the.com/hydrofoil

a boat that gets bored of water and decides to fly above it

means A wing-like fin mounted beneath a boat that, at speed, lifts the hull clear of the water to reduce drag — or the fast vessel equipped with such fins.

from A 20th-century compound stitched from two Greek-rooted parts: 'hydro-', from Greek 'hydōr', water, and 'foil', which traces back through Old French 'fueille' to Latin 'folium', a leaf — the same 'foil' used in aviation's 'airfoil'. So the word literally means a 'water-leaf' or water-wing, a sibling to the aircraft wing it shamelessly imitates.

lift physics
underwater wings work like airplane wings, just denser
drag drop
rising hull cuts water resistance dramatically at speed
olympic sport
foiling sailboats now hit 50-plus knots routinely
old idea
first foiling boat flew over water in 1906
e-foil boom
electric surfboards let riders silently levitate over waves
for instance

america's cup ac75 — racing yacht with hydrofoils used since 2021 america's cup in auckland

boeing jetfoil — high-speed passenger ferry that operated in hong kong and japan from 1975-2010s

candela p-8 — swedish electric hydrofoil boat launched 2021, seats 8 passengers

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