12/31/2023. Remarks by Johan Visschedijk: "Sopwith developed a two-seat pusher biplane that first appeared in 1913, it had two engines driving a single pusher propeller. Powered by a single 100 hp Anzani engine, six similar seaplanes were ordered by Greece towards the end of 1913. With dual controls these were trainers for the Greek Naval Air Service, which was in the process of being set up on the basis of advice from Rear Admiral Mark Kerr, the head of the British Naval Mission to Greece.

The first aircraft appeared on the Solent on the coast of Hampshire in February 1914, after modifications on the tailplane, the Sopwith Pusher Seaplane (sometimes also referred to as Sopwith Greek Seaplane) past testing on March 25. All aircraft were tested by July, the first aircraft had been delivered to Greece at the end of May, all remaining aircraft had been delivered by the outbreak of WW I on July 28, 1914."