Nazi WWII Plan to Attack US With Sub Missiles

Nazi WWII Plan to Attack US With Sub Missiles

In the closing weeks of World War II in Europe, American intelligence determined that a detachment of German submarines had been dispatched to launch a cruise missile attack on the East Coast of the United States. The U.S. Navy deployed forty-six ships and dozens of aircraft to annihilate the incoming submarine wolf pack.

The Definitive Collection Of Secret Nazi Weapons

The Definitive Collection Of Secret Nazi Weapons

Underwater missiles that could have hit New York, jet-powered bombers that were nearly impossible to intercept, sub-orbital bombers, vertical launch rocket fighters, or infrared visors are just a few of many in this definitive collection of incredible Nazi weapons. Be happy that those bastards never got to mass produce them.

‘Big Bertha’ – The 42cm Mortar and Short Naval Cannon Battery 37

In 1913 Krupp produced a 42cm howitzer on a Radgürtel wheeled chassis under the code name ‘M-Gerät’. It had an 800kg shell, with 150kg of explosive filler, and a 9,300m range.

It was road-transportable in five sections, although each of the five pieces weighed between 16–21 metric tons (16,000–21,000kg). Each prime mover was 5m long, the entire vehicle 12m. In total the mortar weighed 70 metric tons (70,000kg). The mortar could be reassembled using a crane in four hours, but six to eight hours of hard work was necessary to prepare the entire mortar position. It is easy to see the mobility advantage possessed by the 21cm howitzer, which weighed about an eighth as much.

The availability of high-capacity mechanical prime movers was the prerequisite for the towed 42cm mortar. Even heavy draft horses were limited to loads of 6,000kg, and only for a limited time. In the absence of mechanical prime movers, heavy guns and mortars could only be moved by rail and fired from on or next to the tracks. The first experiments with mechanical prime movers were conducted in exercises at Metz in 1908.

Short Naval Cannon Battery 3 was pulled by requisitioned agricultural steam ploughs and locomotives. Although they weighed 2,000kg, they had never been designed as artillery prime movers and therefore were of limited tactical usefulness, as they could not pull such colossal loads for long distances. They also varied considerably in size and manufacturer. They required large quantities of coal and water and gave off clouds of black smoke. The crews were their usual farm drivers. Nevertheless, this field-expedient mobility for the 42cm was a resounding success. Due to Belgian demolitions the rail-mobile guns would never have got near Liège in time to affect the outcome of the battle.

All this made the choice of a firing position difficult. In addition, once the mortar was emplaced, the barrel could move left and right only as much as necessary to adjust fire. Shifting targets required a prime mover to haul the trail of the mortar around, necessitating an even larger gun position.

Ten to fifteen 900kg shells were brought forward on each rail wagon to be offloaded at a rail siding about 15km from the battery position, onto lorries, three to a vehicle. Unloaded near the gun position, each shell and powder charge were put onto a shell carrier and pushed by three men along a plank road to the gun position. They were hauled up to the loading tray by the ammunition crane on the mortar. The range was regulated in part by the size of the powder charge, in part by the elevation of the mortar

The first test-firing of two M-Gerät mortars took place at Krupp’s private firing range at Meppen in February 1914, followed by more test-firing at the artillery MTA at Kummersdorf. These required ‘certain improvements’ on the mortars. Mobility exercises were conducted using the steam agricultural tractors near the Krupp works at Essen. Large farms were given subsidies to have the tractors on hand when needed.

A total of four batteries with seven 42cm mortars were on hand in 1914: three rail batteries with five mortars and one battery with two wheel-mobile mortars.

The development of the mobile, fast-firing, highly accurate 21cm mortar, directed by FOs with telephones, led the German siege artillery to develop a new form of siege warfare, the verkürztes Verfahren, a hasty attack. Where normal siege doctrine required a laborious and methodical deployment and advance, in the verkürztes Verfahren the 21cm would rapidly occupy a defilade position, followed by an immediate, intense bombardment and, if necessary, quick assault by infantry and combat engineers. At Liège the Germans employed the verkürztes Verfahren, and not the conventional siege doctrine, with devastating effectiveness, and which caught the Belgians and French completely by surprise.

Liege 1914 – 15-cm Morser -The Destroyer of the Forts

21 cm Mörser 10.

