The New Book of KnowledgeGrolier Incorporated, 2002 - Počet stran: 21 An illustrated encyclopedia with articles on history, literature, art and music, geography, mathematics, science, sports, and other topics. Some articles include activities, games, or experiments. |
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Strana 105
... Flying models are classified according to the way they are controlled in flight . The three categories of flying models are free flight , con- trol line , and radio control . Free Flight The very early model airplanes were all free ...
... Flying models are classified according to the way they are controlled in flight . The three categories of flying models are free flight , con- trol line , and radio control . Free Flight The very early model airplanes were all free ...
Strana 565
... flying in the late 1980's . Flying Boats . Another important passenger aircraft used in the 1930's was the flying boat . It was particularly useful for traveling long distances over oceans . It could land at many of the world's major ...
... flying in the late 1980's . Flying Boats . Another important passenger aircraft used in the 1930's was the flying boat . It was particularly useful for traveling long distances over oceans . It could land at many of the world's major ...
Strana 569
... flying tests for dif- ferent levels of skill . A pilot is not allowed to fly for purposes beyond the level of the license earned . The airlines test their pilots further and periodically check their skills and send them to classes to ...
... flying tests for dif- ferent levels of skill . A pilot is not allowed to fly for purposes beyond the level of the license earned . The airlines test their pilots further and periodically check their skills and send them to classes to ...
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