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2 cm Flak 30, Flak 38 and Flakvierling 38

The Flak 30 (Flugzeugabwehrkanone 30) and improved Flak 38 were 20 mm anti-aircraft guns used by various German forces throughout World War II. It was not only the primary German light anti-aircraft gun but by far the most numerously produced German artillery piece throughout the war.[1] It was produced in a variety of models, notably the Flakvierling 38 which combined four Flak 38 autocannons onto a single carriage.

2 cm Flak 30/38
2cm Flak 30 in travel configuration at Saumur
TypeAnti-aircraft gun
Place of originNazi Germany
Service history
In serviceApril 1934–1945
Used bySee Users
WarsWorld War II
Production history
ManufacturerRheinmetall-Borsig
Mauser
Ostmarkwerk
Unit cost3500 Reichsmark
Produced1934–1945
No. builtmore than 144,000[1]
(Flakvierling count per barrel)
Flak 30: 8,000+
Flak 38: 40,000+
Variants2 cm Flak 38, Gebirgsflak 38, Flakvierling 38
Specifications
MassFlak 30: 450 kg (990 lb)
Flak 38: 405 kg (893 lb)
Length4.08 m (13 ft 5 in)
Barrel length1.3 m (4 ft 3 in) L/65
Width1.81 m (5 ft 11 in)
Height1.6 m (5 ft 3 in)
Crew5

Shell20×138mmB
Caliber20 mm (.79 in)
Elevation-12°to ±90°
Traverse360°
Rate of fireFlak 30: 280 rpm (cyclic)/120 rpm (practical)
Flak 38: 450 rpm (cyclic)/180 rpm (practical)
Muzzle velocity900 m/s (2,953 ft/s)
Effective firing range2,200 m (2,406 yds) (anti-aircraft)
Maximum firing range5,783 m (5,230 yds) (ground range)
Feed system20 round box magazine

Development

The Germans fielded the unrelated early 2 cm Flak 28 just after World War I, but the Treaty of Versailles outlawed these weapons and they were sold to Switzerland.

The original Flak 30 design was developed from the Solothurn ST-5 as a project for the Kriegsmarine, which produced the 20 mm C/30. The gun fired the "Long Solothurn", a 20 × 138 mm belted cartridge that had been developed for the ST-5 and was one of the more powerful 20  mm rounds.[2]

The C/30, featuring a barrel length of 65 calibres, had a fire rate of about 120 rounds per minute. Disappointingly, it proved to have feeding problems and would often jam, which was offset to some degree by its undersized 20 round-magazine which tended to make reloading a frequent necessity. Nevertheless, the C/30 became the primary shipborne light AA weapon and equipped a large variety of German ships. The MG C/30L variant was also used experimentally as an aircraft weapon, notably on the Heinkel He 112, where its high power allowed it to penetrate armoured cars and the light tanks of the era during the Spanish Civil War.

Rheinmetall then started an adaptation of the C/30 for Army use, producing the 2 cm Flak 30. Generally similar to the C/30, the main areas of development were the mount, which was fairly compact.

Set-up could be accomplished by dropping the gun off its two-wheeled trailer, "Sonderanhänger 51" (trailer 51) and levelling the gun using hand cranks. The result was a triangular base that permitted fire in all directions.

But the main problem with the design remained unsolved. The rate of fire of 120 RPM (rounds per minute) was not particularly fast for a weapon of this calibre. Rheinmetall[N 1] responded with the 2 cm Flak 38, which was otherwise similar but increased the rate of fire by 220 RPM and slightly lowered overall weight to 420 kg. The Flak 38 was accepted as the standard Army gun in 1939, and by the Kriegsmarine as the C/38.

In order to provide airborne and mountain troops with an AA capability, Mauser was contracted to produce a lighter version of the Flak 38, which they introduced as the 2 cm Gebirgsflak 38 (2 cm GebFlak 38). It featured a dramatically simplified mount using a tripod that raised the entire gun off the ground, with the additional benefit of allowing the weapon to be set up on an uneven surface. These changes reduced the overall weight of the gun to 276.0 kg. Production started in 1941 and it entered service in 1942.

