Kochyerigin DI-6 (internal designation TsKB-11; Russian: Кочеригин ДИ-6/ЦКБ-11) was a two-seat fighter biplane produced in the Soviet Union in the 1930s.
The DI-6 was a conventional single-bay biplane of mixed construction with cable-retracted main landing gear. The pilot and the tail gunner sat in tandem cockpits, the pilot's open, and the gunner's partially enclosed. To maximize the gunner's arc of fire, the rear cockpit was set lower in the fuselage than the pilot's.
The DI-6 was developed at TsKB as a fighter that would also be capable of ground attack when fitted with different armament. Originally intended to use a liquid-cooled V-12 engine, problems with its development led to the choice of the Wright R-1820radial engine instead. The first flight took place on 30 September 1934, and testing began in earnest in early 1935, with State Acceptance Trials following between May and November. Despite a number of weaknesses discovered during testing, the type was ordered into production, and deliveries to the Soviet Air Force commenced in the spring of 1937. Problems including excessive vibration, and a poor field of fire for the gunner, were never adequately resolved, and the various fixes implemented to cure these and other problems eventually added around 160 kg (350 lb) to the aircraft's weight. Production continued until 1939.
Operational history
Pre-GlastnostWestern sources often reported these aircraft as having participated in the Battle of Khalkhin Gol against Japan in 1939, and even in the Winter War against Finland in 1939–1940, but more recent scholarship has failed to uncover any evidence that it was deployed in either case.[1]
Mellinger, George. "Soviet Air Order of Battle for the Khalkin Gol Incident". j-aircraft.com. Retrieved 2008-09-11.
January 29, 2023
kochyerigin, internal, designation, tskb, russian, Кочеригин, ДИ, ЦКБ, seat, fighter, biplane, produced, soviet, union, 1930s, tskb, 11irole, fighternational, origin, soviet, unionmanufacturer, factory, 39designer, sergei, aleksandrovich, kochyeriginfirst, fli. Kochyerigin DI 6 internal designation TsKB 11 Russian Kocherigin DI 6 CKB 11 was a two seat fighter biplane produced in the Soviet Union in the 1930s DI 6 TsKB 11Kochyerigin DI 6iRole FighterNational origin Soviet UnionManufacturer Factory No 39Designer Sergei Aleksandrovich KochyeriginFirst flight 30 September 1934Primary user Soviet Air ForceNumber built 222 Contents 1 Design and development 2 Operational history 3 Surviving examples 4 Variants 5 Operators 6 Specifications DI 6 7 ReferencesDesign and development EditThe DI 6 was a conventional single bay biplane of mixed construction with cable retracted main landing gear The pilot and the tail gunner sat in tandem cockpits the pilot s open and the gunner s partially enclosed To maximize the gunner s arc of fire the rear cockpit was set lower in the fuselage than the pilot s The DI 6 was developed at TsKB as a fighter that would also be capable of ground attack when fitted with different armament Originally intended to use a liquid cooled V 12 engine problems with its development led to the choice of the Wright R 1820 radial engine instead The first flight took place on 30 September 1934 and testing began in earnest in early 1935 with State Acceptance Trials following between May and November Despite a number of weaknesses discovered during testing the type was ordered into production and deliveries to the Soviet Air Force commenced in the spring of 1937 Problems including excessive vibration and a poor field of fire for the gunner were never adequately resolved and the various fixes implemented to cure these and other problems eventually added around 160 kg 350 lb to the aircraft s weight Production continued until 1939 Operational history EditPre Glastnost Western sources often reported these aircraft as having participated in the Battle of Khalkhin Gol against Japan in 1939 and even in the Winter War against Finland in 1939 1940 but more recent scholarship has failed to uncover any evidence that it was deployed in either case 1 Surviving examples EditA replica DI 6 is displayed in Victory Park at the Museum of the Great Patriotic War in Moscow Variants EditDI 6bis Trainer with fixed landing gear DI 6Sh TsKB 11Sh TsKB 38 Ground attack variant with armored pilot s seat and four forward firing PV 1 machine guns under the bottom wing 60 built DI 6MMSh One prototype with M 300 X engine did not enter production Operators Edit Soviet UnionSoviet Air ForceSpecifications DI 6 EditData from Shavrov 1985 2 General characteristicsCrew 2 Length 6 87 m 22 ft 6 in Wingspan 9 94 m 32 ft 7 in Height 3 2 m 10 ft 6 in Wing area 25 15 m2 270 7 sq ft Empty weight 1 360 kg 2 998 lb Gross weight 1 955 kg 4 310 lb Powerplant 1 Shvetsov M 25 9 cylinder air cooled radial piston engine 522 kW 700 hp Propellers 2 bladed variable pitch propellerPerformance Maximum speed 372 km h 231 mph 201 kn Range 500 km 310 mi 270 nmi Service ceiling 7 700 m 25 300 ft Time to altitude 5 000 m 16 404 ft in 10 minutes Wing loading 78 kg m2 16 lb sq ft Power mass 0 267 kW kg 0 162 hp lb Horizontal turn time 12 secondsArmament Guns 3 7 62 mm 0 3 in ShKAS machine guns two unsynchronized firing forward and one on a rear facing mount 750 rounds gun Bombs Up to 40 kg 88 lb of bombsReferences Edit Wikimedia Commons has media related to Kochyerigin DI 6 Mellinger Shavrov V B 1985 Istoriia konstruktskii samoletov v SSSR do 1938 g 3 izd in Russian Mashinostroenie ISBN 5 217 03112 3 Taylor Michael J H 1989 Jane s Encyclopedia of Aviation London Studio Editions p 561 Russian Aviation Museum Archived 2016 03 03 at the Wayback Machine Ugolok neba Mellinger George Soviet Air Order of Battle for the Khalkin Gol Incident j aircraft com Retrieved 2008 09 11 Retrieved from https en wikipedia org w index php title Kochyerigin DI 6 amp oldid 1125121061, wikipedia, wiki, book, books, library,
