A sketch of a Hawk glider, perhaps his 'reconstructed' version dating to around 1898.
Around 1898
Percy Pilcher: Drawings (1895-1899)
Influenced by the pioneering glider designs of Otto Lilienthal (1848-1896), Percy Sinclair Pilcher (1866-1899) developed his own series of glider designs in Glasgow from 1893. In 1896 Pilcher's "Gull" and "Hawk" gliders were produced, and Pilcher learnt the art of controlling his machine in the air…