Ammunition

A range of 20x138B ammunition was manufactured for 2 cm Flak weapons, the more commonly used types are listed on the following table.[3] Other types included practice rounds (marked Übung or Üb. in German notation) and a number of different AP types including a high-velocity PzGr 40 round with a tungsten carbide core in an aluminium body.

 
Flak 30 in travel configuration, Seine-et-Oise, France, August 1944
 
Flak 30 on the Eastern Front
 
Flak 38 on a vehicle, possibly an Sd.Kfz. 11/1, Russia June 1943.
German designation US Abbreviation Projectile weight [g] Bursting charge Muzzle velocity [m/s] Description
Sprenggranatpatrone L'spur mit Zerleger HEF-T 115 6,2 - 6,4 g HE (PETN + wax) 888 m/s Nose fuzed tracer round, self-destruct after 5.5 - 6.5 seconds (2000m range) due to tracer burn-through.
Sprenggranatpatrone L'spur W mit Zerleger HEF-T 120 6,2 - 6,4 g HE (PETN + wax) ? Boat-tailed HE-Frag. nose fuzed tracer round with heat transfer. Self-destruct after 5.5 - 6.5 seconds (2000m range) due to tracer burn-through.
Sprenggranatpatrone 39 Erd HEF 132 11 g HE (PETN + wax) 995 m/s HE-Frag. round with nose fuze, no tracer. Exclusively against ground targets.
Brandsprenggranatpatrone L'spur (Flak) mit Zerleger HEI-T 120-122 2,4 g HE (PETN) +
4.1 g (Aluminium)
900 m/s Nose fuze, tracer, with self-destruct after 5.5 - 6.5 seconds (2000m range) due to tracer burn-through.
Brandsprenggranatpatrone ohne L'spur (Flak) mit Zerleger HEI 117-120 22 g total
20 g HE Hexogen 5 (RDX)
+ (Zinc) powder + wax
900 m/s Boat-tailed nose fuzed HEI round, no tracer, self-destruct after 5.5 - 8 seconds flight (2000-2800m range). Lack of tracer and high density of incendiary allows heavy filling load.
Bransprenggranatpatrone L'spur W mit Zerleger HEFI-T 119-120 6,6 - 6,8 g HE (PETN) + (Aluminium) + wax 900 m/s Boat-tailed nose fuzed HE-Frag. incendiary tracer round with heat transfer. Self-destruct after at 2000m range due to tracer burn-through.
Brandsprenggranatpatrone vk. L'spur mit Zerleger HEI-T 116 19 g HE Hexogen 5 (RDX) + (Aluminium) or (Zinc) powder + wax ? Boat-tailed nose fuzed HEI tracer round. Self-destruct after 6 second (2200-2400m range) due to tracer burn-through.
Brandsprenggranatpatrone vk. L'spur W mit Zerleger HEI-T 116 19 g HE Hexogen 5 (RDX) + (Aluminium) or (Zinc) powder + wax ? Boat-tailed nose fuzed HEI tracer round with heat transfer. Self-destruct after 5.5 second (2000m range) due to tracer burn-through.
Brandsprenggranatpatrone mit Zerleger? HEI 100 ? g HE ? +
 ? g incendiary (WP)
1050 m/s Nose fuze, no tracer, with self-destruct?
Brandsprenggranatpatrone L'spur mit Zerleger? HEI-T 100 ? g HE ? +
 ? g incendiary (WP)
1050 m/s Nose fuze, tracer, with self-destruct? after ? second (?m range) due to tracer burn-through.
Minengeschosspatrone X L'spur mit Zerleger HEI-T (M) 109 24,5 - 25 g HE HA 41 (RDX + (Aluminium) powder + wax) 950 Boat-tailed nose fuzed HE Mine-shell tracer round, self-destruct.
Panzergranatpatrone L'spur mit Zerleger AP-T 146-148 2,4 g (PETN) +
 ? g (WP)
830 m/s Base-fuzed tracer round, with self-destruct due to tracer burn-through after 4.5 second flight (1800m range).
Panzergranatpatrone L'spur mit Zerleger AP-T 159 2,5 g (PETN) +
 ? g (WP)
? Boat-tailed base-fuzed tracer round, with self-destruct after 2 second flight (1000m range).
Panzergranatpatrone 39 AP 148 w/o filling 780 m/s No fuze, no tracer or self-destruct function.
Panzergranatpatrone 40 L'spur APIHC-T
APICR-T
HVAPI-T
100-101 Light metal shell,
special steel core
1050 m/s Tungsten carbide core. Tracer round, with no fuze or self-destruct function. Tracer burn-through after 0,9 - 1.5 second flight (600m range).
Penetrating effect with incendiary effect due to melting of light metal tip.
Panzerbrandgranatpatrone (Phosphor) L'spur ohne Zerleger API-T 148 3,0 g incendiary (WP) 780 m/s Tracer round, with no fuze or self-destruct function. Tracer burn-through after 1,8 second flight (1000m range).
Panzergranatpatrone L'spur ohne Zerleger AP-T 143 w/o filling 800 m/s Tracer round, with no fuze or self-destruct function. Tracer burn-through after 1,8 second flight (1000m range).
Panzersprenggranatpatrone L'spur ohne Zerleger APHE-T 121 3,6 g HE (PETN) 900 m/s Base-fuzed tracer round, no self-destruct.
Panzersprenggranatpatrone L'spur mit Zerleger (Kriegsmarine)(Luftwaffe) APHE-T 121 3,6 g HE (PETN) 900 m/s Base-fuzed tracer round, self-destruct after 2 second flight (1000m range) or 4.3 - 4.6 seconds flight (1800m range) due to tracer burn-through.

