词条 | Vz. 58 |
释义 |
|name=vz. 58 | image= Sa 58-JH01.jpg | image_size = 300 |caption=The vz. 58 P (with stock, pistol grip, and handguards; and sling). |origin= Czechoslovakia |type=Assault rifle |is_ranged=Yes |service=1959–present |used_by=See Users |wars={{plainlist|
|designer=Jiří Čermák |design_date=1956–1958 |manufacturer=Česká zbrojovka Uherský Brod |production_date=1959–1984 |number=Approx. 920,000 |variants=See Variants |weight={{convert|2.91|kg|lb|2|abbr=on}} |length={{plainlist|
|part_length={{convert|390|mm|abbr=on|1}} |width={{plainlist|
|height={{convert|255|mm|abbr=on|1}} |cartridge=7.62×39mm |action=Gas-operated, falling breechblock |rate=800 rounds/min |velocity={{convert|705|m/s|0|abbr=on}} Muzzle energy: 1988 J |range=100–800 m sight adjustments |max_range=2,800 m |feed=Staggered 30-round detachable box magazine, weight {{convert|0.19|kg|abbr=on}} unloaded |sights=Open-type iron sights with sliding rear tangent and shrouded front post {{convert|353|mm|abbr=on|1}} sight radius }} The vz. 58 (model 58) is a 7.62×39mm rifle designed and manufactured in Czechoslovakia and accepted into service in the late 1950s as the 7,62 mm samopal vzor 58 ("7.62mm submachine gun model 1958"), replacing the vz. 52 self-loading rifle and the 7.62×25mm Tokarev Sa 24 and Sa 26 submachine guns. While externally the vz. 58 resembles the Soviet AK-47, it is a different design based on a short-stroke gas piston. It shares no parts with Kalashnikov rifles, including the magazine.[5] History{{refimprove section|date=May 2014}}Development of the weapon began in 1956; leading the project was chief engineer Jiří Čermák assigned to the Konstrukta Brno facility in the city of Brno. The Soviet Union had begun insisting that the Warsaw Pact forces standardize on a common ammunition. As a result, the prototype, known as the "Koště" ("broom"), was designed to chamber the intermediate Soviet 7.62×39mm M43 cartridge, rather than the Czech 7.62×45mm vz. 52 round, used in both the earlier vz. 52 rifle and the vz. 52 light machine gun.[6] The assault rifle entered service in 1958 and over a period of 25 years (until 1984), over 920,000 weapons had been produced, fielded by the armed forces of Czechoslovakia, Cuba and several Asian and African nations. The vz. 58 was produced in three main variants: the standard vz. 58 P (Pěchotní or "infantry") model with a fixed buttstock made of a synthetic material (wood impregnated plastic, older versions used a wooden stock), the vz. 58 V (Výsadkový—"airborne"), featuring a side-folding metal shoulder stock, folded to the right side, and the vz. 58 Pi (Pěchotní s infračerveným zaměřovačem—"infantry with infrared sight"), which is similar to the vz. 58 P but includes a receiver-mounted dovetail rail bracket (installed on the left side of the receiver) used to attach an NSP2 night sight; it also has a detachable folding bipod and an enlarged conical flash suppressor. A successor to the vz. 58 was proposed in the 1990s; the 5.56×45mm NATO ČZ 2000 assault rifle has been suggested as a possible replacement but due to a general lack of defense funds within the Czech Republic, the program was postponed. Another recent contender is the ČZW-556 assault rifle and ČZW-762 light machine gun which both use lever-delayed blowback which has more reliable accuracy and performance over the gas operation. In 2011, the Czech army started replacing vz. 58 with CZ-805 BREN. While vz. 58 still remains the main assault rifle of the Slovak army, the Slovak army has also been eyeing CZ-805 as a possible replacement to the aging vz. 58 rifles. Design details{{refimprove section|date=May 2014}}Operating mechanismThe vz. 58 is a selective fire gas-operated weapon that bleeds expanding combustion gases generated in the barrel from the ignited cartridge through a port drilled in the barrel, {{convert|215|mm|abbr=on|1}} from the chamber, opening into a hollow cylinder located above the barrel that contains a short-stroke piston. The vz. 58 does not have a gas regulator and the full force of the gas pressure is exerted on the piston head, propelling it backwards in a single impulsive blow. The piston is driven back only {{convert|19|mm|abbr=on|1}} when a shoulder on the piston rod butts