In the 1913–14 war plan, the younger Moltke determined that Germany would concentrate the mass of her army – sixty-eight divisions – against France and only nine against Russia (with two reserve divisions watching the North Sea coast against a British landing). Unless the French attacked first, and in strength, in Lorraine, the main German attack would be made through Belgium north of the Meuse. Moltke could not risk having an intact Liège cutting the supply lines of the German 1st and 2nd Armies.

Heereskavalleriekorps 2 (HKK 2 – 2nd Cavalry Corps) would advance with 2 and 4 Kavalleriedivision (KD – Kavalleriedivision – cavalry division) to cross the Meuse north of Liège to take up a position north-east of the fortress and send patrols into Belgium. 9 KD would operate south of Liège.

To take Liège quickly, six brigades, that had not had time to mobilise and were still at peacetime strength (about 25,000 infantry, 124 field artillery pieces and four 21cm mortars) would conduct a quick attack on the night of the fourth to fifth mobilisation days in order to pass between the individual forts, before the Belgians had time to prepare field fortifications between them. The routes had been reconnoitred and established by German General Staff officers in peacetime, who were to act as guides in wartime. In almost all cases the routes followed a major road; little or no attempt was made to infiltrate cross-country. They would seize the city – which was not protected by a wall – and the individual forts would presumably see the futility of further resistance and surrender. 

‘Presumably’ because the only notes that still exist concerning the coup de main against Liège are in 1913–14 German deployment orders (1913–14 Aufmarschweisungen), which do not state why or how, if the forts did not surrender outright, that five brigades of infantry (six in 1914), supported by four 21cm mortars, were going to take twelve forts.

The only logical explanation is that Moltke was assuming that Liège would be completely unprepared to defend itself. Moltke apparently expected that in addition to the garrison of the forts, the Belgians would have the peacetime garrison of 6,000 men and 3,000 Garde Civique. Not only would there be no Belgian forces in the intervals between the forts, allowing the German brigades unopposed passage into the city proper, but that the forts too would be unready: best case, still in peacetime caretaker status, worst case without their complete garrison and store of munitions and supplies. Under such circumstances, one or two forts might be overrun or surrender and the rest of the forts would recognise the futility of further resistance. Moreover, it was no state secret that the Belgian 3 DA HQ was at Liège. The German attack had to be made before 3 DA was combat-ready.

The General Staff brochure, Liège-Namur, written in 1918, says that Ludendorff was responsible for ‘the concept and preparation of the attack’. Ludendorff says that the coup de main against Liège was his idea, with the caveat that, once inside the central city and in possession of the citadel it would be possible to easily reduce the individual forts. Ludendorff said that in 1914 he was assigned to the 2nd Army, which had the responsibility of conducting the operation, because of his knowledge of the Liège attack, which was otherwise a closely guarded General Staff secret.

In fact it seems likely that Ludendorff, who had no particular expertise in fortress warfare and was the chief of the Aufmarschabteilung (deployment section) of the General Staff, had no more responsibility for planning the attack than preparing the rail-march tables. Kabisch says that the detailed plan for conducting the attack was written by Brigadier General Schwarte and Section 4 (Western Fortresses) of the great General Staff. The plan was first developed in the 1908–09 Aufmarsch (deployment plan).

If the first attack failed, it would be repeated on the tenth day of mobilisation. If Liège had not fallen by the twelfth day of mobilisation, it would be necessary to transit Dutch territory at Maastricht.

The Liège Myth
Any history of the Battle of Liège attributes the fall of the fortress almost exclusively to the effect of the super-heavy German 42cm guns, an explanation that the Germans fostered themselves, since it emphasised the effectiveness of a German ‘wonder weapon,’ which would presumably demoralise the enemy. This is clearly the intent of the German official history Der Weltkrieg I, which emphasises the 42cm to the exclusion of the rest of the German siege artillery. The Belgians, Moranville in the lead, attributed the fall of Liège entirely to the German super-heavy artillery, which excused the rapid surrender of the Belgian forts. These monster guns continue to fascinate historians of the Marne campaign and their readers.

Barbara Tuchman’s Pulitzer Prize-winning The Guns of August combines ‘common knowledge’ with dramatic prose and is therefore the most popular book on the Marne campaign. She gives her imagination free rein: for example, according to Tuchman the Austrian Skoda 30.5cm mortars were employed at Liège (they weren’t), and the destruction of Liège was caused solely by super-heavy artillery; the German 21cm mortars are not mentioned.