2 cm Flakvierling 38

2 cm Flakvierling 38
 
Members of the Panzer-Grenadier-Division Großdeutschland train with a 2,0cm Flakvierling 38 (1943)
TypeAnti-aircraft gun
Place of originNazi Germany
Service history
In serviceMarch 1940–1945
Used byNazi Germany
WarsWorld War II
Production history
DesignerMauser
Designed1940
ManufacturerMauser
Rheinmetall
Ostmarkwerk
Produced1940–1945
No. built3,768
Specifications
Mass1,509 kg (3,327 lbs) with trailer
Length4.08 m (13 ft 5 in)
Barrel length1.3 m (4 ft 3 in) L/65
Width1.81 m (5 ft 11 in)
Height1.6 m (5 ft 3 in)
Crew8

Shell20×138mmB
Caliber2,0cm (.78 in)
ActionRecoil operation[4]
BreechRotating bolt
CarriageSd.Ah 52 (Special Trailer 52)
Elevation- 10° - +100°
Traverse360°
Rate of fire1,800 rpm (Cyclic)
800 rpm (Practical)
Muzzle velocity900 m/s (2,953 ft/s)
Effective firing range2,200 m (2,406 yds) (anti-aircraft)
Maximum firing range5,783 m (5,230 yds) (ground range)
Feed system4x 20 round box magazines

Even as the Flak 30 was entering service, the Luftwaffe and Heer (army) branches of the Wehrmacht had doubts about its effectiveness, given the ever-increasing speeds of low-altitude fighter-bombers and attack aircraft. The Army in particular felt the proper solution was the introduction of the 37 mm calibre weapons they had been developing since the 1920s, which had a rate of fire about the same as the Flak 38 but fired a round with almost eight times the weight. This not only made the rounds deadlier on impact, but their higher energy and ballistic coefficient allowed them to travel much longer distances, allowing the gun to engage targets at longer ranges. This meant it could keep enemy aircraft under fire over longer time spans.

The 20 mm weapons had always had weak development perspectives, often being reconfigured or redesigned just enough to allow the weapons to find a use. Indeed, it came as a surprise when Rheinmetall introduced the 2 cm Flakvierling 38, which improved the weapon just enough to make it competitive again. The term Vierling literally translates to "quadruplet" and refers to the four 20 mm autocannon constituting the design.

The Flakvierling weapon consisted of quad-mounted 2 cm Flak 38 AA guns with collapsing seats, folding handles, and ammunition racks. The mount had a triangular base with a jack at each leg for levelling the gun. The tracker traversed and elevated the mount manually using two handwheels. When raised, the weapon measured 307 cm (10 feet 1 inch) high.

Each of the four guns had a separate magazine that held only 20 rounds. This meant that a maximum combined rate of fire of 1,400 rounds per minute was reduced practically to 800 rounds per minute for combat use – which would still require that an emptied magazine be replaced every six seconds, on each of the four guns. This is the attainable rate of fire; the sustained rate of fire is significantly lower due to heat buildup and barrel erosion. Automatic weapons are typically limited to roughly 100 rounds per minute per barrel to give time for the heat to dissipate, although this can be exceeded for short periods if the firing window is brief.

