Soviet heavy fighters (little-known OKB)

[borovik]

Heavy fighters by S.Kocherigin
Especially for Wurger
Several pre-war construction projects, heavy fighter by S.Kocherigin.
Performed before closing the OKB/bureau.
IT
Design by S.Kocherigin
purpose : tank-buster, torpedo-bomber, multi-purpose two engine fighter.
Year : 9.09.1940 mart, 1943
engine :2-M-90 of 1750hp. 2-AM-37 of 1400hp.
span : - m
lenght : - m
wing areal :34,785m2
performence:
max speed :690 km/h 620km/h
range . 1500km 1700km/h
ceiling. 10.000m 11.000m
armament :down -2x37 mm cannon "11P" or 2x45 mm "111P"
4x 20 mm ShVAK
+ 3x 7,62 ShKAS

weight : loaded- 6984kg 7000 kg
empty-5190 kg 5210 kg

crew : 4
____________________________________________
DIS 2-AM-37
Design by S.Kocherigin
purpose : two engine fighter.
Year : 20.02.1941
engine : 2-AM-37 of 1400hp.
span : 15,70m
lenght : 12,90m
wing areal : 37,98m2
performence:
max speed :620km/h
cruise :490km/h
range . 1550km
ceiling. 10.800m
armament :2x23 mm cannon by Taubin
4x 12.7 mm UBK
2x 7,62 U ShKAS

weight : loaded- 8525 kg
empty-6450 kg

crew : 3

Drawing -I.Sultanov
Sourche- mn's."Aviation and cosmonautic"

 

[hesham]

Re: Heavy fighters by S.Kocherigin

Thank you my dear Borovik,

they are completely new aircraft to me.

 

[Wurger]

Re: Heavy fighters by S.Kocherigin

Anatolyi,

great!!! I have no words for you! Excellent data on this impressive projects. I dare to recognize that I (almost) love soviet aircraft as much as german ones. But soviet ingenuity was greater! they did a great deal of research before WW2. Many thanks, Borovik.

 

[Wurger]

Re: Heavy fighters by S.Kocherigin

Anatolyi,

the DIS-2 project depicts an annular radiator, so I think, but with gills!!! Was it a TsIAM, OKB or Mikulin solution?

Thanks

 

[Pioneer]

Re: Heavy fighters by S.Kocherigin

Hey great find borovik!!

I can't say that I have heard of the Kocherigin OKB/bureau before, let alone the interesting IT 2 or DIS 2 designs either ;D

Thanks for sharing!!!

Regards
Pioneer

 

[borovik]

Re: Heavy fighters by S.Kocherigin

the DIS-2 project depicts an annular radiator, so I think, but with gills!!! Was it a TsIAM, OKB or Mikulin solution?

Liquid-cooled engine AM-37 had a circular oil cooler (in front of the engine nacelles) with frontal air intake. Water-cooler have been sliding, and placed in the center section of the wing. Their development belongs to DB Kochirigin’s.
Was created full-size mock one nacelle and cockpit crew.

 

[Avimimus]

Re: Heavy fighters by S.Kocherigin

The thing that I find most striking is the use of a glass nose to cut down drag (presumably at the cost of a relatively unprotected pilot).

 

[taildragger]

Re: Heavy fighters by S.Kocherigin

How does a glass nose reduce drag? If anything, I'd think that a multi-paneled greenhouse, such as the ones illustrated above, would increase drag due to the inevitable gaps and misalignments between the many pieces when compared to a few pieces of formed sheetmetal.

 

[airman]

Re: Heavy fighters by S.Kocherigin

really interesting : so Am-37 variant remind me the family of Junkers 88 (188/288/388) for the form of the canopy !

 

[Wurger]

Re: Heavy fighters by S.Kocherigin

Their development belongs to DB Kochirigin’s.
Was created full-size mock one nacelle and cockpit crew.

Hey Anatoliy,

any photos?
Cheers

 

[Avimimus]

Re: Heavy fighters by S.Kocherigin

Taildragger, my assumption is that the 'greenhouse' would keep a good field of vision, without having to add a 'razorback' canopy for the crew (which would otherwise be necessary given the small fuselage size).

