Kocherigin Designations

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The Aircraft Designations of Sergei Aleksandrovich Kocherigin

SA Kocherigin (sometimes transliterated as 'Sergey Kochyerigin' and often misspelled as Kochergin) was a prolific designer - first for the Central Design Bureau (TsKB) in Moscow, then for his own Design Bureau, OKB z-da 1 (at Moscow/Khodynka).

According to Alexandre Savine, Kocherigin and "his team produced up to 20 projects, one- and two-engined, fighters, attackers and light bombers" between 1938 and 1942 when the design bureau was disbanded. http://www.ctrl-c.liu.se/misc/ram/kocherigin.html

Here is a listing of some Kocherigin designs beginning with TsKB concepts. Some of the direct attributions to Kocherigin are dodgy - the LSh(-1) and TSh-2 are attributed in whole or part to Dmitry Pavlovich Grigorovich., the ShoN to TsKB and/or DP Grigorovich, the LR to Z.I. Itskovich, and the DI-5/DI-6 to Vladmir Yatsenko.

In the 1938-1942 period, I can only find 13 designs including sub-types - Sh-1, Sh-2, MMSh, BMSh M-90, BMSh M-88, OBSh M-81, OBSh M-82, OPB M-89, OPB M-90, OPB AM-37, IT M-90 (or IT-2 M-90), IT AM-37 (or IT-2 AM-37), and DIS.

In other words, there's plenty more undiscovered Kocherigin projects out there folks ;)

__________________________________________________

SA Kocherigin Aircraft Designations

LSh - [Project] 19?? attack biplane (not finished)
- LSh: aka TsKB No.5,* poss. misassigned desig.
-- * NB: Same TsKB no. as 1930 Grigorovich LSh-1

TSh-2 - 19?? armoured attack biplane*
- TSh-2 : 1st version, aka TsKB No.6**
- TSh-2 : 2nd version, aka TsKB No.21***
-- * NB: TSh-2 desig. assoc. with Grigorovich
-- ** Same TsKB no. as 1930 Grigorovich TSh-1
-- *** Same TsKB no. as 1931 Grigorovich TSh-2

ShON - 1931 2-seat biplane shipboard attack a/c*
-- * ShoN also attrib. to TsKB and Grigorovich
- ShON: 1 x 680 hp BMW VI V-12, span 13 m, x 1**
-- ShON aka TsKB No.23, deriv. of land-based Tsh-2
-- ** Intended for carrier use, engine overheated
-- http://www.airwar.ru/enc/bww1/shon.html
-- http://www.airwar.ru/image/idop/bww1/shon/shon-3.jpg

LR/TsKB-1 - 1933-34 light 2-seat recce biplane
- LR : Dural fuselage, wooden wings, span 13.00 m
-- aka TsKB-1, LR-1, LR M-34 (after 750 hp M-34)
-- http://www.airwar.ru/image/idop/other1/lr/lr-1.jpg
- LR M-34N: 1934 2nd prototype, 1 x 835 hp M-34N
-- LR M-34N proposed as light attack/recce a/c*
-- * LR M-34N, lost out to Polikarpov R-Z
-- LR-2: with Z.I. Itskovich, prob. same as LR M-34N
-- http://jn.passieux.free.fr/html/Sigles_avions_mil_anciens_ru.php

DI-5 - [Project] 1933 (??) 2-seat biplane fighter
- DI-5: 1 x 600 hp M-32, Yakovlev liquid-cooled V-16
-- DI-5 attrib. to Vladimir Yatsenko, aka TsKB-2

TSh-3 - 1934 2-seat heavy attack monoplane, x 1
- TSh-3: 1 x 750 hp M-34F, wing span 16.50 m
-- Braced low-wing monoplane, fixed main u/c
-- aka TsKB-24, designed with M.I. Gurevich
-- 10 fixed 7.62mm ShKAS, 1 flex., 250 kg bombs
-- TSh-3 rejected, poor view forward & downwards
-- http://www.secretprojects.co.uk/forum/index.php/topic,18254.msg174378.html