John Keegan’s The First World War, an exceptionally popular and influential military history, repeats the Liège ‘common knowledge’ verbatim: according to Keegan, the destruction of the Liège forts was due solely to the German 42cm guns. Keegan dutifully footnotes his sole source concerning Liège, Christopher Duffy’s ‘The Liège Forts’ in Purnell’s History of the First World War, I, 131–8. This is a useful demonstration of how ‘common knowledge’ becomes entrenched. Purnell’s was a populist weekly magazine, first published in 1970, which had 128 issues. Each magazine was about thirty pages long and covered perhaps four different topics. Each article was heavily illustrated with drawings and photos: Duffy’s had four fully illustrated pages, two half-illustrated and only two of text. Duffy cited eight sources, only two of which had specific information about the siege of Liège. This is not a well-researched article, which would explain why the 21cm are mentioned once. For good measure, Duffy throws in the participation of the Austrian 30.5cm, which never fired at Liège. The strongest part of the article are drawings of the 30.5cm and 42cm. But the 42cm get credit for everything.

In fact, nine of the twelve Liège forts were destroyed by just thirty-two German 21cm mortars, exactly the gun calibre that Liège was designed to defeat. Only one fort, Loncin, fell to the 42cm gun fire – Pontisse had been wrecked by 21cm fire before the 42cm arrived – and even here the 42cm fire was supplemented by the fire of other weapons. The last two forts surrendered, one while under a short period of 21cm fire, the other while not under fire at all.

And Liège fell with dizzying speed. Fort Barchon was reduced on 8 August by the fire of six 21cm mortars, d’Evegnée on 11 August by four 21cm mortars in two days of bombardment. The mass of the siege artillery, almost exclusively 21cm mortars, arrived on 12 August. Three forts fell on 13 August, two on 14 August, three on 15 August and the remaining two on the morning of 16 August. The German siege artillery, and principally the four battalions (thirty-two guns total) of the hard-hitting, mobile 21cm mortar of FAR 4 and 9, had reduced Liège in less than four days.

Development of German Siege Artillery
Armies fight the way they have trained to fight. Behind the brilliant successes of the German heavy artillery at Liège, then Namur, Maubeuge and Antwerp, lay nearly twenty years’ worth of work in developing doctrine, equipment, and good, hard training, especially the live-fire shoots at the artillery MTA and the fortress General Staff exercises. Lombard reported that from the very start German artillery fire was ‘devastatingly accurate’.

By 1883 the German siege artillery faced the daunting prospect of massive French fortifications from Verdun to Belfort, and Antwerp, which led the Chief of the General Staff, Schlieffen, and the General Inspector of the Artillery, to develop the ‘Heavy Artillery of the Field Army’ (schwere Artillerie des Feldheeres), which would consist of a battalion of 15cm guns at the corps level and 21cm guns at the army level.

In 1902 the corps batteries began to receive the new 15cm schwere Feldhaubitze 02 (sFH 02). This was a revolutionary new design, with a recoil brake which kept the gun stable in position and allowed a far more accurate and higher rate of fire. The steel gun tube reduced weight and increased mobility. Maximum effective range went from 6,000m to 7,400m. A battery consisted of four guns and two munitions wagons, a battalion of four batteries and a light munitions column. The mission of the howitzers was to provide corps general support artillery, conducting counter-battery fire against field artillery equipped with armoured shields, and against dug-in infantry. It was not a siege weapon.

The German 21cm mortar in the 1890s was ‘extremely unwieldy’. In 1909 the army-level artillery received the new 21cm mortar, which also had a recoil brake, an armoured gun shield, weighed about 9000kg and fired a 100kg shell 9,400m. It was broken down to three pieces for movement. A particular innovation was the Radgürtel: a wheel with flexible rectangular wooden plates affixed. One plate was always in contact with the ground, and significantly reduced the ground pressure generated by firing the weapon, and therefore no longer required a special base plate. A battery included six OFF, thirty-five NCOs, 218 EM and 150 horses. Each mortar battalion had two batteries, each with four guns, and a light munitions column. The mission of the 21cm mortars was to engage French border fortifications, especially the Sperrforts located between the four main fortresses. There was also a 13cm flat-trajectory gun with a range of 15km, which in siege operations would allow rear-area lines of communications to be engaged in depth.