The gun was fired by two pedals — each of which fired two diametrically opposite barrels — in either semi-automatic or automatic mode. The effective vertical range was 2,200 metres. It was also used just as effectively against ground targets as it was against low-flying aircraft.[5]

Mounting versatility

 
The rear-location wheelhouse of this Siebel ferry features a Flakvierling quadmount AA battery to defend it in 1943 Yugoslavia.

The Flakvierling four-autocannon anti-aircraft ordnance system, when not mounted into any self-propelled mount, was normally transported Sd. Ah. 52 trailer, and could be towed behind a variety of half-tracks or trucks, such as the Opel Blitz and the armoured Sd.Kfz. 251 and unarmored Sd.Kfz. 7/1 and Sd.Kfz. 11 artillery-towing half-track vehicles. Its versatility concerning the vehicles it could be mounted to included its use even on tank hulls to produce fully armoured mobile anti-aircraft vehicles, such as the Panzer IV-based low-production Wirbelwind and original Möbelwagen prototype-design, anti-aircraft tanks. In Kriegsmarine use, it was fitted to U-boats, Siebel ferries and ships to provide short-range anti-aircraft defence, and was also employed in fixed installations around ports, harbours and other strategic naval targets. The Flakvierling was also a common fixture on trains, even on Hitler's own command train, where pairs of them were mounted on either end of a "camelback" flatbed car and then covered to make it look like a boxcar, sometimes with a pair of such twin-Flakvierling mount cars for defence, one near each end of Hitler's Führersonderzug train.

Users

  •   Germany
  •   Lithuania 150 Flak 30 (20 mm lėktuvinis automatinis pabūklas LAP) bought in 1939.
  •   Finland 50 Flak 30 (named 20 Itk/30 BSW) delivered from Germany in 1939. 113 Flak 38 (named 20 ItK/38 BSW) guns bought during the Continuation War.
  •   Greece 108 total in service
  •   Romania 300 ordered in September 1940, the delivery beginning in May 1941, known as Gustloff guns (after one of their manufacturers)[6]
  •   Denmark 69 in service from 1945 to 1955 in The Royal Danish Navy, where it was known as 20 mm Mk M/39 LvSa, mounted on minesweepers of the SØLØVE class and motor torpedo boats of the GLENTEN class.
  •   Sweden 56 Flak 30 bought in 1939, designated 20 mm lvakan m/39 in Swedish service.

See also

Similar

  • M45 Quadmount, the closest Allied equivalent to the Flakvierling system

Notes

  1. ^ The original source articles used to produce this single combined version state different companies for the manufacture of the various models. It suggested that Mauser produced all of the Flak 38 and later variants.

References

  1. ^ a b . Archived from the original on 14 June 2011. Retrieved 30 July 2011.
  2. ^ An introduction to collecting 20 mm cannon cartridges
  3. ^ 20mm Suomessa - Aseet ja ampumatarvikkeet (20mm in Finland - Weapons and Ammunition). Pitkänen S., Simpanen T, 2007. ISBN 978-952-5026-59-7.
  4. ^ TM E 9-9228 Technical Manual Enemy (German) 2CM Flakvierling 38 (German 20-MM Antiaircraft Gun, Four-Barreled Mount) 1943
  5. ^ The Encyclopedia of Weapons of World War 2
  6. ^ Mark Axworthy, London: Arms and Armour, 1995, Third Axis, Fourth Ally: Romanian Armed Forces in the European War, 1941–1945, p. 30

Bibliography

  • Gander, Terry and Chamberlain, Peter. Weapons of the Third Reich: An Encyclopedic Survey of All Small Arms, Artillery and Special Weapons of the German Land Forces 1939-1945. New York: Doubleday, 1979 ISBN 0-385-15090-3
  • Hogg, Ian V. German Artillery of World War Two. 2nd corrected edition. Mechanicsville, PA: Stackpole Books, 1997 ISBN 1-85367-480-X

