SPP-1 underwater pistol
Soviet four-barreled underwater dart pistol
SPP-1 | |
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SPP-1M
|
|
Type | Underwater pistol |
Place of origin | Soviet Union |
Service history | |
In service | 1975–present |
Used by | Russia |
Production history | |
Designer |
Vladimir Simonov
[1]
at
TsNIITochMash [2] - ЦНИИТочмаш (Central Scientific Institute for Precision Machine Building) |
Designed | 1960s (Late) |
Manufacturer |
TOZ (Tulsky Oruzheiny Zavod)
(Тульский Оружейный Завод) Tula Arms Plant [3] |
Produced | 1971–present [4] |
Variants | SPP-1M [2] |
Specifications | |
Mass |
950 grams (34
oz) empty,
[2]
[5]
1,030 grams (36 oz) loaded [6] |
Length | 244 millimetres (9.6 in) [2] [5] |
Width | 37 millimetres (1.5 in) [5] |
Height | 136 millimetres (5.4 in) [5] |
|
|
Cartridge | 4.5×40mmR [7] |
Caliber | 4.5 millimetres (0.18 in) [2] |
Action | double action [2] |
Muzzle velocity | 240 to 250 metres per second (790 to 820 ft/s) in air [7] |
Effective firing range |
in air, 15 to 20 metres (49 to 66
ft);
[2]
in water,
[5]
|
Feed system | 4 barrels with a cartridge in each [2] |
The SPP-1 underwater pistol was made in the Soviet Union for use by Soviet frogmen as an underwater firearm . [2] It was developed in the late 1960s and accepted for use in 1975. [8] Under water, ordinary-shaped bullets are inaccurate and very short-range. As a result, this pistol fires a round-based 4.5 millimetres (0.18 in) caliber steel dart about 115 millimetres (4.5 in) long, weighing 12.8 grams (0.45 oz) , which has longer range and more penetrating power than speargun spears. The complete cartridge is 145 millimetres (5.7 in) long and weighs 17.5 grams (0.62 oz) . [7]
Design
The SPP-1 has four barrels, each containing one cartridge. Its ammunition comes as a magazine of four cartridges which is inserted into the pistol's breech. [6]
Its barrel is not rifled ; the fired projectile is kept in line by hydrodynamic effects. As a result, it is somewhat inaccurate when fired out of water. [1]
A double-action firing mechanism fires one cartridge sequentially for each pull of the trigger. When all four cartridges are spent, the gun can be reloaded above or below water. [2]
The SPP-1M pistol is essentially the same as the SPP-1, with the following differences: [6]
- It has an extra spring above the sear to improve the trigger pull.
- Its trigger guard is larger to accommodate diving gloves.
The weapon was designed by Vladimir Simonov , the cartridge by Pyotr Sazonov and Oleg Kravchenko . [1] Simonov also designed the APS amphibious rifle . [9]
Performance
Depth reduces range because the higher pressure closes the cavity sooner. Once the projectile is no longer supercavitating , hydrodynamic drag increases greatly, and the projectile becomes unstable.
Lethal range is defined as the range from which it can easily penetrate a padded underwater suit or a 5 millimetres (0.20 in) thick glass faceplate. [5]
It is manufactured by TOZ (Tulsky Oruzheiny Zavod/ Тульский Оружейный Завод) Tula Arms Plant , [3] and exported by Rosoboronexport , [2] the state agency for Russia's export and import of defense-related products.
Users
Variants
See also
References
- Notes
- 1 2 3 ” Firearms Technical Trivia ”, cruffler.com , November 2001, Retrieved 2010-04-05
- 1 2 3 4 5 6 7 8 9 10 11 Popenker, Max R. " SPP-1 underwater pistol Archived 2004-12-09 at the Wayback Machine ", world.guns.ru , Retrieved 2010-04-05
- 1 2 “ Special Submarine Pistol SPP-1M Archived 2010-01-29 at the Wayback Machine ”, Tulsky Oruzheiny Zavod(TOZ), Tula Arms Plant , Retrieved 2010-04-05
- ↑ "ЦАМТО / / Ростех завершил поставки подводного оружия инозаказчику" .
- 1 2 3 4 5 6 “ 4.5-mm SPP-1M Underwater Pistol Archived 2008-06-17 at the Wayback Machine ”, TsNIITochMash , Retrieved 2010-04-05
- 1 2 3 “ SPP-1 and SPP-1M underwater pistol 4.5mm ”, www.securityarms.com , Retrieved 2010-04-05
- 1 2 3 “ 4.5-mm SPS underwater fire cartridge Archived 2008-06-17 at the Wayback Machine ”, Tsniitochmash , Retrieved 2010-04-05
- ↑ "Russia upgrades amphibious rifles for commando swimmers | weapons defence industry military technology UK | analysis focus army defence military industry army" .
- ↑ Popenker, Max R. " APS underwater assault rifle (5.6x39 mm MPS) Archived 2004-10-25 at the Wayback Machine ", world.guns.ru , Retrieved 2010-04-05
- ↑ Small Arms Survey (2012). "Blue Skies and Dark Clouds: Kazakhstan and Small Arms" . Small Arms Survey 2012: Moving Targets . Cambridge University Press . p. 133. ISBN 978-0-521-19714-4 . Archived from the original (PDF) on August 30, 2012.
- ↑ Sutton, HI. "Iran Copies' Russian SPP-1M Underwater Pistol" . www.hisutton.com . HI Sutton . Retrieved 8 June 2021 .
- Sources
- Cutshaw, Charlie, “The New World of Russian Small Arms & Ammo”, 1998, ( Paladin Press , Boulder, Colorado) ISBN 0-87364-993-1
External links
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- Picture and information
- Technical specification
- Description, image of firearm and darts, and specifications
- Image of firearm, breech opened, and specifications
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