour), will chase the controversial boats during their annual hunt in seas south of Australia.