Major Oscar Theodor Gnosspelius (1878 – 1953)
Oscar Gnosspelius was an aeronautical engineer, the only person at Windermere to design and fly his own hydro-aeroplane.
Having attended the Blackpool Aviation Meeting in 1909, Gnosspelius began the task of designing an aeroplane which was capable of flying from water. His motive was that it would be more sensible to use freely available water than expensive land.
In July 1910, floats with a ‘step’ were constructed by Borwick & Sons for Gnosspelius from his designs and which he tested tested at Windermere – the first floats with a hydroplane step in the world, but his hydro-aeroplane, Gnosspelius No. 1, was not capable of taking off.
However, Gnosspelius did not protect his designs and it was Wakefield who obtained patents for stepped floats and their method of attachment, having applied on 11 December 1911. The application was opposed by The British and Colonial Aeroplane Company Limited. Wakefield wrote on the day of the hearing that the Comptroller had declared the sealing of a patent and awarded legal costs in his favour, and would deliver the full decision in a written judgment. The decision was that, having conducted considerable experiment successfully, Wakefield had combined features in a novel way.
Following instruction in February 1911 by Howard Pixton at the Avro Flying School at Brooklands, where he learned to fly straight and level, on 25 November 1911 Gnosspelius became the first person to take off from Windermere, in Gnosspelius No. 2. However, following a gust of wind, control was lost, and a wingtip dug into the water causing the aircraft to flip over onto its back. Nevertheless, he did succeed on 14 February 1912.
Gnosspelius joined the Royal Naval Air Service in 1914, ultimately being engaged by Short Brothers in 1922 to take charge of their experimental department. Despite departing Shorts in 1925, he took part on many test flights into the 1930s.