2,8-cm-sPzB 41 (2,8cm protitankový kanón)

2,8-cm-sPzB 41 (2,8 cm anti-tank gun)
2,8-cm-schwere Panzerbüchse 41
     
Název:
Name:
2,8 cm schwere Panzerbüchse 41 2,8 cm schwere Panzerbüchse 41
Originální název:
Original Name:
2,8 cm schwere Panzerbüchse 41
Kategorie:
Category:
lehký protitankový kanón light anti-tank gun
Výrobce:
Producer:
DD.MM.1940-DD.MM.1943 Waffenfabrik Mauser AG, Oberndorf am Neckar /
Období výroby:
Production Period:
DD.MM.1940-DD.MM.1943
Vyrobeno kusů:
Number of Produced:
2797
Prototyp vyroben:
Prototype Built:
DD.MM.1940
Obsluha:
Crew:
3
Technické údaje:
Technical Data:
 
Bojová hmotnost:
Combat Weight:
229 kg 505 lb
Přepravní hmotnost:
Manoeuvre Weight:
229 kg 505 lb
Ráže:
Calibre:
28 / 20 mm 1.10 / .78
Délka hlavně:
Barrel Length:
1730 mm 68 ⅛ in
Celková délka:
Overall Length:
2690 mm 8 ft 9 ⅞ in
Celková šířka:
Overall Width:
965 mm 3 ft 2in
Celková výška:
Overall Height:
838 mm 2 ft 9in
Náměr:
Elevation:
-5 - +30 °
Odměr:
Traverse:
70 °
Přepravní rychlost:
Manoeuvre Speed:
? km/h ? mph
Používaná munice:
Ammo Used:
2,8 cm Panzergranate Patrone 41
2,8 cm Sprenggranate Patrone 41
2,8 cm Panzergranate Patrone 41
2,8 cm Sprenggranate Patrone 41
Výkony:
Performance:
 
Maximální dostřel:
Maximum Range:
500 m - 2,8 cm Pzgr.41
546 yd 2 ft 5in yd - 2,8 cm Pzgr.41
Rychlost střelby:
Rate of Fire:
30 ran/min 30 rpm
Úsťová rychlost:
Muzzle Velocity:
1430 m/s - 2,8 cm Pzgr.41
4691.6 ft/s - 2,8 cm Pzgr.41
Uživatelské státy:
User States:




Poznámka:
Note:
- -
Zdroje:
Sources:
https://en.wikipedia.org/wiki/2.8_cm_sPzB_41
www.lexikon-der-wehrmacht.de
www.militaryfactory.com

2,8-cm-sPzB 41 (2,8cm protitankový kanón) -


URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#634942 Version : 0
2.8 cm black Panzerbüchse 41


2.8 cm sPzB 41 was a German anti-tank weapon working on the principle of tapering (conical) barrel. In English literature, the term "The squeeze bore principle" is used. The weapon was officially classified as a heavy anti-tank rifle (schwere Panzerbüchse), although many of its characteristics make it a light anti-tank cannon.


Description
Although the sPzB-41 was classified as a heavy anti-tank rifle (schwere Panzerbüchse), the following facts support the categorization among light anti-tank guns. The weapon had a mechanism for damping recoil. The weapon also had a chassis (wheeled or skis) and a cover to protect the operator. The only significant element common to anti-tank rifles was the absence of a mechanism to control the aim and measurement of the weapon. Thanks to the relatively light construction, the elevation and measurement of the weapon was controlled manually. The projectile was lined with two rings of soft metal, which deformed along the road barrel. The result of this construction was a high muzzle velocity of the projectile fired, up to 1400 m/s! At the end of the barrel was fitted a muzzle brake. The horizontal end of the charge chamber was blocked automatically after charging. The weapon was equipped with an open sight to a distance of 500m. The 3.7cm PaK 35/36 telescopic sight could also be mounted.
The weapon was equipped with a hydraulic-mechanical device to dampen recoil. The chassis was variable. The wheel was fitted with rubber tires, or rubber wheels fitted via suspension to a support frame. There was also a winter variant with mobile skis. The wheels could be removed to reduce the overall silhouette of the machine to facilitate camouflage. The whole operation did not take more than 30-40 seconds for the trained crew. The concept of the weapon allowed it to be divided into five pieces, while the heaviest weighed 62 kg, which allowed transport without the use of technology and made the weapon suitable, among other things, for airborne units.