External links

  • Images and models of the 2 cm FlaK at Pinterest
  • Image of the 2 cm FlaK 38 Anti Aircraft Gun in Desert camouflage at the Australian war memorial page

flak, flak, flakvierling, confused, with, flak, flak, flugzeugabwehrkanone, improved, flak, were, anti, aircraft, guns, used, various, german, forces, throughout, world, only, primary, german, light, anti, aircraft, most, numerously, produced, german, artiller. Not to be confused with 10 5 cm FlaK 38 The Flak 30 Flugzeugabwehrkanone 30 and improved Flak 38 were 20 mm anti aircraft guns used by various German forces throughout World War II It was not only the primary German light anti aircraft gun but by far the most numerously produced German artillery piece throughout the war 1 It was produced in a variety of models notably the Flakvierling 38 which combined four Flak 38 autocannons onto a single carriage 2 cm Flak 30 382cm Flak 30 in travel configuration at SaumurTypeAnti aircraft gunPlace of originNazi GermanyService historyIn serviceApril 1934 1945Used bySee UsersWarsWorld War IIProduction historyManufacturerRheinmetall BorsigMauserOstmarkwerkUnit cost3500 ReichsmarkProduced1934 1945No builtmore than 144 000 1 Flakvierling count per barrel Flak 30 8 000 Flak 38 40 000 Variants2 cm Flak 38 Gebirgsflak 38 Flakvierling 38SpecificationsMassFlak 30 450 kg 990 lb Flak 38 405 kg 893 lb Length4 08 m 13 ft 5 in Barrel length1 3 m 4 ft 3 in L 65Width1 81 m 5 ft 11 in Height1 6 m 5 ft 3 in Crew5Shell20 138mmBCaliber20 mm 79 in Elevation 12 to 90 Traverse360 Rate of fireFlak 30 280 rpm cyclic 120 rpm practical Flak 38 450 rpm cyclic 180 rpm practical Muzzle velocity900 m s 2 953 ft s Effective firing range2 200 m 2 406 yds anti aircraft Maximum firing range5 783 m 5 230 yds ground range Feed system20 round box magazine Contents 1 Development 2 Ammunition 3 2 cm Flakvierling 38 3 1 Mounting versatility 4 Users 5 See also 6 Similar 7 Notes 8 References 9 Bibliography 10 External linksDevelopment EditThe Germans fielded the unrelated early 2 cm Flak 28 just after World War I but the Treaty of Versailles outlawed these weapons and they were sold to Switzerland The original Flak 30 design was developed from the Solothurn ST 5 as a project for the Kriegsmarine which produced the 20 mm C 30 The gun fired the Long Solothurn a 20 138 mm belted cartridge that had been developed for the ST 5 and was one of the more powerful 20 mm rounds 2 The C 30 featuring a barrel length of 65 calibres had a fire rate of about 120 rounds per minute Disappointingly it proved to have feeding problems and would often jam which was offset to some degree by its undersized 20 round magazine which tended to make reloading a frequent necessity Nevertheless the C 30 became the primary shipborne light AA weapon and equipped a large variety of German ships The MG C 30L variant was also used experimentally as an aircraft weapon notably on the Heinkel He 112 where its high power allowed it to penetrate armoured cars and the light tanks of the era during the Spanish Civil War Rheinmetall then started an adaptation of the C 30 for Army use producing the 2 cm Flak 30 Generally similar to the C 30 the main areas of development were the mount which was fairly compact Set up could be accomplished by dropping the gun off its two wheeled trailer Sonderanhanger 51 trailer 51 and levelling the gun using hand cranks The result was a triangular base that permitted fire in all directions But the main problem with the design remained unsolved The rate of fire of 120 RPM rounds per minute was not particularly fast for a weapon of this calibre Rheinmetall N 1 responded with the 2 cm Flak 38 which was otherwise similar but increased the rate of fire by 220 RPM and slightly lowered overall weight to 420 kg The Flak 38 was accepted as the standard Army gun in 1939 and by the Kriegsmarine as the C 38 In order to provide airborne and mountain troops with an AA capability Mauser was contracted to produce a lighter version of the Flak 38 which they introduced as the 2 cm Gebirgsflak 38 2 cm GebFlak 38 It featured a dramatically simplified mount using a tripod that raised the entire