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The pinewood derby is a racing event for Cub Scouts in the Boy Scouts of America. Cub Scouts, with the help of parents, build their own cars from wood, usually from kits containing a block of pine, plastic wheels and metal axles. With the popularity of the pinewood derby, other organizations have developed similar events, and a small industry has developed to provide tracks, timers, scales, trophies, ribbons and other products. Similar Cub Scouting events include the raingutter regatta with boats and the space derby using rubber band powered rockets. ==Origins== The first pinewood derby was held on May 15, 1953 at the Harmer House in Manhattan Beach, California by Cub Scout Pack 280C (the present Pack 713〔http://www.pack713.org〕). The concept was created by the Pack's Cubmaster Don Murphy, and sponsored by the Management Club at North American Aviation. Murphy's son was too young to participate in the popular Soap Box Derby races, so he came up with the idea of racing miniature wood cars. The cars had the same gravity-powered concept as the full-size Soap Box Derby cars, but were much smaller and easier to build. The pinewood derby had a sensational first year. The originator of the idea—Don Murphy and the Management Club of North American Aviation—sent out thousands of brochures to anyone who requested more information. The idea spread rapidly, and competitions were held across the country, mainly with recreation departments and nonprofit organizations including the Los Angeles County Department of Recreation. Of all that early enthusiasm, however, only the Boy Scouts of America made it part of an official program.〔(【引用サイトリンク】title= The History of Pinewood Derby Car Racing )〕 The National Director of Cub Scouting Service, O. W. (Bud) Bennett, wrote Murphy: "We believe you have an excellent idea, and we are most anxious to make your material available to the Cub Scouts of America." Within the year, the Boy Scouts of America adopted the pinewood derby for use in all Cub Scout packs. In its October 1954 issue, Boys' Life publicized the event and offered plans for the track and a car, which featured "four wheels, four nails, and three blocks of wood." Don Murphy continued to run the derby program through the Management Club until his retirement from North American Aviation in 1978. He died in 2008. In 2003, Pack 713 celebrated the 50th Pinewood Derby along with Packs 287, 759, 275, and former Cub Scouts from the 1953 Pack 280c. A shoulder patch for the Western Los Angeles County Council that depicted a pinewood derby car and a message of honor to Don Murphy was released to celebrate the 50th anniversary of the event. In 1980, the design of the block was changed from a cutout block, consistent with a 1940s style front-engined Indy 500 car, to a solid block. The tires were also changed from narrow, hard plastic, to wider "slicks."〔http://www.maximum-velocity.com/pinewood_derby_times_v7_i13.htm〕 In May 2005, the Boy Scouts of America registered Pinewood Derby as an official trademark.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「pinewood derby」の詳細全文を読む スポンサード リンク
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