hydrovanen.
/ˈhʌɪdrəveɪn/ a. = hydroplane n. 1.
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society > travel > travel by water > vessel, ship, or boat > equipment of vessel > other equipment of vessel > [noun] > device to increase stability > in a submerged submarine
hydroplane1901
hydrovane1919
1919 Times 22 Mar. 8/1 The submarine commander..could do a ‘crash dive’, that is, go under with full weight on, hydrovanes set hard down, and taking in water ballast.
1940 ‘N. Shute’ Landfall ii. 49 British submarines carried identification marks upon the hydrovanes.
b. = hydrofoil n. 1.
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the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > lift or drag > surface
plane1809
hydrofoil1920
hydrovane1920
1920 Glasgow Herald 27 Apr. 7 The possibilities of the large flying boat are very great... Hydrovanes may be found..to give good results for reducing landing shocks and increasing the ‘getting off’ efficiency.
1936 Jrnl. Royal Aeronaut. Soc. 40 476 A combination of ship and hydrovane can only reduce the overall resistance to propulsion.
1939 Jrnl. Royal Aeronaut. Soc. 43 402 It is proposed to provide flying boats with hydrovanes.
1967 New Scientist 9 Mar. 460/3 The special type of hydrofoil anchor designed by Kingston..has hydro-vanes rigged in such a way as to be self-reversing in tidal currents.
This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2018).
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n.1919