what is a hydrofoil
6ab0ad633302094774df28e6cf5f2efe
- Define hydrofoil. hydrofoil synonyms, hydrofoil pronunciation, hydrofoil translation, English dictionary definition of hydrofoil. n. 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...
75e1a430ef34f874e4e6f9116b62c808
Parts of an Airplane The smooth surfaces are slightly curved from the front or leading edge, to the back or trailing edge. Air moving around the wing produces the upward lift for the airplane. The shape of the wings determines how fast and high the plane can fly. A cut through the wing from front to back is called an airfoil. The hinged control surfaces are used to steer and control the airplane. The flaps and ailerons are connected to the backside of the wings.
f057f3be416caa1a1db6aa90ccea7e3a
How do hydrofoil surfboards work? Answer Wiki. 1 Answer. , Waverider; water surf photographer; former surf contest supporter. A hydrofoil surfboard is like a hydrofoil boat where there is a wing-like structure underwater that, at speed, lifts the hull above water.
6420fff4fc101e5025356be4eaf962cd
trefoil Definition of trefoil. 1a : clover 1; broadly : any of several leguminous herbs (such as bird's-foot trefoil) with leaves that have or appear to have three leafletsb : a trifoliolate leaf.
18744c9cadba892157ce498700bc7171
hydrometer A hydrometer is an instrument used to measure the specific gravity (relative density) of liquids; that is, the ratio of the density of the liquid to the density of water.he point at which the surface of the liquid touches the stem of the hydrometer is noted. Hydrometers usually contain a scale inside the stem, so that the specific gravity can be read directly. A variety of scales exist, and are used depending on the context.
53e240549a26dcb03bd553c575d3ec1b
Aqueduct 1 Aqueduct (bridge) , a bridge that is constructed to convey water over an obstacle, such as a ravine or valley.2  Navigable aqueduct (or water bridge), a water-filled bridge enabling boats, barges or ships on a waterway to cross over an obstacle, such as a ravine or valley. Aqueduct (water supply) , an artificial (man-made) channel that is constructed to convey water from one location to another. 2  This can be made of canals, pipelines, inverted siphons, reservoirs and tunnels.
8c2c5d0e23596bb97b24310d670fec3e
- Hydropower, or hydroelectricity, is electricity generated by the force of moving water in the penstock [8] of a hydropower unit. Turbines are used to capture the kinetic energy of water by converting it to electricity as the falling water spins the turbine.uick Facts. 1  Hydropower is a renewable, efficient, and reliable source of energy that does not directly emit greenhouse gases or other air pollutants, and that can be scheduled to produce power as needed, depending on water availability.
0c3fffa9da9d2d1868eb8e8e9034b2af
- 4. hydro (n) A power plant that generates electricity using water. Small scale hydro power can provide a clean, safe energy source. 5. hydroacoustics (n) The branch of science that studies how sound travels in water.
4f05c0005671f5ba86954470b2be7863
- Turbine. 1  The turbine is the heart of the hydro system, where water power is converted into the rotational force that. drives the generator. It is arguably the most important component in the system, because its efficiency. determines how much electricity is generated.
cc7e670e4586b8a4222fc101ce4f5f85
Contrail Contrails (/ˈkɒntreɪlz/ ; short for condensation trails) or vapor trails are line-shaped clouds sometimes produced by aircraft engine exhaust, typically at aircraft cruise altitudes several miles above the Earth’s surface. Contrails are composed primarily of water, in the form of ice crystals.The combination of water vapor in aircraft engine exhaust and the low ambient temperatures that often exists at these high altitudes allows the formation of the trails.he vapor then condenses into tiny water droplets which freeze if the temperature is low enough. These millions of tiny water droplets and/or ice crystals form the contrails. The time taken for the vapor to cool enough to condense accounts for the contrail forming some way behind the aircraft's engines.
c0436e2c2e4031bf5d685dce5fcc853d
Hydrophone A hydrophone (Ancient Greek ὕδωρ = water and φωνή = sound) is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates electricity when subjected to a pressure change. Such piezoelectric materials, or transducers can convert a sound signal into an electrical signal since sound is a pressure wave. Some transducers can also serve as a projector, but not all have this capability, and may be destroyed if used in such a manner.
c205e1aecc87bb63fc0802cf73ee0b97
T ri-FlyerA High-Performance, Three-Place  Hovercraft You Build from Plans Grab the fully articulated, aircraft-style joystick, twist the throttle grip and blast off. Suddenly you're flying at more than 75 mph over land or water, soaring over 8-inch obstacles, even climbing 45-degree hills. You're riding Tri-Flyer, a high-tech, super-performing hovercraft that you can build from plans. It's built of wood station formers and stringers, which are covered with an 1/8-inch plywood skin; much like the construction of a wooden boat.
90b5a6647c449d4aca4647f99f5be972
Milfoil Milfoil is a common name for several plants and may refer to: 1  The flowering terrestrial plant Achillea millefolium (known commonly as yarrow). 2  The aquatic plants in the genus Myriophyllum (commonly referred to as water milfoil and other variations including the word milfoil).ilfoil is a common name for several plants and may refer to: 1  The flowering terrestrial plant Achillea millefolium (known commonly as yarrow). 2  The aquatic plants in the genus Myriophyllum (commonly referred to as water milfoil and other variations including the word milfoil).
