Glenn Luther Martin
Glenn Luther Martin (January 17, 1886 – December 5, 1955) was an early American aviation pioneer. He designed and built his own aircraft and was an active pilot, as well as an aviation record-holder. He founded an aircraft company in 1912 which through several mergers amalgamated into what is today known as Lockheed Martin. Early years Glenn L. Martin was born in Macksburg, Iowa, on January 17, 1886, to Minta and Clarence Martin. At the age of two, Martin's family moved to Salina, Kansas, so that his father could run a wheat farm. By age six, he became interested in kites, but at first his friends made fun of box-kites he built. When the kites flew well, people paid him twenty-five cents to build one for them. He turned his mother's kitchen into a "factory" to produce more kites. Martin also began using sails on everything from ice skates to wagons, and even his bicycle to move faster with less effort. He attended and studied business at Kansas Wesleyan in Salina, Kansas. ...
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Biplane
A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a biplane wing structure has a structural advantage over a monoplane, it produces more drag than a monoplane wing. Improved structural techniques, better materials and higher speeds made the biplane configuration obsolete for most purposes by the late 1930s. Biplanes offer several advantages over conventional cantilever monoplane designs: they permit lighter wing structures, low wing loading and smaller span for a given wing area. However, interference between the airflow over each wing increases drag substantially, and biplanes generally need extensive bracing, which causes additional drag. Biplanes are distinguished from tandem wing arrangements, where the wings are placed forward and aft, instead of above and below. The term is also ...
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