TNSh-20 , or TNSh-1 ( Nudelman's tank - Shpitalnogo [3] [1] ) - tank version of the 20-mm aircraft gun ShVAK . Installed as a main weapon on a light tank T-60 [3] .
| TNSh-20 | |
|---|---|
 light tank t-60 | |
| Type of | Tank gun |
| A country |  the USSR |
| Service history | |
| Years of operation | since 1941 |
| In service |  |
| Wars and conflicts | The Great Patriotic War |
| Production history | |
| Constructor | OKB-15 , OKB-16 |
| Designed by | 1941 |
| Manufacturer | Plant number 2 [1] |
| Specifications | |
| Weight, kg | 68 [2] |
| Barrel length, mm | 82.4 [3] |
| Projectile weight, kg | 0.096 [2] |
| Caliber , mm | 20 |
| Rate of fire shots / min | 200 [2] min. (up to 750 per minute [3] ) |
| starting speed projectile, m / s | 815m / s [3] |
| Maximum range, m | tabular 2500 m, sighting 7000 m [3] / 6800 m [2] |
| Type of ammunition | automatic, clip feed |
| Aim | telescopic TMFP-1 [3] |
Content
Creation History
The OKB-15 was created in a short time together with OKB-16 on the basis of the wing and turret versions of the ShVAK-20 air cannon [3] [4] . First, in the OKB-15 on the instructions of the NCU about installing ShVAK in the turret of the T-40 tank in July 1941. On August 4, 20-mm and 23-mm guns were shot in the OKB-16, according to the positive results of which, albeit with massive failures, tank 20 -mm gun transferred to the development in the OKB-15 where it is brought to the final form [4] .
In September 1941, the T-60 tank, 9 days after being put into service, was equipped with a prototype TNSh-20, which at that time had the ShVAK-Tank index [4] .
In parallel with the development of the production of guns, its refinement was carried out, including taking into account the results of front-line use, in connection with which it was officially adopted on December 1, and on January 1, 1942 received the designation TNSh-1, later they became known as TNSh-20, mass production was transferred at Plant No. 2 [3] [5] [6] .
| Production [7] | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 |
|---|---|---|---|---|---|---|
| Plant number 2 | - | OK. 500 | 8143 | - | - | - |
| Plant β314 | - | ? | 214 | - | - | - |
| Plant β525 | - | - | 130? | - | - | - |
Construction Description
TNSh-20 was located in the turret of the tank with a significant shift to the right about the axis, which increased the convenience of guidance, this fact forced to make changes in the readings of the TMFP-1 telescopic sight .
Feed band : 754 rounds (13 boxes: 7 boxes in the rack on the bottom of the fighting compartment, 1 box behind the driver's seat, 1 box at the gun, a rack with 4 boxes on the left side [6] ) [3] . The angle of vertical guidance -5 ... + 27 Β° [2] .
The basis of the design was the wing ShVAK, the barrel was borrowed from the motor-cannon, the turret was reloaded, the trigger mechanism, sight and rear plate were re-created [4] .
TNS-20 allowed for certain skills to conduct a single shooting [3] .
| Penetration [2] | 50 m | 100 m | 300 m | 500 m | 1000 m |
|---|---|---|---|---|---|
| V 0 = 817 m / s [8] | 25β /? | 18- /? | - | - | - |
Application
This type of gun was equipped with a light tank T-60 , T-38 and two - turret T-26 , since January 1942 they re - equipped the T-30 and T-40 , in the case of receipt of tanks for large repairs [1] .
See also
- T-60
Notes
- β 1 2 3 Svirin, 1999 , p. four.
- β 1 2 3 4 5 6 Svirin, 1999 , p. 9.
- β 1 2 3 4 5 6 7 8 9 10 11 Bariatinsky, 2014 .
- β 1 2 3 4 Svirin, 1999 , p. 3
- β Svirin, 1999 , p. 3-4.
- β 1 2 Kolomiets, 2010 , p. 20.
- β Svirin, 1999 , p. 39
- β An armor-piercing projectile with tungsten carbide core Svirin, 1999 , p. 9
Literature
- Baryatinsky, M. All tanks of the USSR. The most complete encyclopedia . - Liters, 2014. - p. 165. - ISBN 978-5-699-54263-5 .
- Kolomiets, M. Tanks- "suicide bombers" of the Great Patriotic War . - M .: Strategy KM: Yauza: Eksmo, 2010. - (War and us. Tank collection). - ISBN 9785457358683 .
- Svirin, M. Automatic small-caliber tank guns. - In: Artillery armament of Soviet tanks 1940-1945 // Vertical. Supplement to the magazine "Armada". - 1999. - β 4.
Links
- Potapov, V. 20-mm tank gun TNSh . www.battlefield.ru (September 21, 2005). The appeal date is November 28, 2015.