gun off the ground with the additional benefit of allowing the weapon to be set up on an uneven surface These changes reduced the overall weight of the gun to 276 0 kg Production started in 1941 and it entered service in 1942 Ammunition EditA range of 20x138B ammunition was manufactured for 2 cm Flak weapons the more commonly used types are listed on the following table 3 Other types included practice rounds marked Ubung or Ub in German notation and a number of different AP types including a high velocity PzGr 40 round with a tungsten carbide core in an aluminium body Flak 30 in travel configuration Seine et Oise France August 1944 Flak 30 on the Eastern Front Flak 38 on a vehicle possibly an Sd Kfz 11 1 Russia June 1943 German designation US Abbreviation Projectile weight g Bursting charge Muzzle velocity m s DescriptionSprenggranatpatrone L spur mit Zerleger HEF T 115 6 2 6 4 g HE PETN wax 888 m s Nose fuzed tracer round self destruct after 5 5 6 5 seconds 2000m range due to tracer burn through Sprenggranatpatrone L spur W mit Zerleger HEF T 120 6 2 6 4 g HE PETN wax Boat tailed HE Frag nose fuzed tracer round with heat transfer Self destruct after 5 5 6 5 seconds 2000m range due to tracer burn through Sprenggranatpatrone 39 Erd HEF 132 11 g HE PETN wax 995 m s HE Frag round with nose fuze no tracer Exclusively against ground targets Brandsprenggranatpatrone L spur Flak mit Zerleger HEI T 120 122 2 4 g HE PETN 4 1 g Aluminium 900 m s Nose fuze tracer with self destruct after 5 5 6 5 seconds 2000m range due to tracer burn through Brandsprenggranatpatrone ohne L spur Flak mit Zerleger HEI 117 120 22 g total 20 g HE Hexogen 5 RDX Zinc powder wax 900 m s Boat tailed nose fuzed HEI round no tracer self destruct after 5 5 8 seconds flight 2000 2800m range Lack of tracer and high density of incendiary allows heavy filling load Bransprenggranatpatrone L spur W mit Zerleger HEFI T 119 120 6 6 6 8 g HE PETN Aluminium wax 900 m s Boat tailed nose fuzed HE Frag incendiary tracer round with heat transfer Self destruct after at 2000m range due to tracer burn through Brandsprenggranatpatrone vk L spur mit Zerleger HEI T 116 19 g HE Hexogen 5 RDX Aluminium or Zinc powder wax Boat tailed nose fuzed HEI tracer round Self destruct after 6 second 2200 2400m range due to tracer burn through Brandsprenggranatpatrone vk L spur W mit Zerleger HEI T 116 19 g HE Hexogen 5 RDX Aluminium or Zinc powder wax Boat tailed nose fuzed HEI tracer round with heat transfer Self destruct after 5 5 second 2000m range due to tracer burn through Brandsprenggranatpatrone mit Zerleger HEI 100 g HE g incendiary WP 1050 m s Nose fuze no tracer with self destruct Brandsprenggranatpatrone L spur mit Zerleger HEI T 100 g HE g incendiary WP 1050 m s Nose fuze tracer with self destruct after second m range due to tracer burn through Minengeschosspatrone X L spur mit Zerleger HEI T M 109 24 5 25 g HE HA 41 RDX Aluminium powder wax 950 Boat tailed nose fuzed HE Mine shell tracer round self destruct Panzergranatpatrone L spur mit Zerleger AP T 146 148 2 4 g PETN g WP 830 m s Base fuzed tracer round with self destruct due to tracer burn through after 4 5 second flight 1800m range Panzergranatpatrone L spur mit Zerleger AP T 159 2 5 g PETN g WP Boat tailed base fuzed tracer round with self destruct after 2 second flight 1000m range Panzergranatpatrone 39 AP 148 w o filling 780 m s No fuze no tracer or self destruct function Panzergranatpatrone 40 L spur APIHC T APICR T HVAPI T 100 101 Light metal shell special steel core 1050 m s Tungsten carbide core Tracer round with no fuze or self destruct function Tracer burn through after 0 9 1 5 second flight 600m range Penetrating effect with incendiary effect due to melting of light metal tip Panzerbrandgranatpatrone Phosphor L spur ohne Zerleger API T 148 3 0 g incendiary WP 780 m s Tracer round with no fuze or self destruct function Tracer burn through after 1 8 second flight 1000m range Panzergranatpatrone L spur ohne Zerleger AP T 143 w o filling 800 m s Tracer round with no fuze or self destruct function Tracer burn through after 1 8 second flight 1000m range Panzersprenggranatpatrone