which prevent it from leaving the track. November – Lawrence Hargrave demonstrates stable flight with a tethered box kite. 4 December – German meteorologist and Aerologist Arthur Berson ascends to in a balloon, setting a new world altitude record for human flight. 1895 Percy Pilcher makes his first successful flight in a glider named the Bat. Pablo Suarez flies his Suarez Glider in Argentina, following correspondence with Lilienthal. By the mid-1890s, the Imperial Russian Navy has established "aerostatic parks" on the coasts of the Baltic Sea and Black Sea. 1896 6 May – Samuel Pierpont Langley flies the unmanned Aerodrome No. 5 from a houseboat on the Potomac River a distance of , the first truly successful flight of one of his powered models. June – Octave Chanute organises a flyer camp at Lake Michigan during which both a copy of one of Lilienthal's designs and a biplane built by Chanute are tested. 9 August – Otto Lilienthal crashes after a stall caused by a gust, breaking his back. He dies the following day. October – Ground testing of an all-aluminium airship designed by the Austro-Hungarian engineer David Schwarz and built by Carl Berg, begins in Berlin. Schwarz will die of a heart attack before seeing it fly. November – Samuel Pierpont Langley flies the unmanned Aerodrome No. 6 a distance of . Germans August von Parseval and Hans Bartsch von Sigsfeld invent the kite balloon for observations in strong winds. William Paul Butusov, a Russian immigrant to U.S, with the Chanute group, construct the Albatross Soaring Machine which achieves an unmanned unpowered uncontrolled hop from a ramp. William Frost, Welsh, flies the Frost Airship Glider 500 meters, possibly with balloon assist. 1897 11 June – Salomon Andrée, Nils Strindberg, and Knut Frænkel attempt an expedition to the North Pole by free balloon from Spitsbergen. They crash within three days but manage to survive for several months in the pack ice. Their remains are discovered in 1930 on White Island. It was possible to develop the preserved film material. 12 June – Friedrich Hermann Wölfert and his mechanic are killed when their petrol-powered airship catches fire during a demonstration at the Tempelhof field. 14 October – Clément Ader later asserts that on this date he made a flight in his steam-powered uncontrolled Avion III also referred to as Aquilon or the Éole III. His claim is disputed. The French Army