DG-52/IP-1 (Istrebitel Pushechnij) -
Low-wing monoplane fighter. The IP-1 prototype carried two 76mm (?)
recoilless guns, with five rounds each; two 7.62mm guns were fitted to
assist in aiming. But production aircraft carried a more conventional
armament of two 20mm cannon and six 7.62mm guns. 90 were built. 1936.
DG-53/IP-4 - Monoplane fighter, a smaller derivative of the IP-1,
armed with four recoilless 45mm cannon. One built.
DI-3 (Dalnii Istrebitel) - Two-seat escort fighter, a mixed-construction
biplane with twin tailfins. The DI-3 was fast, but handling characteristics
were not satisfactory because it was overweight. No production.
DG-58R - Project of close support
bomber/recconaisater, developed within contest 'Ivanov'. Aircraft was not
built because of sudden death of D.P. Grogorovich. 1937 (project).
I-1 - Single-seat biplane fighter. The I-1 was of wooden construction,
with a neatly cowled American engine. Handling and climb were unsatisfactory,
and the aircraft was redesigned, becoming the I-2. 1924.
I-2/I-2bis - Biplane fighter, developed from the Grigorovich I-1. The M-5
engine was a Soviet copy of the Liberty 12. The production of the even more
redesigned I-2bis was 211 aircraft. It was the first indigeneous fighter
to enter service in substantial numbers. 1926.
I-5 (Polikarpov-Grigorovich) -
Biplane fighter, designed by Polikarpov and Grigorovich while imprisoned.
Some were still in service as trainers in 1941. 803 built. 1933.
I-Z - Single-seat low-wing monoplane fighter,
prototype of the PI-1 and IP-1. The I-Z was designed to carry a single-shot
recoilless gun under each wing. The front fuselage was that of the
Polikarpov I-5 biplane fighter. After two prototypes, 71 production
aircraft followed; but because of handling problems, most were used in
development roles.
M-5 - Biplane flying boat. Around 300 built. 1915.
M-9 17.3K - Biplane flying boat. Around 500 built.
M-11 - Biplane flying boat fighter. The M-11 was a simple aircraft with
a psuher engine. There were two-seat and single-seat versions. The
two-seaters were used only as trainers, but the single-seaters were claimed
to be the fastest flying boat fighters in the world. The M-11 could also
be operated on skies, for frozen lakes. It was not entirely successful,
and only about 60 were built. 1917.
M-12 - Development of the M-11. The hull was redesigned to improve its
hydrodynamics, and the structure was made lighter. Performance was
substantially improved. Only a few were built, and were used in combat
during the civil war. 1917.
M-15 - Biplane flying boat with a pusher engine. 1916.
PI-1 (Pushechnij Istrebitel) - Monoplane fighter, developed from the I-Z.
The 75mm cannons were later was replaced by 20mm ShVAK cannons. 1934.
TB-5 (Tiagiolij Bombardirovschik) - Monoplane bomber. No production,
because the TB-3 was preferred. 1931.
TSh-1 - Armoured byplane created under Soviet program of heavy armoured
ground attack aircraft development. "Tsh" series were not so bad, but
suffered form weak engine and overweight passive armour. Prototype of the
TSh-2.
TSh-2 - Armoured (so TSh - Tiagiolij Shturmovik) groun-attack biplane.
"TSh" series were not as bad, but suffered form weak engine and overweight
passive armour. 410kW M-17 engine, 1931. Ten built.
TSh-3 (non-Grigorovich) - Just another attempt to make armoured
groun-attack plane (so TSh). As its predecessors TSh-1 and TSh-2,
it was overweight. Key of all those failures was that designers were
busy adding heavy armour to aircraft instead of building it using
armour as a construction material. It took almost 10 years before
Ilyushin Il-2 emerged as an operational heavy armoured aircraft
with exeptional performance.
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