hydrofoiln.
/ˈhʌɪdrəfɔɪl/, U.S. /ˈhaɪdroʊˌfɔɪl/, /ˈhaɪdrəˌfɔɪl/ 1. A plane designed to give rise to a force (other than drag) when moving through a liquid; spec. (a) a plane (usually one of two or more) attached to a vessel by means of which the hull is lifted clear of the water at speed; (b) one attached to a seaplane to facilitate take-off by increasing the hydrodynamic lift; (c) one attached at the side of a ship to act as a stabilizer.
ΘΚΠ
society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > [noun] > hydrofoil on seaplane
hydrofoil1920
hydro-ski1952
the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > lift or drag > surface
plane1809
hydrofoil1920
hydrovane1920
society > travel > travel by water > vessel, ship, or boat > equipment of vessel > other equipment of vessel > [noun] > device to increase stability > other stabilizing devices
automatic stabilizer1909
hydrofoil1920
gyro-stabilizer1921
1920 Chambers's Jrnl. 28 Feb. 207/2 [A boat.] Under each wing at its forward end is a series of narrow steel planes known as hydrofoils.
1933 Aeroplane 24 May 945/1 The possibility of using hydrofoils to cure porpoising and to revolutionise the design of flying-boats.
1939 Jrnl. Royal Aeronaut. Soc. 43 552 A special landing and take-off gear in the form of hydrofoils which will be retracted in flight.
1958 New Scientist 27 Feb. 15/3 The aerofoils of the sails and the hydrofoil of the keel are separated by the hull of the yacht.
1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) XIII. 212/1 Diving planes [on a submarine] are pairs of hydrofoils which extend from the sides of the ship.
1968 J. E. Plapp Engin. Fluid Mech. xii. 486 The hydrofoil..is a wing designed to operate in water instead of air.
1972 Daily Tel. 28 Sept. 6/5 The mono hull has surface-piercing hydrofoils which lift the craft out of the water.
1973 Nature 12 Jan. 114/2 The use of hydrofoils for a wide variety of purposes such as propeller blades on boats, as sailboat keels, ship rudders, submarine and torpedo fins, lifting surfaces of hydrofoil boats, and shroud ring stabilizers for missiles, has prompted efforts to increase the lift-to-drag ratio.
2. A vessel fitted with hydrofoils for raising it clear of the water.
ΘΚΠ
society > travel > travel by water > vessel, ship, or boat > mechanically propelled vessels > [noun] > hydroplane, hydrofoil, or hydroglider
hydroplane1904
gliding-boat1906
skimmer1909
hydroglider1921
hydrofoil1959
thunderboat1967
Jetfoil1972
1959 Times Rev. Industry Nov. 41/1 This speed..will be valuable for work on high speed motor boats or hydrofoils.
1962 Daily Tel. 12 Feb. 16/8 The United States Maritime Administration..believes there is a big future for hydrofoils as passenger vessels.
1968 New Scientist 17 Oct. 138/2 One civil application would be to inject additive round the hull of a hydrofoil while it was accelerating to become foil-borne.
1969 N.Z. Listener 12 Dec. 19/1 Jaunting up Auckland Harbour on the hydrofoil.
1970 R. C. Dorf Mod. Control Syst. x. 351 The Denison is an 80-ton hydrofoil capable of operating in seas ranging to 9 ft in amplitude at a speed of 60 knots.
1972 Guardian 27 May 5/3 The Thames's first modern commuter service—by Italian hydrofoil—opened yesterday.
3. attributive, as hydrofoil boat, hydrofoil craft, hydrofoil service, hydrofoil ship.
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1950 Electronic Engin. 22 205 A hydrofoil boat—one which has wings extending into the water to support it in motion so that the hull is out of the water—has speed and stability advantages.
1960 Times 19 Jan. 10/7 The United States Government has awarded a contract for the construction of a hydrofoil ship capable of carrying 100 passengers at speeds up to 90 miles an hour.
1960 New Scientist 15 Sept. 703/2 The hydrofoil craft is particularly suited for river work.
1964 Weekly News (Auckland) 8 July 30 The beginning of the hydrofoil service to Waiheke Island..means that island residents..can now make the trip between Auckland and Matiatia in 20 minutes.
1973 Cook's Continental Timetable June 456 Hydrofoil Services. Journey 35 minutes [from Naples] to Capri.
This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2022).
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