against the seating and no further movement is possible. There is a light return spring held between the piston shoulder and the seating which returns the piston to its forward position. The gas cylinder is vented after the piston has traveled back {{convert|16|mm|abbr=on|1}} and the remaining gases are exhausted into the atmosphere on the underside of the cylinder via two ports. The entire piston rod is chromium-plated to prevent fouling. The locking system features a locking block hinged from the bolt and housed in the bolt carrier that contains two locking lugs which descend into and engage locking shoulders in the receiver's internal guide rails. The weapon is unlocked by the short tappet-like stroke of the piston rod as it strikes the bolt carrier and drives it rearwards. After {{convert|22|mm|abbr=on|1}} of unrestricted travel, a wedge-like surface on the bolt carrier moves under the breech locking piece and lifts it up and out of engagement with the locking recesses in the steel body. The breech locking piece swings up and this movement provides the leverage required for primary extraction. The breech block is then carried rearwards extracting the empty cartridge casing from the chamber. A fixed ejector passes through a groove cut in the underside of the bolt and the case is flung upwards clear of the gun. FeaturesThe spring-loaded extractor and firing pin are both housed inside the bolt, while the fixed ejector is slotted inside the receiver. The extractor retains the firing pin and is powered by its own plunger and spring. The weapon does not have a conventional rotating hammer but a linear hammer instead. The hammer is a steel cylinder hollowed from one end almost throughout its entire length to accommodate its own operating spring. At the open end of the cylinder, a plate is welded and a groove is cut in each side of this to slide on the receiver guide rails. This linear hammer enters the hollow bolt and drives a free-floating firing pin forward with each shot.[6] The vz.58 uses a trigger mechanism with a lever-type fire mode selector, which is also a manual safety against accidental discharge. When the selector lever is placed in its rear position ("1"—single fire) the sear is disabled and the left hammer catch is rotated by the disconnector, which is depressed by the bolt carrier after every shot and is therefore disconnected from the hammer catch. The forward setting of the selector lever ("30"—automatic fire) disables the disconnector, and the left hammer catch meshes with the sear mechanism. The center ("safe") setting with the selector lever pointing vertically downwards, mechanically lowers the trigger bar and the disconnector so there is no connection between the trigger and the semi-automatic sear which holds the hammer. The rifle also has an internal safety, which prevents the weapon from discharging when out of battery. The right linear hammer catch disables it, and it can only be released by pulling the charging handle back and cocking the weapon. The weapon is fed from a detachable box magazine with a 30-round cartridge capacity and made from a lightweight aluminium alloy.[6] When the last round from the magazine is fired, the bolt will remain locked open on the bolt catch, activated by the magazine's follower. The magazine release tab is located at the base of the receiver on the left side, behind the magazine well. The bolt carrier has a built-in guide rail used for reloading from 10-round stripper clips (from the SKS rifle). Despite their similarity, vz. 58 magazines are not interchangeable with those of the Kalashnikov-pattern weapons. An interesting feature on this rifle is the ability to quickly change the type of stock. The vz. 58 can appear either with its original fixed stock (in either beech wood or composite material) or folding steel stock, or with one of the many aftermarket stocks available – including AR-15 style stock adapters that mount a buffer tube to the receiver. The latter usually has the buffer tube slightly angled down as to compensate for the very low ironsights on the vz. 58. Switching between the various options requires merely removal of a bolt at the rear of the receiver and swapping in the stock of choice. SightsThe rifle's iron sights consist of a fully adjustable front post and a tangent rear sight with a sliding notch with range denominations from 100 to 800 m, graduated every 100 m. Besides this, the left side of the rear sight leaf is marked with the letter "U" (univerzální meaning "universal"), for snap shooting, firing at moving targets and night combat at ranges up to 300 m. The rifle's sight radius is {{convert|15|in|cm}}.