✈ 20/08/2026
Grigorovich M11 (1916)
The Grigorovich M11 (and related M12) were seaplanes first initiated by the Baltic theater and the Grigorovich M9 frequent encounters against German seaplanes. The Naval Department contacted Grigorovich for a seaplane capable of escorting M-9s in their missions, so presumably as a single seat fighter. Work proceeded in 1916 with a first flight in September 1916 by Alexander Prokofiev-Seversky (yes, the same that emigrated in the US and founded Seversky Co.) which “wrote the book” on the model. The first M11 produced were 2-seater for training but the bulk of the 60 made before the serie was cancelled, were single seaters. An improvement called the M12 failed and overall, the Grigorovich M11 was used only a few months between November 1916 and the summer of 1917, doomed by its poor seaworthiness and limited speed and performances in general, sub-par for a seaplane fighter.