<https://educationforum.ipbhost.com/topic/19-aviation/page/2/#comment-2611>
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"Anne Jakins is adapting our material for the less able. So far there is work on Otto Lilienthal, Percy Pilcher and the Wright Brothers. \nhttp://www.spartacus.schoolnet.co.uk/Aviation.htm "
<https://educationforum.ipbhost.com/topic/19-aviation/page/2/?tab=comments#comment-695>