Development and production
The technique of using a tapering barrel and a deforming projectile was first patented in Germany in 1903 by the designer Karl Puff. In the interwar period, another German designer, Gerlich, continued to develop. The result of his efforts was a 7mm experimental anti-tank rifle with a muzzle velocity of 1800 m/s!
On these foundations, the Mauser-Werke AG Oberndorf am Neckar armory began in 1939-1940 with the development of a completely new 28/20 mm anti-tank weapon, originally designated the Gerat 231 or MK.8202. In the summer of 1940, an experimental series of 94 pieces (according to some sources, only 30) was submitted to the army for testing. After minor modifications, serial production began in 1941 under the designation 2.8 cm schwere Panzerbüchse 41. The production price of one piece was calculated at 4,520 RM. For comparison, the production price of 5cm PaK 38 was around 10,600 RM. Production continued until 1943, when it was stopped due to the lack of tungsten needed to produce ammunition. Nevertheless, the 2.8 cm sPzB 41 served reliably for the rest of the war.


Organization and structure
2.8 cm sPzB 41 was used by some motorized divisions, mechanized infantry units, mountain and airborne units. Several pieces were also delivered to anti-tank and engineering units. The weapon was deployed from the beginning of the eastern campaign, but also appeared in North Africa, Sicily and Tallinn and on the Western Front in 1944-1945.


For a short distance, 2.8 cm sPzB 41 could eliminate almost all light and medium enemy tanks. It allegedly managed to endanger KV-1 and IS-2, but I'm just quoting sources.
Theoretically, it is possible, because the maximum penetration characteristic was up to 75 mm, but we probably won't know how it was in practice.


Versions
2.8 cm sPzB 41
- basic version see TTD
Type - heavy tank blades
Place of origin - Germany
Year of origin - 1940
Manufactured - 1940 to 1943
In service - 1941 to 1945
Manufacturer - Mauser Werke AG Oberndorf am Neckar
Made - 2,797 pcs


Weight - 229 kg
Length - 2,690 mm
Barrel length - 1,730 mm including muzzle brake
Width - 965 mm
Height - 838 mm
Operation - 3

Caliber - 28/20 mm
Hydromechanical recoil damping
Two-track chassis
Elevation -5 ° to 30 °
Measure - 70 °
Cadence - 30 rounds per minute
Muzzle velocity - 1,400 m/s
Effective range - 500 m


2.8 cm sPzB 41 leFl 41 (2.8 cm heavy tank bells 41 on light field mount 41)
- Version developed for airborne units. A lightweight chassis without suspension was used, the wheels were reduced and the shield was mostly removed. The resulting weight was 139 kg (118 kg without vehicle). The chassis allowed 360 ° measurement and elevation from -15 ° to 25 °.


2.8 cm KwK 42
- tank modification. 24 pieces were produced. It is not clear if they have ever been used outside of tests. sPzb 41 was mounted on SdKfz 250/11 half-belts. A few pieces were mounted on armored vehicles SdKfz 221.


Ammunition
There were two types of ammunition developed for 2.8 cm sPzB 41
- penetrating 2.8 cm Pzgr.41
0.125 kg tungsten carbide core, 40 mm long with a diameter of 10.9 mm containing 9.1% tungsten, coated in mild steel, the ballistic tip is made of magnesium alloy.
- shattering 2.8 cm Sprg.41
0.093 kg filled with 5 g PETN (pentaerythritol tetranitrate, known as penthrite)


Conclusion
The principle of the conical barrel and the deforming projectile was used only to a limited extent in the Second World War. Mass production required advanced technology and high production standards.
Apart from Germany, the United Kingdom tried to do this in a limited form in the form of the Littlejohn adapter, which was basically a main superstructure using the same principle.
In the Soviet Union, V. G. Grabin's design office dealt with this issue. In 1940, however, further work was abandoned due to persistent technological problems.
German success has also inspired developers in the US who experimented with the same 28/20mm configuration. They also worked on the configuration of the 37mm Gun M3, but by the end of the war they had not achieved practical results.


