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A paper plane, paper airplane, paper glider, or paper dart is a toy plane made out of paper. It is also sometimes called aerogami, after origami (the Japanese art of paper folding). In Japanese, it is called kamihikōki. It is popular because it is one of the easiest types of origami for a novice to master. The most basic paper plane would only take five steps to complete. The term "paper plane" can also be referred to those made from cardboard.

Da Vinci is often cited as the inventor of paper planes, although this is debatable since the Chinese invented both paper and the kite. However, he did make reference to building a model plane out of parchment. Arguably the father of model fliers was George Cayley.

The earliest known date of the creation of modern paper planes was said to have been in 1909. However, the most accepted version of the creation was two decades later in 1930 by Jack Northrop (co-founder of Lockheed Corporation). Northrop had used paper planes as tests of ideas for flying real-life aircraft.

There have been many improvements in the designs for velocity, lift, style and fashion over subsequent years.

Contents[hide]
  • 1 Advanced paper gliders
    • 1.1 Developments
    • 1.2 Technological introductions
    • 1.3 Material considerations
    • 1.4 Directions in advanced paper aircraft design
    • 1.5 Rubber-band powered paper models 1936-1947
    • 1.6 White Wings
    • 1.7 Paper Pilot
    • 1.8 Paper helicopters (autogyros)
  • 2 World records
  • 3 Aerodynamics
    • 3.1 General aerodynamics
      • 3.1.1 Critical Re
      • 3.1.2 Aerofoils
      • 3.1.3 Origami Flying Wings
  • 4 Space flight
  • 5 See also
  • 6 References
  • 7 Notable books
  • 8 External links
Advanced paper glidersDevelopmentsPaper gliders have experienced three forms of advanced development in the period 1930-1988:
  • High performance
  • Scale modeling
  • Fewer extra folds
Technological introductionsTechnology responsible for the advancement of paper aeroplane construction:
  • Inexpensive CAD software for 2D part design
  • Widespread manufacture, and inexpensive nature of acetal air-annealed glues, e.g. Bostick Clear-bond.
  • Inexpensive Ink-jet, and Laser-jet computer printers, for accurate aircraft part reproduction
  • The advent of the internet, and widespread information sharing
Material considerationsPaper's density is higher than lighter materials such as balsa wood, and so in consequence a conventional origami paper glider (see above) has considerably lower performance due to higher drag and imperfect aerodynamic section of its wings. Conventional balsa gliders will always outperform conventional paper aircraft for this reason.

However, unlike balsa gliders, paper gliders have a far higher strength/thickness ratio - a sheet of office-quality 80 g/sq m photocopier/laser printer paper, for example, has approximate in-scale strength of aircraft-grade aluminum sheet metal. Card stock has the approximate properties of steel at the scale of paper model aircraft.

Directions in advanced paper aircraft designAccomplished engineers, and enthusiasts have found that using paper as a construction material allows, with care, for the replication of performance characteristics which can exceed those of conventional hand-launched free flight gliders, if use of engineering principles and aeronautics are included during the process of design. As a result, two distinct design sets (Ninomiya, 1969 and Mathews, 1982 : see below) have emerged, both possessing remarkable performance a full two orders of magnitude removed from conventional gliders.

As far as scale modelling goes, paper aircraft modelling has aided full scale as well as modellers. The first conceptions of scale model or semi-scale gliders appeared in the "Great International Paper Airplane Book", 1967.

Design of paper models is an attractive pursuit, as design of wings and other surfaces can be completely in-scale by tracing flight surfaces with precision. Further, CAD software can be used in plotting the shapes of wings, tailplanes and other components for easy reproduction of parts for assembly. With care, it is even possible to colour in a model airframe before construction commences, or print patterns upon it during the process of reproduction.

During the Second World War a peak was reached with flying card models, where rubber-powered fighters were produced. This peak has been reached many times since then for scale model paper aircraft. Care in construction can produce flying models which are superior in strength and lightness to balsa and foam models, so that micro radio-control and electric power may be employed in these airframes. Larger scale construction with corrugate cardboard, re-inforced with other materials is another option to radio-control models to be built, for modelers desiring inexpensive 'disposable'

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13y ago

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