L spur ohne Zerleger APHE T 121 3 6 g HE PETN 900 m s Base fuzed tracer round no self destruct Panzersprenggranatpatrone L spur mit Zerleger Kriegsmarine Luftwaffe APHE T 121 3 6 g HE PETN 900 m s Base fuzed tracer round self destruct after 2 second flight 1000m range or 4 3 4 6 seconds flight 1800m range due to tracer burn through 2 cm Flakvierling 38 Edit2 cm Flakvierling 38 Members of the Panzer Grenadier Division Grossdeutschland train with a 2 0cm Flakvierling 38 1943 TypeAnti aircraft gunPlace of originNazi GermanyService historyIn serviceMarch 1940 1945Used byNazi GermanyWarsWorld War IIProduction historyDesignerMauserDesigned1940ManufacturerMauserRheinmetallOstmarkwerkProduced1940 1945No built3 768SpecificationsMass1 509 kg 3 327 lbs with trailerLength4 08 m 13 ft 5 in Barrel length1 3 m 4 ft 3 in L 65Width1 81 m 5 ft 11 in Height1 6 m 5 ft 3 in Crew8Shell20 138mmBCaliber2 0cm 78 in ActionRecoil operation 4 BreechRotating boltCarriageSd Ah 52 Special Trailer 52 Elevation 10 100 Traverse360 Rate of fire1 800 rpm Cyclic 800 rpm Practical Muzzle velocity900 m s 2 953 ft s Effective firing range2 200 m 2 406 yds anti aircraft Maximum firing range5 783 m 5 230 yds ground range Feed system4x 20 round box magazinesEven as the Flak 30 was entering service the Luftwaffe and Heer army branches of the Wehrmacht had doubts about its effectiveness given the ever increasing speeds of low altitude fighter bombers and attack aircraft The Army in particular felt the proper solution was the introduction of the 37 mm calibre weapons they had been developing since the 1920s which had a rate of fire about the same as the Flak 38 but fired a round with almost eight times the weight This not only made the rounds deadlier on impact but their higher energy and ballistic coefficient allowed them to travel much longer distances allowing the gun to engage targets at longer ranges This meant it could keep enemy aircraft under fire over longer time spans The 20 mm weapons had always had weak development perspectives often being reconfigured or redesigned just enough to allow the weapons to find a use Indeed it came as a surprise when Rheinmetall introduced the 2 cm Flakvierling 38 which improved the weapon just enough to make it competitive again The term Vierling literally translates to quadruplet and refers to the four 20 mm autocannon constituting the design The Flakvierling weapon consisted of quad mounted 2 cm Flak 38 AA guns with collapsing seats folding handles and ammunition racks The mount had a triangular base with a jack at each leg for levelling the gun The tracker traversed and elevated the mount manually using two handwheels When raised the weapon measured 307 cm 10 feet 1 inch high Each of the four guns had a separate magazine that held only 20 rounds This meant that a maximum combined rate of fire of 1 400 rounds per minute was reduced practically to 800 rounds per minute for combat use which would still require that an emptied magazine be replaced every six seconds on each of the four guns This is the attainable rate of fire the sustained rate of fire is significantly lower due to heat buildup and barrel erosion Automatic weapons are typically limited to roughly 100 rounds per minute per barrel to give time for the heat to dissipate although this can be exceeded for short periods if the firing window is brief The gun was fired by two pedals each of which fired two diametrically opposite barrels in either semi automatic or automatic mode The effective vertical range was 2 200 metres It was also used just as effectively against ground targets as it was against low flying aircraft 5 Mounting versatility Edit The rear location wheelhouse of this Siebel ferry features a Flakvierling quadmount AA battery to defend it in 1943 Yugoslavia The Flakvierling four autocannon anti aircraft ordnance system when not mounted into any self propelled mount was normally transported Sd Ah 52 trailer and could be towed behind a variety of half tracks or trucks such as the Opel Blitz and the armoured Sd Kfz 251 and unarmored Sd Kfz 7 1 and Sd Kfz 11 artillery towing half track vehicles Its versatility concerning