 

[borovik]

Responding to a personal message to Wurger,
perhaps this topic is heavy fighters of little-known bureau,
will be interesting and different.
Gr-1 or IDS (dalniy istrebitel soprovojdeniya) = /long-range escort fighter/ by P.Grushin (OKB plants-135)
Year :1940 December
engine :2 x AM-37 (1400hp)
max speed :650 km/h
armament :2x20mm ShVAK
2 x 7,62 ShKAS + 2x7,62 mm (in corner wings)
2x37 mm cannon (bottom)
weights :loaded 7650kg
empty 5420kg
length: 11,6m
span: 16,8m
ar.wing:42m2
ceiling: 11,700m
crew – 1

 

[borovik]

Che-1 or PPI (pyaty pushechnyi istrebitel) = / five cannon fighter / by I.Chetverikov (OKB-256)
Year :1939
engine :2 x AM-107 (1400hp)
max speed :640 km/h
armament :
1X37 mm cannon by Taubin
2x20mm ShVAK
+ 2x20mm ShVAK (be on the defensive)
weights :loaded 5140kg
empty 4490kg
length: 15,02m
span: 17,0
ar.wing:25,8m2
ceiling: 11,000m
crew – 3
from m-n "Aviation & Cosmonautic" № 3 1999

 

[borovik]

DSI or SI (dvukhmotornyi, skorostnoy istrebitel) = /two-engine high-speed fighter/ by N.Yefremov (TsAGI)
Year :1939 august
engine :2 x AM-106 (or AM-37)
max speed :700 km/h
armament :
2x20mm ShVAK
2x12.7 mm UBK
+ 2x 7,62 ShKAS (be on the defensive)
weights :loaded 4920kg
length: 10,4m
span: 14,4m
ar.wing:28,2m2
ceiling: 11,200m
crew – 2
from m-n "Aviation & Cosmonautic" № 11- 1999

 

[borovik]

That is also for convenience, some internal links on this topic:
http://www.secretprojects.co.uk/forum/index.php/topic,10781.0.html OI-2 by Belyaev
http://crimso.msk.ru/Images6/AK/AK1999-03/26-1.jpg -3v.
http://www.secretprojects.co.uk/forum/index.php/topic,10160.0.html Tairov OKO-6,-8
http://www.secretprojects.co.uk/forum/index.php/topic,6712.0.html Biesnovat SK-3
http://www.secretprojects.co.uk/forum/index.php/topic,1975.0.html Izakson '104’ & DIS
http://www.secretprojects.co.uk/forum/index.php/topic,7951.15.html Grokhovsky G-38
Perhaps some of these moderators will be merged with this topic.
In OKB-293 V.Bolhovitinov in parallel with the construction of short-range bomber "S" was carried out design of high-speed heavy fighter with tandem engines M-107 and common to all variants (at the stage of preliminary design), the designation "I". Dealt with different layout options for pulling and pushing coaxial screws, using with an additional ramjet engine /designs by I. Merkulov / or without ... [Aircraft in the USSR 1917-1945, Book 2, the publishing division of TsAGI. pg.429] briefly about one of the options
http://www.secretprojects.co.uk/forum/index.php/topic,4532.0.html
Bolkhovitinov 'I' on base 'S' & Beriev's B-10
__________________________________________________________
In OKB-81 by L.Kurbala except project escort fighter:
http://www.secretprojects.co.uk/forum/index.php/topic,5362.0.html
Kurbala 'IS'
proposed project is twin-engined fighter with two diesel engines, located inside the fuselage, with a drive to the two screws at the front edge of the wing.
__________________________________________________________
According to V. Shavrov "History of aircraft construction in the USSR. 1938 - 1950." pg.120
G. Bakshaev in 1941 on the basis of "RK-I” has developed a twin-engine version of the original high-speed interceptor "RK-I-2" with tractor and pusher propeller. Another specific feature of this project was variable wing configuration similar to the "RK-I” or (RK-800)
__________________________________________________________
Also about seven projects twin-engined fighter aircraft in the period from October 1940 to March 1944 was designed OKB by P.Sukhoi . But this is a topic for another discussion, and Sukhoi Design Bureau difficult to attribute to a little-known (which can not be said of his heavy fighters of the period)

 

[Pioneer]

Some nice and interesting finds borovik!!
Thanks for sharing ;D

It's probably luck for the Russian's that they never persuade the Grushin Gr-1 design!
For I could picture a lot of Russian Gr-1's being shot down by fellow Russian fighters and AAA, being mistaken early in the war as Bf-110's

Regards
Pioneer

 

[Flitzer]

Great find Borovik.

Maybe I should do a Russian profile set in the near future.

The third one down, the Kocherygin DIS-2 AM37 reminds me of the Junkers 188/288 (?)

P

 

[airman]

Great find Borovik.

Maybe I should do a Russian profile set in the near future.

The third one down, the Kocherygin DIS-2 AM37 reminds me of the Junkers 188/288 (?)

P

Yes, the canopy reminds me family of Ju-88 , on Google Images i have seen (some seconds ago) various canopy and seems very similar to Junkers 288/388

 

[Wurger]

Thanks, Anatolyi,

precious informations.

