The Fokker W.1 was a two-seat experimental biplaneflying boat that first flew in 1913. Built by Anthony Fokker it was an unsuccessful design and development ceased after it crashed during flight testing.
Bibliography
Herris, Jack (2020). Fokker Aircraft of WWI: Volume 1: Spinne–M.10 & Watercraft: A Centennial Perspective on Great War Airplanes. Great War Aviation Centennial Series. Vol. 51. n.p.: Aeronaut Books. ISBN978-1-953201-05-8.
Leaman, Paul (2001). Fokker Aircraft of World War One. Marlborough, UK: Crowood Press. ISBN1-86126-353-8.