[6] The front sight base also serves as a mounting platform for the vz. 58 edged bayonet. AccessoriesSeveral modernization accessories have been manufactured for the vz. 58 platform from different companies. Accessories include "tactical" bolt release, extended and/or ambidextrous magazine release paddles, ambidextrous fire mode selectors, custom handguard rails, several types of sight mounting options and various muzzle brakes and compensators. Both civilian and military users use these upgrades, and they also see frequent use with private military companies in the Middle East. Additional equipment supplied with the rifle includes: 4 spare magazines, a magazine pouch (in either canvas, leather, or leatherette), vz. 58 bayonet and scabbard, cleaning brush and rod, muzzle cap, oil bottle, unified sling, front sight adjustment tool, disassembly aid and a threaded blank-firing adaptor. The vz. 58 also has a proprietary bipod, flash hider and scope mount for NSP-2 night vision scope (vz.58 Pi variant). Grenade launching inserts, as well as under barrel grenade launchers were developed but never adopted. Variants
Users
Nonstate users
See also
References1. ^{{cite web|url=http://zpravy.ihned.cz/cesko/c1-55205450-vondra-si-ve-vietnamu-prohlizel-valecnou-korist-je-to-nejake-zrezivele-rekl-tise-general-picek |title=Vondra si ve Vietnamu prohlížel válečnou kořist. Je to nějaké zrezivělé, řekl tiše generál Picek | zpravy.ihned.cz - Česko |publisher=zpravy.ihned.cz |date=2012-03-28 |accessdate=2012-08-17}} 2. ^{{cite book |last=McNab |first=Chris|title=20th Century Military Uniforms |date=2002 |edition=2nd |publisher=Grange Books |location=Kent |isbn=1-84013-476-3|page=63|ref=harv}} 3. ^{{cite book|title=Armies of the Gulf War|author=Gordon L. Rottman|page=58|year=1993|isbn=1855322773}} 4. ^{{cite book|url=http://www.smallarmssurvey.org/publications/by-type/yearbook/small-arms-survey-2012.html|chapter-url=http://www.smallarmssurvey.org/fileadmin/docs/A-Yearbook/2012/eng/Small-Arms-Survey-2012-Chapter-10-EN.pdf|chapter=Surveying the Battlefield: Illicit Arms In Afghanistan, Iraq, and Somalia|title=Small Arms Survey 2012: Moving Targets|publisher=Cambridge University Press|year=2012|author=Small Arms Survey|page=321|isbn= 978-0-521-19714-4}} 5. ^{{cite news| url=http://www.thefreelibrary.com/No+AK+this%3a+the+Czech+Sa+vz.58.-a0192435268 | work=Guns Magazine | title=No AK this: the Czech Sa vz.58 | year=2009}} 6. ^1 2 3 {{citation|url=http://findarticles.com/p/articles/mi_m0BQY/is_8_55/ai_n32097770/|title=Century's VZ.58V: and this one shoots!|author=Holt Bodinson|work=Guns Magazine|date=August 2009}} 7. ^{{Cite web |url=http://www.globaldefence.net/deutsch/asien/thailand/dossier.htm |title=Rung Paisarn RPS-001 |access-date=2016-02-21 |archive-url=https://web.archive.org/web/20100323160718/http://www.globaldefence.net/deutsch/asien/thailand/dossier.htm |archive-date=2010-03-23 |dead-url=yes |df= }} 8. ^1 2 3 4 5 6 7 8 9 10 11 {{cite book |editor1-first=Richard D. |editor1-last=Jones |editor2-first=Leland S. |editor2-last=Ness |title=Jane's Infantry Weapons 2009/2010 |date=January 27, 2009 |edition=35th |publisher=Jane's Information Group |location=Coulsdon |isbn=978-0-7106-2869-5}} 9. ^1 2 3 {{cite web|url=http://www.czechpoint-usa.com/history-of-the-sa-vz-58 |title=Czechpoint - History of the Sa vz. 58 - History of the Sa vz. 58 rifle |publisher=Czechpoint-usa.com |accessdate=2010-09-04}} 10. ^{{cite book|last=Jowett|first=Philip|title=Modern African Wars (5): The Nigerian-Biafran War 1967-70|year=2016|publisher=Osprey Publishing Press|location=Oxford|isbn=978-1472816092|page=22|ref={{harvid|Jowett|2016}}}} 11. ^{{cite book|url=http://www.smallarmssurvey.org/publications/by-type/yearbook/small-arms-survey-2007.html|chapter-url= http://www.smallarmssurvey.org/fileadmin/docs/A-Yearbook/2007/en/full/Small-Arms-Survey-2007-Chapter-06-EN.pdf|chapter=Armed