2.8 cm sPzB 41 combined good penetration (short distance), high firing cadence and simple, light and detachable construction. Nevertheless, it also had several shortcomings.
- technological complexity of production, especially and its relatively low life (about 500 rounds), the truth is that few weapons have survived .....
- poor effectiveness of fragmentation ammunition
- relatively short range
- weak post-war effect of ammunition
- and finally, the use of tungsten as the core of penetrating ammunition. Each burn wound was a waste of precious raw material, which was absolutely unacceptable in the long run.


Production 2.8 cm sPzB 41
1940 - 94 pcs
1941 - 349 pcs
1942 - 1030 pcs
1943 - 1324 pcs
total- 2797 pcs


Ammunition production for 2.8 cm sPzB 41, 1941-1943
jerky grenade Sprg. 41 weighing 2.8 kg - 512,600 pcs
piercing grenade Pzgr. 41 weighing 2.8 kg - 1,602,800 pcs


Penetration characteristics 2.8 Pzgr. 41
100m/60 °/52 (69) mm
100m/90 °/75mm
300m/60 °/46mm
400m/90 °/40mm
500m/60 °/40 (52) mm



Resources
http://www.answers.com/topic/2-8-cm-spzb-41
www.waffenhq.de
http://en.wikipedia.org/wiki/2.8_cm_sPzB_41
www.lexikon-der-wehrmacht.de
forum.valka.cz
forum.valka.cz
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#223909 Version : 0
Supplement to


The gun was officially adopted in June 1940 and was designated 2.8cm/2cm sPzB 41. The weapon has a semi-automatic horizontal wedge breech, which allowed the weapon to fire at a rate of 12-15 rounds per minute. This weapon was fitted with a double-barrelled stock. The weapon lacks the conventional bore and square mechanisms. The weapon was always operated by only two persons - the shooter and the loader. The operator was protected by a double armoured shield of 3mm + 3mm thickness.
The barrel was loaded by means of pins on the cradle. The sight was adjusted by two handles located on the upper bed (behind the breech).
A lightweight version of the rifle was developed for the Luftwaffe, the weapon had a lightened and simplified receiver and gun bed, and had only one support arm. The marking of this weapon is sPzB 41 leFL41.

TTD sPzB 41:
Length of rifled barrel: 1370 mm
Max. towing speed: 50 km
Max. range:1000m
Max. range of sights: 500 m
Effective range: 300 mm
Aim: -4 +42°
Aim: 60°


Penetration of PzGr 41
for 30° armour inclination
100m- 52mm, 300mm-46mm, 500m-40mm, 1000m-25m
for 90° armour inclination
100m - 93 mm, 500 m - 66 mm


The main drawback of the weapon was the rapid wear of the barrel. At the beginning the service life was 250 shots, at the end of production the service life was 500 shots.


On 1 March 1945, 775 rifles were in service and 78 were in storage. But the guns no longer had enough ammunition.
The ammunition was carried in special tin cases for 12 rounds.


Source of the photo data author's archive +RGAKFD

2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Lehká verze sPzB 41 leFL41
Všiměte si ramena lafety a závěru. 
Fotka je z léta v Jugoslávije 1942.

Lehká verze sPzB 41 leFL41
Všiměte si ramena lafety a závěru.
Fotka je z léta v Jugoslávije 1942.

2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Standartní provedení s vozíkem pro přepravu munice

Standartní provedení s vozíkem pro přepravu munice
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Standartní výroba sPzB 41
Zde je dobře vidět dvojitý štít + mířidla

Standartní výroba sPzB 41
Zde je dobře vidět dvojitý štít + mířidla

URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#226988 Version : 0
2.8 cm sPzB 41
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Sd.Kfz. 250/11 (2,8 cm sPzB 41)

Sd.Kfz. 250/11 (2,8 cm sPzB 41)
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - 2,8 cm sPzB 41 auf Sd.Kfz. 221

2,8 cm sPzB 41 auf Sd.Kfz. 221
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - 2,8 cm sPzB 41 leFl 41 (2,8 cm schwere Panzerbüchse 41 auf leichterfeldlafette 41) 
- Verzia vyvinutá pre výsadkové jednotky. Použitý bol odľahčený podvozok bez odpruženia, kolesá boli zmenšené a štít bol väčšinou odmontovaný. Výsledná hmotnosť bola 139

2,8 cm sPzB 41 leFl 41 (2,8 cm schwere Panzerbüchse 41 auf leichterfeldlafette 41)
- Verzia vyvinutá pre výsadkové jednotky. Použitý bol odľahčený podvozok bez odpruženia, kolesá boli zmenšené a štít bol väčšinou odmontovaný. Výsledná hmotnosť bola 139

