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A paper plane, paper aeroplane (UK), paper airplane (US), paper glider, paper dart or dart is a toy aircraft (usually a glider) made out of paper or paperboard; the practice of constructing paper planes is sometimes referred to as aerogami (Japanese: kamihikÅki), after origami, the Japanese art of paper folding. [28]
Paper airplanes are fun and simple for all ages. Paper airplanes can be made in five easy steps. Start by folding a piece of paper in half vertically.
Examples of soaring flight by birds are the use of: Thermals and convergences by raptors such as vultures; Ridge lift by gulls near cliffs; Wave lift by migrating birds [33] Dynamic effects near the surface of the sea by albatrosses; For humans, soaring is the basis for three air sports: gliding, hang gliding and paragliding.
A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding (also called soaring). [1] [2] This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude. Sailplanes are aerodynamically streamlined and so can fly a significant distance forward for a small ...
Person flying a Walkalong glider by controllable-slope soaring. Controllable-slope soaring (also known as Walkalong gliding) is a type of slope soaring where a slope is made to follow a walkalong glider (a lightweight toy aircraft), both sustaining and controlling the glider's trajectory by modifying the wind in the vicinity of the airplane.
A simple folded paper plane Folding instructions for a traditional paper dart. A paper plane (also known as a paper airplane or paper dart in American English, or paper aeroplane in British English) is a toy aircraft, usually a glider, made out of a single folded sheet of paper or paperboard.
From World War I through the 1950s, static model airplanes were also built from light weight bamboo or balsa wood and covered with tissue paper in the same manner as with flying models. This was a time-consuming process that mirrored the actual construction of airplanes through the beginning of World War II. Many model makers would create ...
Hang glider launching from Mount Tamalpais. Unpowered aircraft can remain airborne for a significant period of time without onboard propulsion. They can be classified as gliders, lighter-than-air balloons and tethered kites.