Violence in Burundi: Conflict and Post-Conflict Bujumbura|title=The Small Arms Survey 2007: Guns and the City|publisher=Cambridge University Press|year=2007|author=Small Arms Survey|page=204|isbn=978-0-521-88039-8}} 12. ^{{cite web|url=http://www.army.cz/scripts/detail.php?id=5080|title=7,62mm samopal vzor 58|language=Czech|work=Czech army|archiveurl=https://web.archive.org/web/20041226150736/http://www.army.cz/scripts/detail.php?id=5080|archivedate=2004-12-26}} 13. ^{{cite web|url=http://www.army.cz/assets/files/9334/zbrane_definit.pdf |title=RUČNÍ ZBRANĚ AČR |language=Czech |format=PDF |pages=16–21 |archiveurl=https://web.archive.org/web/20120229001255/http://www.army.cz/assets/files/9334/zbrane_definit.pdf|archivedate=2012-02-29}} 14. ^{{cite web|url=http://olomoucky.denik.cz/zpravy_region/armada-prevzala-ve-stepanove-nove-utocne-pusky-fot.html |title=Armáda převzala ve Štěpánově nové útočné pušky. FOTO - Olomoucký deník |publisher=Olomoucky.denik.cz |date=2011-07-19 |accessdate=2012-08-17}} 15. ^{{cite web|url=https://www.thefirearmblog.com/blog/2016/02/05/czech-republic-donate-vz-58s-iraq-kurdistan-fight-isis/|title=Czech Republic To Donate vz. 58s To Iraq, Kurdistan, To Fight ISIS|date=5 February 2016 |language=English |format=Web}} 16. ^{{cite web|url=https://www.defence24.com/czech-rifles-and-ammunition-for-the-peshmerga-prague-supporting-the-fight-against-daesh-again|title=Czech Rifles and Ammunition for the Peshmerga. Prague Supporting the Fight Against Daesh Again|date=27 January 2016 |language=English |first=Juliusz|last= Sabak|format=Web}} 17. ^{{cite book|title=Identifier les sources d’approvisionnement: Les munitions de petit calibre en Côte d’Ivoire|url=http://www.smallarmssurvey.org/fileadmin/docs/C-Special-reports/SAS-SR21-CotedIvoire-FR.pdf|first=Holger |last=Anders|date=June 2014|publisher=Small Arms Survey and United Nations Operation in Côte d'Ivoire|isbn=978-2-940-548-05-7|page=15|language=fr}} 18. ^{{cite book|title=US Army Long-Range Patrol Scout in Vietnam 1965-71|series=Warrior 132|publisher=Osprey Publishing|first=Gordon L. |last=Rottman|date= 10 Oct 2008|isbn=9781846032509|page=32|url=https://books.google.fr/books?hl=fr&id=mHqHCwAAQBAJ&q=Vz+58}} 19. ^{{cite web |url=http://www.ceskapozice.cz/en/business/companies/czech-defense-minister-talks-high-tech-arms-sales-vietnam |title=Czech Defense Minister talks up high-tech arms sales to Vietnam | Czech Position |publisher=Ceskapozice.cz |date=2012-03-29 |accessdate=2012-08-17 |archive-url=https://web.archive.org/web/20120709115337/http://www.ceskapozice.cz/en/business/companies/czech-defense-minister-talks-high-tech-arms-sales-vietnam |archive-date=2012-07-09 |dead-url=yes |df= }} 20. ^{{cite book|url=http://www.smallarmssurvey.org/fileadmin/docs/A-Yearbook/2015/eng/Small-Arms-Survey-2015-Highlights-EN.pdf|chapter-url= http://www.smallarmssurvey.org/fileadmin/docs/A-Yearbook/2015/eng/Small-Arms-Survey-2015-Chapter-07-EN.pdf|chapter=Waning Cohesion: The Rise and Fall of the FDLR–FOCA|title=Small Arms Survey 2015: weapons and the world|publisher=Cambridge University Press|year=2015|author=Small Arms Survey|ref={{harvid|Small Arms Survey 2015}}|page=201}} 21. ^{{cite web|author=M. Ahsan Jamal |url=http://www.ir-ia.com/IRIA_ISIS-Weapons-and-Ammunitions.html |title=ISIS Weapons and Ammunitions |publisher=International Relations Insights & Analysis |accessdate=2017-06-29}} 22. ^{{cite web|url=https://www.bbc.co.uk/news/uk-32919223 |title=Murder weapon discovered in Imperial War Museum display |publisher=BBC News |date=2015-05-28}} 23. ^{{cite book|series=HSBA Arms and Ammunition Tracing Desk|date=December 2012|page=7|title=Weapons seized from the forces of George Athor and John Duit|url=http://www.smallarmssurveysudan.org/fileadmin/docs/facts-figures/arms-ammunition-tracing-desk/Weapons_seized_from_George_Athor_and_John_Duit.pdf|publisher=Small Arms Survey}} Bibliography{{refbegin}}
External links{{commons|Sa vz. 58}}
6 : 7.62×39mm firearms|Assault rifles|Rifles of the Cold War|Infantry weapons of the Cold War|Rifles of Czechoslovakia|Weapons of Czechoslovakia |
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