TsKB-11/DI-6 - 1934 2-seat fighter prototype
- TsKB-11: As planned, 1 x 600 hp Yakovlev M-32 V-12*
-- * Only 4 x M-32 built, engine design was a failure
- TsKB-11: As built, 1 x Wright R-1820-F3 Cyclone radial
- TsKB-11: 1935 2-seat biplane fighter, retr. uc, 1 x radial
-- aka Kochergin-Yatsenko TsKB-11
-- http://moderndrawings.jexiste.be/WW2Drawings/Files/2-Airplanes/Allies/2-USSR/01-Fighters/Di-6sh/TsKB-11.htm
- DI-6M-25 : 1936 trial a/c, 730 hp M-25 radial, x 3
- DI-6M-25B: 1937 trial a/c, 775 hp M-25B radial, x 1
- DI-6bis : 1938 trial a/c, 1 x M-62, aka 'Samolet 21'
-- DI-6bis 'Samolet 21' had fixed main u/c, aka DI-62
-- NB: Planned 2nd DI-6bis prototype wasn't completed
-- http://www.airwar.ru/image/idop/fww1/di6/di6-2.jpg
-- http://moderndrawings.jexiste.be/WW2Drawings/Files/2-Airplanes/Allies/2-USSR/01-Fighters/Di-6sh/Di-6-bis.htm
- DI-6I : 1936 2-seat biplane fighter, retr. uc, x 60
-- http://www.aviapress.com/book/oth/oth109_4.jpg
-- 3v: http://www.airwar.ru/image/idop/fww1/di6/di6-1.gif
-- http://moderndrawings.jexiste.be/WW2Drawings/Files/2-Airplanes/Allies/2-USSR/01-Fighters/Di-6sh/Di-6I.htm
- DI-6Sh: 1939 attack fighter/divebomber trainer, x 64
-- DI-6Sh aka TsKB-11Sh, TsKB-38, (??) aka DI-6III
-- http://www.aviapress.com/book/oth/oth109_2.jpg
-- http://www.airwar.ru/image/idop/fww1/di6/di6-5.jpg
-- http://moderndrawings.jexiste.be/WW2Drawings/Files/2-Airplanes/Allies/2-USSR/01-Fighters/Di-6sh/Di-6sh.htm
- D-6RTz : (??) mentioned in context of LSh-2 attack a/c
- DI-6MMSh: DI-6Sh mod. fitted with M-300 X engine? **
-- ** Sole source is Wikipedia, can anyone confirm?
-- ** MMSh = Malaya Modificatsiya Shturmovika***
-- *** 'Minor Modification to Attack aircraft'
- TsKB-41 – [Project] single-seat derivative of DI-6
-- http://www.secretprojects.co.uk/forum/index.php/topic,25087.0.html

DI-7 - 2-seat fighter* attributed to Kocherigin, no other details
-- * Inferred from designation alone
-- http://jn.passieux.free.fr/html/Sigles_avions_mil_anciens_ru.php

SR - 1935 single-engined high-speed recce/light bomber, x 3
- SR: Mid-wing monoplane, mixed const.* 1 x GR 14Krs
-- SR = Skorostnoi Razvedchik (Fast Recconnaissance)
-- * Wooden monocoque fuselage, 12.00 m metal wings
-- aka ShKB-27, 1st prototype with retrac. main u/c
-- http://www.ctrl-c.liu.se/misc/ram/sr-1.jpg
- R-9 : 1936 2nd prototype, 1 x M-85 (Soviet GR 14K)
-- R-9 fitted with fairing, fixed main u/c legs
-- R-9 prod. planned but proved unstable, led to Sh-1

BSh-1 - 1937 2-seat attack monoplane
- BSh-1: Vultee V-11G adapted for Soviet prod'n
-- M-62IR repl. SR-1820-G2, ShKaS repl. Brownings
- PS-43: Civil Aeroflot version of BSh-1 'Vulti'

