__NOTOC__ The Grigorovich M-11 (or Shchetinin M-11) was a Russian single-seat fighter flying boat designed by

Dmitry Pavlovich Grigorovich Dmitry Pavlovich Grigorovich ( uk, Дмитро Павлович Григорович, russian: Дмитрий Павлович Григорович) (born in Kyiv, Russian Empire, now Ukraine, 25 January (6 February) 1883, died 26 July 1938 in Mosc ...

and built by

Shchetinin {{Unreferenced, date=December 2009 Shchetinin (Russian: Щетинин) was the first Russian aviation company. It was founded in St. Petersburg in 1910 under the name Pervoye Rossiyskoye Tovarishchestvo Vozdukhoplavaniya S. S. Shchetinin i Ko (Firs ...

Design and development

Originally conceived as a two-seater the prototype M-11 was built in 1916 at the Shchetinin factory in Petrograd. The M-11 was a biplane with a 100 hp (75 kW) Gnome Monosoupape rotary engine with a pusher propeller strut-mounted below the upper wing. The small number of two-seaters had a poor performance and were only used as trainers, Grigorovich developed a single-seat version powered a 110 hp (82 kW) Le Rhône engine and fitted with a forward firing machine gun in front of the cockpit. Originally 100 single-seat M-11s had been ordered but this was reduced to 60 as the aircraft had poor handling when landing or alighting on water. The M-11 were operated from snow and ice with twin skis fitted under the forward fuselage and a single ski under the tailplane. To improve the water handling an improved variant was developed as the M-12 which had a re-designed hull and reduced loaded weight. Although the climb to height was improved the forward speed was 5 mph (8 km/h) less than the M-11 consequentially only a few M-12s were built.

Variants

;M-11 (two-seat) :Small numbers built for training use. ;M-11 (single-seat) :Production variant, 60 built. ;M-12 :Improved version.

Operators

; *

Estonian Air Force The Estonian Air Force ( et, Õhuvägi, ) is the aviation branch of the Estonian Defence Forces. The air force traces its history to 1918, and was re-established in its current form in 1991. As of 2016, the Estonian Air Force has a strength of ...

; *

Imperial Russian Navy The Imperial Russian Navy () operated as the navy of the Russian Tsardom and later the Russian Empire from 1696 to 1917. Formally established in 1696, it lasted until dissolved in the wake of the February Revolution of 1917. It developed from ...

; *

Soviet Naval Aviation Soviet Naval Aviation (AV-MF, for ''Авиация военно-морского флота'' in Russian, or ''Aviatsiya voyenno-morskogo flota'', literally "aviation of the military maritime fleet") was the naval aviation arm of the Soviet Na ...

Specifications (M-11 single-seater)

References

Bibliography

* Gerdessen, Frederik. "Estonian Air Power 1918 – 1945". ''

Air Enthusiast ''Air Enthusiast'' was a British, bi-monthly, aviation magazine, published by the Key Publishing group. Initially begun in 1974 as ''Air Enthusiast Quarterly'', the magazine was conceived as a historical adjunct to ''Air International'' maga ...