Hydrofoil

(noun.) a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds; 'the museum houses a replica of the jet hydroplane that broke the record'.

(noun.) a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through; 'the fins of a fish act as hydrofoils'.

迪尔德丽手打