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Extensible Markup Language  |  1995-08-14  |  2KB  |  34 lines
  1. <?xml version="1.0" encoding="utf-8" ?>
  2. <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" >
  3. <card>
  4.     <id>30477</id>
  5.     <filler1>0</filler1>
  6.     <cantDelete> <false /> </cantDelete>
  7.     <showPict> <true /> </showPict>
  8.     <dontSearch> <false /> </dontSearch>
  9.     <owner>5472</owner>
  10.     <link rel="stylesheet" type="text/css" href="stylesheet_3106.css" />
  11.     <content>
  12.         <layer>background</layer>
  13.         <id>25</id>
  14.         <text><span class="style10">ircraft (10 of 12)1. DevelopmentVertical flight</span><span class="style7">In 1907 the French Breguet-Richet </span><span class="style19">Gyroplane 1</span><span class="style7"> became the first helicopter to lift a man from the ground. It was not until the 1930s, however, that fully successful helicopters appeared. The most important of these were the French Breguet-Dorand </span><span class="style19">Gyroplane Laboratoire</span><span class="style7">, the German Focke-Wulf Fw 61, and the American Vought-Sikorsky VS-300. All three could fly well but had very limited lifting capacity. However, both the German and American types led to the development of better machines, which saw limited service during World War II. Wide scale military use of helicopters was first seen in the early 1950s, during the Korean War.</span></text>
  15.     </content>
  16.     <content>
  17.         <layer>background</layer>
  18.         <id>26</id>
  19.         <text><span class="style10">rototype de Havilland Comet</span><span class="style7">. The Comet introduced turbojet power to commercial aviation in 1952.</span></text>
  20.     </content>
  21.     <content>
  22.         <layer>background</layer>
  23.         <id>23</id>
  24.         <text>ΓÇó ENGINESΓÇó HOW AIRCRAFT WORK </text>
  25.     </content>
  26.     <content>
  27.         <layer>background</layer>
  28.         <id>36</id>
  29.         <text>308350</text>
  30.     </content>
  31.     <name>p348-10</name>
  32.     <script></script>
  33. </card>
  34.