2e8fe27fa6918cf11d2ca9a1d0f817e9
Hydropower Hydropower or water power (from the Greek: ύδρω, water) is power derived from the energy of falling water or fast running water, which may be harnessed for useful purposes. trompe, which produces compressed air from falling water, is sometimes used to power other machinery at a distance. In the late 19th century, hydropower became a source for generating electricity.
fed908a334fda7c50252458f35236abe
Theory of Flight There is no predetermined shape for a wing airfoil, it is designed based on the function of the aircraft it will be used for. To aid the design process, engineers use the lift coefficient to measure the amount of lift obtained from a particular airfoil shape. Lift is proportional to dynamic pressure and wing area.
545b1c566b5ef600a2fe94414a1d10fb
- Airfoils and Wings. The primary lifting surface of an aircraft is its wing. The wing has a finite length called its. wing span. If the wing is sliced with a plane parallel to the x-z plane of the aircraft, the. intersection of the wing surfaces with that plane is called an airfoil. This airfoil shape can be. different if the slice is taken at different locations on the wing.
12f75bea063efaf04cd2814f54230b5d
Hydropower Hydropower or water power is power derived from the energy of falling water or fast running water, which may be harnessed for useful purposes. Since ancient times, hydropower from many kinds of watermills has been used as a renewable energy source for irrigation and the operation of various mechanical devices, such as gristmills, sawmills, textile mills, trip hammers, dock cranes, domestic lifts, and ore mills. A trompe, which produces compressed air from falling water, is sometimes used to powe
7bcb52adffb33df5720b1d0cd8055b25
Diving plane Diving planes, also known as hydroplanes, are control surfaces found on submarines which allow the vessel to pitch its bow and stern up or down to assist in the process of submerging or surfacing the boat, as well as controlling depth when submerged.iving planes are usually fitted in two pairs, the bow planes at the front of the submarine and the stern planes at the rear.
2b75e400ccef2cbf8cee5fee26a0f2b2
- A waterspout is an intense columnar vortex (usually appearing as a funnel-shaped cloud) that occurs over a body of water and is connected to a cumuliform cloud.In other words, a tornado on water.es it is a tornado over the water. However it is easier for a tornado to form over water and is generally smaller and weaker. Waterspouts are generally not officially count … ed as tornadoes unless they hit land.
9f05b82c9b45b647c6a45e4e8b78d3bd
Hydrofoil The US Navy's XCH-4, with hydrofoils clearly lifting the hull out of the water. A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds.
4f4bf65cf4e21c57c68775f584a89f00
BASIC SEAMANSHIP A sail is a surface intended to generate thrust by being placed in a wind; basically it is a vertically oriented wing. Depending on the incident angle of the wind on the surface of the sail, one side of the sail will have a higher air pressure than the other one according to Bernoulli's principle.
a72b94e2a700c2a4e2e91c208f7ac384
Micro-hydro systems Pelton wheels are the type of turbine most commonly used for small scale domestic generation. Small scale hydro systems don't usually need water storage. A portion of the stream or river is temporarily diverted through a pipe system to the micro-hydro turbine and generator.elton wheels are the type of turbine most commonly used for small scale domestic generation. Small scale hydro systems don't usually need water storage. A portion of the stream or river is temporarily diverted through a pipe system to the micro-hydro turbine and generator.
917a9e413082706342d1550c8ea60366
- 10 hilariously insightful foreign words. A hydrostatic mower is a lawnmower that operates on a system of hydraulics rather than using belts and gears to run the machine. It is powered by a hydrostatic transmission, which is made up of a hydraulic pump and a hydraulic motor.
51fb2673d1a8cc986125184f171bf0c4
Aqueduct The upper tier encloses an aqueduct which carried water to Nimes in Roman times; its lower tier was expanded in the 1740s to carry a wide road across the river. An aqueduct is a man-made channel that carries water from one place to another. Usually, they are used to supply water to cities and towns.They may also carry water for irrigation, or for hydroelectricity. Pipes, canals, tunnels, and bridges that serve this purpose are all called aqueducts.he upper tier encloses an aqueduct which carried water to Nimes in Roman times; its lower tier was expanded in the 1740s to carry a wide road across the river. An aqueduct is a man-made channel that carries water from one place to another. Usually, they are used to supply water to cities and towns.
4fedd9902e0b3f1dfbc5a0dfcf5ddafc
Airfoil An airfoil (in American English) or aerofoil (in British English) is the shape of a wing, blade (of a propeller, rotor, or turbine), or sail (as seen in cross-section). An airfoil-shaped body moved through a fluid produces an aerodynamic force. The component of this force perpendicular to the direction of motion is called lift. The component parallel to the direction of motion is called drag.
078e927f60e278900df888a41b7a4721
- Hydrofoil advantages. 1  Higher top speed. 2  Improved sea keeping in rough seas. 3  Reduced fuel consumption. 4  Increased range due to lower fuel consumption. 5  Wave dampening. 6  Dry ride. 7  Improved load.