"1848-05-23" . "1.88" . . . . . . "Lilienthal" . . . . . . . "gliders" . . . . "Lilienthal Sturmflugel glider" . . . . . . "Lilienthal, Otto" . . . "1848" . . "Otto Lilienthal's" . "1896" . . . "Otto Lilienthal" . . "controlled hangglider flights (Lilienthal)" . . "1896-08-10" . . . . "German glider experiments" . . . . . . . "Otto Lilienthal Barracks" . "Lilienthal Klein doppeldecker glider" . . . . . . . "Lilienthal Klein ornithopter" . . "Lilienthal brothers" . "Lilienthal gliders" . "Otto Lilienthal#Jumping-off places" . . . . . . . . . . . . . . . . "Karl Wilhelm Otto Lilienthal" . . . . . "Lilienthal Gross doppeldecker glider" . . "Lilienthal Gross ornithopter" . . . "Lilienthal Sudende glider" . . . . "Otto Lilienthal" . . . . . . . . . . "Lilienthal Vorflugelapparat glider" . . . . . . . "Lilienthal Maihohe Rhinow glider" .