For a considerable period the largest German siege weapon was an older-type 30.5cm mortar which had been introduced in 1893. It had a maximum effective range of 7km and a shell weighing 400kg. Its official designation was a ‘heavy coastal mortar’ and its code name was ‘β-Gerät’ – ‘β apparatus’. Initially it was moved on narrow-gauge field railways, later on tractor-pulled trailers. Only nine were purchased. It was followed in 1909 by ‘β-Gerät 09’, which was also pulled by tractors and trailers. Only two of these were acquired.

In 1909 the heavy artillery also acquired a 42cm ‘short naval mortar’ (kurze Marinekanone) with a range of 14km and a 930kg shell. Its code name was γ-Gerät. It needed to be moved by regular rail line into the firing position. Firing tests showed that the weapon had outstanding accuracy as well as a very effective shell, so that in 1913–14 four more were delivered. The disadvantage of the mortar was its great weight and consequent dependence on rail mobility.

The success of the Radgürtel for the 21cm mortar led the artillery commission to use it for heavier weapons. To test this, in 1910 Krupp developed a 28cm howitzer on a wheeled Radgürtel chassis, in 1911 a 30.5cm howitzer.

In 1914 the German field army had 408 15cm howitzers, 112 21cm mortars, sixteen 10cm guns, one 28cm howitzer on a wheeled carriage, twelve 30cm mortars and seven 42cm mortars. The reserve foot artillery units included 400 15cm howitzers, 176 10cm guns and thirty-two 13cm guns. There were 420 pieces of heavy artillery without horse teams and 834 pieces of heavy fortress artillery.

Fokker D.VII

Easy flier: The Fokker D.VII was considered a fairly easy aircraft to fly – an important consideration, since, by the summer of 1918, pilots were being rushed to the front after a bare minimum of training.

Goering's Circus - Fokker D.VII Original Painting - Roger H. Middlebrook GAvA “We got into a dogfight with the new brand of Fokkers… we put up the best fight of our lives, but these Huns were just too good for us.” Lieutenant John M. Grider British pilot’s diary entry on first encountering the Fokker D.VII

By 1918, German pilots were desperate for a single-seat fighter to replace their outdated Albatroses and Fokker Dr.I triplanes. After evaluation trials held at Adlershof, Berlin, at the end of January, the Fokker D.VII was selected for mass production, and the first models arrived at the front the following April. Hard-pressed Jastas (fighter squadrons) greeted their new mounts with relief and enthusiasm. German pilot Rudolf Stark wrote: “The machines climb wonderfully and respond to the slightest movement of the controls.” Their impact on the fighting peaked during the summer of 1918, by which time some 40 Jastas were flying D.VIIs, many of them with BMW engines that gave substantially better performance than the original Mercedes power plants. Operating in skies crowded with Allied aircraft of all kinds, D.VII pilots achieved exceptional kill-rates. For example, one squadron, Jasta Boelcke, scored 46 confirmed victories in a month for the loss of only two of its own pilots. The BMW-powered D.VII was especially effective at high altitude – its pilots were among the first to be issued with experimental oxygen equipment, as well as parachutes. Flying high gave the D.VII the initial advantage in encounters with Allied fighters and also allowed it to hunt down the Allied reconnaissance aircraft, which depended on altitude for safety. About 1,500 D.VIIs were delivered before the end of the war in November 1918.

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Fokker's chief designer, Reinhold Platz, had been working on a series of experimental planes, the V-series, since 1916. These planes were characterized by the use of cantilever wings, first developed during Fokker's government-mandated collaboration with Hugo Junkers. Junkers had originated the idea in 1915 with the first all-metal aircraft, the Junkers J 1, nicknamed Blechesel ("Sheet Metal Donkey" or "Tin Donkey"). The resulting wings were thick, with a rounded leading edge. This gave greater lift and more docile stalling behavior than conventional thin wings.

