
1) Aeroplane 2) Airplane 3) Boat type 4) Lose contact with the road 5) Plane 6) Racing motorboat 7) Seaplane 8) Skid on wet roads 9) Skim on a wet road 10) Speedy motorboat 11) Swampland skimmer
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https://www.crosswordclues.com/clue/hydroplane

1) Floatplane 2) Seaplane 3) Skid 4) Skim
Found on
https://www.crosswordclues.com/clue/hydroplane

- an airplane that can land on or take off from water
- a speedboat that is equipped with hydrofoils that lift it so that it skims the water at high speeds
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[boat] A hydroplane (or hydro, or thunderboat) is a fast motorboat, where the hull shape is such that at speed, the weight of the boat is supported by planing forces, rather than simple buoyancy. A key aspect of hydroplanes is that they use the water they are on for lift rather than buoyancy, as well as for propulsion and steering: when tra...
Found on
http://en.wikipedia.org/wiki/Hydroplane_(boat)

• (n.) A plane, or any of a number of planes, projecting from the hull of a submarine boat, which by being elevated or depressed cause the boat, when going ahead, to sink or rise, after the manner of an aeroplane. • (n.) A projecting plane or fin on a gliding boat to lift the moving boat on top of the water; also, a gliding boat. • (...
Found on
http://thinkexist.com/dictionary/meaning/hydroplane/

(from the article `Gold Cup`) ...The first race for the cup was held on the Hudson River and was won by C.C. Riotte`s Standard with the fastest heat of 23.6 miles (38 km) per ... ...was first won in 1903 by Englishman S.F. Edge`s `Napier I,` a displacement (through-the-water) craft, with a speed of 19.53 miles per hour. Since ...
Found on
http://www.britannica.com/eb/a-z/h/89

A boat that at speed rises out of the water so that just its' screw is under water.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Hy'dro·plane noun [ Prefix
hydro- , 1 +
plane .]
1. A plane, or any of a number of planes, projecting from the hull of a submarine boat, which by being elevated or depressed cause the boat, when going ahead, to sink or rise, after the manner of an aëroplane.
2. A projec...
Found on
http://www.encyclo.co.uk/webster/H/77

[
v] - glide on the water in a hydroplane
Found on
http://www.webdictionary.co.uk/definition.php?query=hydroplane

hydroplane 1. A small, light boat designed to operate at high speed on the surface of the water. 2. A hydrofoil designed to provide lift for an aircraft while skimming the surface of the water.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1009/11

hydrofoil, hydroplane 1. A winglike structure attached to the hull of a boat that raises all or part of the hull out of the water when the boat is moving forward, thus reducing drag. 2. 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 hydrofoi...
Found on
http://www.wordinfo.info/words/index/info/view_unit/1009/6

A flat-bottomed craft designed to skim over the surface of the water.
Found on
https://www.encyclo.co.uk/local/20784
seaplane verb glide on the water in a hydroplane
Found on
https://www.encyclo.co.uk/local/20974

On a submarine, a movable horizontal fin angled downwards or upwards when the vessel is descending or ascending. It is also a highly manoeuvrable motorboat with its bottom rising in steps to the stern, or a hydrofoil boat that skims over the surface of the water when driven at high speed
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.