2,8-cm-sPzB 41 (2,8cm protitankový kanón) - 2,8 cm sPzB 41

2,8 cm sPzB 41
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#223910 Version : 0

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2,8 cm schwere Panzerbüsche 41


Ráže: 28/20 mm
Úsťová rychlost: 1400 m/sek
Délka: 2580 mm
Délka hlavně: 1714 mm
Hmotnost na těžké kovové lafetě: 223 kg
Hmotnost na lehké kovové lafetě: 118 kg
Účinný dostřel: 1000 m


Střelivo:
- trhavý granát Sprg. 41 o hmotnosti 2,8 kg
- průbojný granát Pzgr. 41 o hmotnosti 2,8 kg


Vyrobeno: cca 150 ks
Výrobce: Mauserwerke, Oberndorf am Neckar


Cena: 4500 RM
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#60655 Version : 0

This post has not been translated to English yet. Please use the TRANSLATE button above to see machine translation of this post.

PzB 41:
2,8-cm-sPzB 41 (2,8cm protitankový kanón) -


2,8-cm-sPzB 41 (2,8cm protitankový kanón) -


URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#127596 Version : 0

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Canadian War Museum, Ontario, Ottawa
Foto Wozi via Dolin
2,8-cm-sPzB 41 (2,8cm protitankový kanón) -


URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#218716 Version : 0
2.8 cm PzB 41
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Municia pre 2,8 cm PzB 41 
28x187R

Municia pre 2,8 cm PzB 41
28x187R

2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Kdesi daleko na vychode

Kdesi daleko na vychode
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#221193 Version : 0
A few more photos of this remarkable weapon.


Source
http://www.answers.com/topic/2-8-cm-spzb-41
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Ammunition: AP shell (left) and fragmentation shell (right).

Ammunition: AP shell (left) and fragmentation shell (right).
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - sPzB 41 captured by the British Army, 1942.

sPzB 41 captured by the British Army, 1942.
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - A British soldier examines a captured sPzB 41 anti-tank gun, Sicily, 1943.

A British soldier examines a captured sPzB 41 anti-tank gun, Sicily, 1943.
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#223795 Version : 0

This post has not been translated to English yet. Please use the TRANSLATE button above to see machine translation of this post.

Za zmienku určite stojí fakt, že na zbraniach s princípom Gierlich alebo G-Ultra sa pracovalo od roku 1936 aj v Československu. Zbrojovka Janeček vyvinula prinajmenšom do prototypového štádia zbrane kalibru 11/15mm a pracovalo sa zrejme aj na zbrani kalibru 7,92mm a 20mm.
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#227375 Version : 0

This post has not been translated to English yet. Please use the TRANSLATE button above to see machine translation of this post.

Hmotnosť nábojov:
2,8 cm Pzgr. Patr. 41 -- 626g
2,8 cm Sprgr. Patr. 41 -- 582g
Dlžka náboja 221 mm, dĺžka nábojnice 190 mm.
Náboje boli balené v uzatvárateľnom plechovom obale po 12 kusov, každý náboj ešte v kartónovej trubici.
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - Stránka zo sovietskeho predpisu/pomôcky Trofejné náboje nemeckého delostrelectva z roku 1943

Stránka zo sovietskeho predpisu/pomôcky Trofejné náboje nemeckého delostrelectva z roku 1943
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#227376 Version : 0
In archíve som našiel photos priebojnej strelas.
Strela is poškodená, predná part of mäkkého metal (horčíkovej, possibly zinkovej zliatiny) is almost the entire skorodovaná, strela he comes probably from the finding of the nevystrelenej munície..
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - strela náboja 2,8 cm Pzgr. Patr. 41

strela náboja 2,8 cm Pzgr. Patr. 41
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - strela náboja 2,8 cm Pzgr. Patr. 41

strela náboja 2,8 cm Pzgr. Patr. 41
2,8-cm-sPzB 41 (2,8cm protitankový kanón) - strela náboja 2,8 cm Pzgr. Patr. 41

strela náboja 2,8 cm Pzgr. Patr. 41
URL : https://www.valka.cz/2-8-cm-sPzB-41-2-8cm-protitankovy-kanon-t16313#227377 Version : 0
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