Late in 1917, Fokker built the experimental V 11 biplane, fitted with the standard Mercedes D.IIIa engine. In January 1918, Idflieg held a fighter competition at Adlershof. For the first time, frontline pilots would directly participate in the evaluation and selection of new fighters. Fokker submitted the V 11 along with several other prototypes. Manfred von Richthofen flew the V 11 and found it tricky, unpleasant, and directionally unstable in a dive. In response to these complaints, Reinhold Platz lengthened the rear fuselage by one structural bay, and added a triangular fixed vertical fin in front of the rudder. Upon flying the modified V 11, Richthofen praised it as the best aircraft of the competition. It offered excellent performance from the outdated Mercedes engine, yet it was safe and easy to fly. Richthofen's recommendation virtually decided the competition, but he was not alone in recommending it. Fokker immediately received a provisional order for 400 production aircraft, which were designated D.VII by Idflieg.

Fokker's factory was not up to the task of meeting all D.VII production orders. Idflieg therefore directed Albatros and AEG to build the D.VII under license, though AEG did not ultimately produce any aircraft. Because the Fokker factory did not use detailed plans as part of its production process, Fokker simply sent a completed D.VII airframe for Albatros to copy. Albatros paid Fokker a five percent royalty for every D.VII built under license. Albatros Flugzeugwerke and its subsidiary, Ostdeutsche Albatros Werke (OAW), built the D.VII at factories in Johannisthal (designated Fokker D.VII (Alb)) and Schneidemühl (Fokker D.VII (OAW)), respectively. Aircraft markings included the type designation and factory suffix, immediately before the individual serial number.

Some parts were not interchangeable between aircraft produced at different factories, even between Albatros and OAW. Additionally each manufacturer tended to differ in nose paint styles. OAW produced examples were delivered with distinctive mauve and green splotches on the cowling. All D.VIIs were produced with the lozenge camouflage covering except for early Fokker-produced D.VIIs, which had a streaked green fuselage. Factory camouflage finishes were often overpainted with colorful paint schemes or insignia for the Jasta, or the individual pilot.

Albatros soon surpassed Fokker in the quantity and workmanship quality of aircraft produced. With a massive production program, over 3,000 to 3,300 D.VII aircraft were delivered from all three plants, considerably more than the commonly quoted but incorrect production figure of 1,700.

In September 1918, eight D.VIIs were delivered to Bulgaria. Late in 1918, the Austro-Hungarian company MÁG (Magyar Általános Gépgyár - Hungarian General Machine Company) commenced licensed production of the D.VII with Austro-Daimler engines. Production continued after the end of the war, with as many as 50 aircraft completed.

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Many sources erroneously state that the D.VII was equipped with the 160 hp Mercedes D.III engine. The Germans themselves used the generic D.III designation to describe later versions of that engine. In fact, the earliest production D.VIIs were equipped with 170-180 hp Mercedes D.IIIa. Production quickly switched to the intended standard engine, the higher-compression 134 kW (180 hp) Mercedes D.IIIaü. It appears that some early production D.VIIs delivered with the Mercedes D.IIIa were later re-engined with the D.IIIaü.

By the summer of 1918, a number of D.VIIs received the "overcompressed" 138 kW (185 hp) BMW IIIa, the first product of the BMW firm. The BMW IIIa followed the SOHC, straight-six configuration of the Mercedes D.III, but incorporated several improvements. Increased displacement, higher compression, and an altitude-adjusting carburetor produced a marked increase in speed and climb rate at high altitude. Because the BMW IIIa was overcompressed, using full throttle at altitudes below 2,000 m (6,700 ft) risked premature detonation in the cylinders and damage to the engine. At low altitudes, full throttle could produce up to 179 kW (240 hp) for a short time. Fokker-built aircraft with the new BMW engine were designated D.VII(F), the suffix "F" standing for Max Friz, the engine's designer. Some Albatros-built aircraft may also have received a separate designation.

BMW-engined aircraft entered service with Jasta 11 in late June 1918. Pilots clamored for the D.VII(F), of which about 750 were built. However, production of the BMW IIIa was very limited and the D.VII continued to be produced with the 134 kW (180 hp) Mercedes D.IIIaü until the end of the war.

D.VIIs flew with different propeller designs from different manufacturers. Despite the differing appearances there is no indication these propellers gave disparate performance. Axial, Wolff, Wotan, and Heine propellers have been noted.

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The BMW-engined D-VII had the highest ceiling of any (operational) pursuit aircraft of the war.  