Sh/LBSh series - 1938-1939 2-seat attack aircraft
- Sh/LBSh: R-9/SR-based monoplane, fixed main u/c
-- Sh = Shturmovik-1 (Armoured attack a/c-1)
-- LBSh = Legkii Bronirovannyi Shturmovik (Light Armoured Attacker)
- Sh-1 : LBSh, 1 x 1,100 hp Tumansky M-88* 14-cyl
-- * aka Sh-1 M-88, MV-3 turret, mixed constr'n
-- http://militera.lib.ru/tw/perov_rastrenin/102.jpg
- Sh-2 : 1 x 950 hp Tumansky M-87A 14-cyl radial
- MMSh: Sh-2 modified, summer 1940, M-81 radial
-- MMSh = Malaya Modificatsiya Shturmovika**
-- ** 'Minor Modification to Attack aircraft'
- BB-21: Service desig. for production MMSh***
-- *** Zavod 292 reassigned to build Yak fighters
- BMSh: [Project] 1939 impr. Sh-1 w/ retr. u/c
-- Sh dural wings to be repl. w/ wooden struct.
-- BMSh = Bol'shaya Modificatsiya Shturmovika****
-- **** 'Major Modification to Attack aircraft'
- BMSh M-90: Planned prototype (May-June 1940)*
- BMSh M-88 TK: Engine backup plan for BMSh M-90
-- * BMSh project approved but no prototype built

OBSh - [Project] 1939 armoured attack a/c, 1 x M-81 radial*
-- * 1,200 hp Shvetsov M-81 18-cyl, 2 x TK-2 turbochargers
- OBSh: A generic designation for armoured attack projects
-- OBSh = Odnomestnyi Bronirovannyi Shturmovik**
-- ** 'Single-Seat Armoured Attacker'
- OBSh M-81: aka OBSh M-81 TK (after engine & turbocharger)
-- M-81 engine development ended, OBSh M-81 work abandoned
- OBSh M-82: [Project] 1 x Shvetsov M-82IR 14-cyl radial
-- 500 kg bombs, 2 x 7.62mm ShKaS, 2 x 23mm VYa-23 cannons
-- OBSh M-82 development eclipsed by revised OPB concept
-- http://militera.lib.ru/tw/perov_rastrenin/s25.gif
-- 3v: http://militera.lib.ru/tw/perov_rastrenin/s24.gif
-- http://www.secretprojects.co.uk/forum/index.php/topic,21459.msg212006.html#msg212006

OPB - 1941 single-seat, single-engine divebomber, span 10.40 m
- OPB : OBSh project devel. with M-85A (GR 14K) 14-cyl radial
-- OPB = Odnomestnyi Pikiruyushchyi Bombardirovshchik*
-- * Single-Seat Dive Bomber
- OPB : As planned, 1 x 1,750 hp Shvetsov M-90 14-cyl**
-- 3v: http://militera.lib.ru/tw/perov_rastrenin/s26.gif
-- ** Potential alt. engine, 2,200 hp Shvetsov M-81 18-cyl
- OPB M-89: [Project] 1,350 hp Tumansky M-89 14-cyl radial
- OPB M-90: [Project] 1,750 hp Tumansky M-90 18-cyl radial
- OPB AM-37: [Project] 1,600 hp Mikulin AM-37 V-12
-- 2 x ShKAS, 2 x BS 12.7mm mgs, 2 x underwing 20-23mm cannons
-- OPB aka OPB-5
-- 3v: http://militera.lib.ru/tw/perov_rastrenin/s27.gif

IT - [Project] 1940 twin-engined* multi-purpose a/c**
- IT : 4-seat mid-wing monoplane, twin tails
-- * IT 2M-90 : 2 x 1,750 hp Shvetsov M-90 14-cyl radials
-- * IT 2AM-37: 2 x 1,600 hp Mikulin AM-37 V-12 (chin rad)
-- ** Heavy fighter, tank-buster, torpedo bomber
-- IT = Istrebitel' Tyazhelyi or Heavy Fighter***
-- *** aka IT-2 for Istrebitel Tankov 2 (Tank Fighter 2)
-- Arm. 2 x 37mm 11P or 45mm 111P, 4 x ShVAK, 3 x ShKAS
-- http://www.secretprojects.co.uk/forum/index.php/topic,12185.msg119654.html

DIS - [Project] 1941 3-seat twin-engined* heavy fighter
- DIS: Mid-wing monoplane, twin tails, flush canopy
-- Dalnij Istrebitel' Soprovozhdenya/Long-range Escort Fighter
-- * 2 x 1,400 hp Mikulin AM-37 V-12s (annular radiators)
-- Armament: 2 x 23 mm MP-6,** 4 x UBK, 2 x ShKAS
-- ** MP-6 by OBK-16, lead by Y.G. Taubin and M. Baburin
-- http://www.secretprojects.co.uk/forum/index.php/topic,12185.msg119654.html
 

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