 

[blackkite]

Hi! Izakson "104"?
http://www.docvid.ru/tiazhelie-istrebiteli-vtoroy-mirovoy/izakson-104.html

http://translate.google.fr/translate?hl=fr&sl=ru&tl=en&u=http%3A%2F%2Fwww.docvid.ru%2Ftiazhelie-istrebiteli-vtoroy-mirovoy%2Fizakson-104.html&sandbox=1

 

[hesham]

Hi! Izakson "104"?
http://www.docvid.ru/tiazhelie-istrebiteli-vtoroy-mirovoy/izakson-104.html

http://translate.google.fr/translate?hl=fr&sl=ru&tl=en&u=http%3A%2F%2Fwww.docvid.ru%2Ftiazhelie-istrebiteli-vtoroy-mirovoy%2Fizakson-104.html&sandbox=1

No,it was Biesnovat SK-3;

http://www.secretprojects.co.uk/forum/index.php/topic,6712.msg56627.html#msg56627

 

[blackkite]

Super. Thanks a lot.

 

[blackkite]

Hi! Grushin Gr-1 (Грушин Гр-1) larger three side view drawing, etc.

http://www.airwar.ru/enc/fww2/gr1.html

 

[blackkite]

Hi! Chetverikov Che-1(Четвериков Че-1) large image.

http://aviadejavu.ru/Site/Crafts/Craft31086.htm

 

[blackkite]

Hi! Yefremov SI (Ефремов СИ-1) larger three side view. Radiator position is unique.

https://www.aviarmor.net/aww2/projects/ussr/efremov_si1.htm

http://alternathistory.com/dvukhmotornyi-skorostnoi-istrebitel-np-efremova-si-1-sssr

 

[blackkite]

Bisnovat SK-3(Бисноват СК-3) another large three sude view drawing.

http://aviadejavu.ru/Site/Crafts/Craft30933.htm

https://www.ecured.cu/Bisnovat_SK-3

http://alternathistory.livejournal.com/907796.html

 

[hesham]

Bisnovat SK-3(Бисноват СК-3) another three sude view drawing.

http://aviadejavu.ru/Site/Crafts/Craft30933.htm

https://www.ecured.cu/Bisnovat_SK-3

http://alternathistory.livejournal.com/907796.html

We have it here;

http://www.secretprojects.co.uk/forum/index.php/topic,6712.msg56641.html#msg56641

 

[blackkite]

Hi! Kurbala IS(Курбала ИС) larger image.

http://aviadejavu.ru/Site/Crafts/Craft20895.htm

borovik-san already posted this aircraft here.
http://www.secretprojects.co.uk/forum/index.php/topic,5362.msg42700.html#msg42700

http://alternathistory.com/istrebitel-soprovozhdeniya-kurbalo-2-m-71-sssr-1941g
"By the beginning of March 1941, Kurbala developed an original twin-engine dive bomber/fighter escort project with M-71-Mi-mi 2d-71. "

"Design Start-1941
Flight of the first prototype-did not take place
The reason for the shutdown is 1942, the failure to NCAP from further development on heavy fighters.
Length-14.40 m, Wingspan-17.20 m, The area of the wing is 37.00 square meters.
Weight of the takeoff-10500 kg
Speed at calculated height-660 km h, Earth Speed-520 km h
Climb-770 m min, Range-2500 km, Ceiling-11000 meters
Motor-Two star Shvetsov M-71, 2,000 HP each
Crew-three persons
Small arms-two 23 mm MP-6 guns with ammunition 162 shells, four 7.62-mm machine-gun shkas with ammunition 3000 cartridges and two turel'nyh machine-guns ShKAS."

 

[linkoping]

Che-1 or PPI (pyaty pushechnyi istrebitel) = / five cannon fighter / by I.Chetverikov (OKB-256)
Year :1939
engine :2 x AM-107 (1400hp)
max speed :640 km/h
armament :
1X37 mm cannon by Taubin
2x20mm ShVAK
+ 2x20mm ShVAK (be on the defensive)
weights :loaded 5140kg
empty 4490kg
length: 15,02m
span: 17,0
ar.wing:25,8m2
ceiling: 11,000m
crew – 3
from m-n "Aviation & Cosmonautic" № 3 1999

where are the defense shvak？

 

[igor-mich]

where are the defense shvak？

 

[lancer21]

Responding to a personal message to Wurger,
perhaps this topic is heavy fighters of little-known bureau,
will be interesting and different.
Gr-1 or IDS (dalniy istrebitel soprovojdeniya) = /long-range escort fighter/ by P.Grushin (OKB plants-135)
Year :1940 December
engine :2 x AM-37 (1400hp)
max speed :650 km/h
armament :2x20mm ShVAK
2 x 7,62 ShKAS + 2x7,62 mm (in corner wings)
2x37 mm cannon (bottom)
weights :loaded 7650kg
empty 5420kg
length: 11,6m
span: 16,8m
ar.wing:42m2
ceiling: 11,700m
crew – 1

I must say, this looks like a Me-110 done right. Presumably must have been inspired by it?