the vehicles it could be mounted to included its use even on tank hulls to produce fully armoured mobile anti aircraft vehicles such as the Panzer IV based low production Wirbelwind and original Mobelwagen prototype design anti aircraft tanks In Kriegsmarine use it was fitted to U boats Siebel ferries and ships to provide short range anti aircraft defence and was also employed in fixed installations around ports harbours and other strategic naval targets The Flakvierling was also a common fixture on trains even on Hitler s own command train where pairs of them were mounted on either end of a camelback flatbed car and then covered to make it look like a boxcar sometimes with a pair of such twin Flakvierling mount cars for defence one near each end of Hitler s Fuhrersonderzug train Users Edit Germany Lithuania 150 Flak 30 20 mm lektuvinis automatinis pabuklas LAP bought in 1939 Finland 50 Flak 30 named 20 Itk 30 BSW delivered from Germany in 1939 113 Flak 38 named 20 ItK 38 BSW guns bought during the Continuation War Greece 108 total in service Romania 300 ordered in September 1940 the delivery beginning in May 1941 known as Gustloff guns after one of their manufacturers 6 Denmark 69 in service from 1945 to 1955 in The Royal Danish Navy where it was known as 20 mm Mk M 39 LvSa mounted on minesweepers of the SOLOVE class and motor torpedo boats of the GLENTEN class Sweden 56 Flak 30 bought in 1939 designated 20 mm lvakan m 39 in Swedish service See also EditList of anti aircraft guns List of artillery of Germany MG 151 cannon German 20mm aircraft cannon developed during World War II MG FF cannon German 20mm aircraft cannon during early World War II Developed from the Swiss Oerlikon FF 2 cm KwK 30 variant for armored cars and light tanks slightly shortened barrel 20 mm Polsten Equivalent British 20mm anti aircraft gun developed from a Polish design which was in turn derived from a version of the Swiss Oerlikon The blueprints were brought to Britain by its creators after Invasion of Poland Breda Model 35 Equivalent Italian 20mm anti aircraft gun Hispano Suiza HS 404 Equivalent French designed 20mm anti aircraft gun used by many countries during World War II also used to arm various aircraft Type 98 20 mm AA machine cannon Japanese 20mm anti aircraft gun during World War II Type 2 20 mm AA machine cannon Japanese 20mm anti aircraft gun derived from the German Flak 38 during World War II supplementing the earlier Type 98 Similar EditM45 Quadmount the closest Allied equivalent to the Flakvierling systemNotes Edit The original source articles used to produce this single combined version state different companies for the manufacture of the various models It suggested that Mauser produced all of the Flak 38 and later variants References Edit a b German Weapon and Ammunition Production Archived from the original on 14 June 2011 Retrieved 30 July 2011 An introduction to collecting 20 mm cannon cartridges 20mm Suomessa Aseet ja ampumatarvikkeet 20mm in Finland Weapons and Ammunition Pitkanen S Simpanen T 2007 ISBN 978 952 5026 59 7 TM E 9 9228 Technical Manual Enemy German 2CM Flakvierling 38 German 20 MM Antiaircraft Gun Four Barreled Mount 1943 The Encyclopedia of Weapons of World War 2 Mark Axworthy London Arms and Armour 1995 Third Axis Fourth Ally Romanian Armed Forces in the European War 1941 1945 p 30Bibliography EditGander Terry and Chamberlain Peter Weapons of the Third Reich An Encyclopedic Survey of All Small Arms Artillery and Special Weapons of the German Land Forces 1939 1945 New York Doubleday 1979 ISBN 0 385 15090 3 Hogg Ian V German Artillery of World War Two 2nd corrected edition Mechanicsville PA Stackpole Books 1997 ISBN 1 85367 480 XExternal links Edit Wikimedia Commons has media related to 2 cm FlaK 30 38 Flakvierling Images and models of the 2 cm FlaK at Pinterest Image of the 2 cm FlaK 38 Anti Aircraft Gun in Desert camouflage at the Australian war memorial page Retrieved from https en wikipedia org w index php title 2 cm Flak 30 Flak 38 and Flakvierling 38 amp oldid 1122629376, wikipedia, wiki, book, books, library,

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