Grigorovich M-16 Grigorovich M-16 was a successful Russian World War I-era biplane flying boat of the Farman type, developed from the M-9 by Grigorovich. Somewhat larger than the M-9, the M-16 was a version especially intended for winter operations, with better aerodynamic qualities. The double-float seaplane was designed by DP Grigorovich in 1916 with the aim of being used in winter conditions with the ability to land on water, ice and snow. Between 36 and 40 copies were built and used with some success by the Baltic Sea Fleet .…