The most admirable quality of the D-VII may have been the fact that it maintained its performance advantage right up to the limit of that performance and did not degrade long before that limit was reached.   It was also an easy aircraft to fly. . .forgiving to the novice, and one that made average drivers seem more qualified than they actually were.

The only plane the D VIII didn't have manoeuvrability on was the Sopwith Camel and that's only with regards to right turning.   Anyways mostly the D VIII was up high where the Camels were mostly low.

The D VIII (BMW) was faster than the Fokker Dr 1, could climb better at higher altitudes, shared the same advantages of the advanced airfoil design.   In short it had it all on the Dr 1 except manoeuvrability, which it didn't need since its enemies on the allied side were not as manoeuvrable as the D VIII.   In addition it was much easier to fly, take off and land than the Dr 1 which in the general scheme of things makes for a superior pursuit force overall.

Later on, Hermann Göring complained about the problem caused by the unbalance of having some D.VIIs with the BMW motors and the rest having Mercedes motors.   He stated, when engaging the high flying allies the Jasta was basically reduced to half engagement strength, since the BMW powered D.VIIs would leave the Mercedes powered D.VIIs in their wake.

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Variants

    V 11: Prototype

    V 21: Prototype with tapered wings

    V 22: Prototype with four-bladed propeller

    V 24: Prototype with 179 kW (240 hp) Benz Bz.IVü engine

    V 31: One D.VII aircraft fitted with a hook to tow the V 30 glider

    V 34: D.VII development with 138 kW (185 hp) BMW IIIa engine

    V 35: Two-seat development with 138 kW (185 hp) BMW IIIa engine and undercarriage fuel tank

    V 36: D.VII development with 138 kW (185 hp) BMW IIIa engine and undercarriage fuel tank

    V 38: Prototype Fokker C.I

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Frontline Strength

Fokker D.VIIs being accepted and being delivered are two different things.

1. When the acceptance flight was made at Schwerin-Gorries Airfield by the Army pilot it is the date listed on the acceptance sheets.

2. Sometime after the acceptance flight the aircraft was disassembled and loaded and blocked on flat cars.   When there are enough flat cars to make up the train, the train departs to the designated Armee Flugpark(en).   There were probably no trains made up and departed from the Fokker Flugzeugwerke in March 1918.   The Front Bestand (Front inventory lists) show 19 Fokker D.VII in the Front Line Inventory on 30 April 1918.   None of these D.VIIs had been delivered to units, all were at the Armee Flugpark being reassembled and test flown.   Jasta 10 of JG Nr1 "Richthofen" did not receive their Fokker D.VIIs until around the 24-25 of May 1918. It is my understanding that Jasta 10 was the first to receive the Fokker D.VII.

88mm FlaK18/36

 

Although initially hampered by the restrictions imposed by the Versailles Treaty, Germany rapidly developed a system of highly effective antiaircraft weapons. An early attempt, adopted in 1928, the 75mm FlaK38 fired a 14-pound shell to a maximum ceiling of 37,730 feet. In the decade following World War I, Krupp arranged with the Swedish arms giant Bofors to allow its engineers to work secretly on new designs in Sweden. One of the most successful artillery pieces of all time came about as a result of that arrangement— the famous German Eighty-Eight. Originally designed as an antiaircraft gun, combat experiences in the Spanish Civil War and early World War II proved the Eighty-Eight’s versatility in other applications. By war’s end, German designers had also adapted it to antitank, tank, and conventional field applications. The first test model was assembled in 1931, and after trials the new gun went into service in 1933 as the caliber 88mm FlaK18. With a veteran crew it achieved a firing rate of 15 rounds per minute. The FlaK18 fired a 21-pound shell to a maximum ceiling of 26,247 feet, and in a ground role it achieved a range of 9.2 miles.

Krupp engineers continued to improve the FlaK18 and also redesigned it to ease its manufacture. The redesigned Eighty-Eight entered service in 1937 as the Flak36 and saw considerable service with Germany’s Condor Legion in the Spanish Civil War. Having proved the gun’s effectiveness as a ground weapon in Spain, Krupp again improved the Eighty-Eight, by adding ground sights and providing high-explosive shells for field use. Firing high-explosive and armor-piercing ammunition, the Eighty-Eight further proved itself against British armor in North Africa in 1941–1942. As the war progressed, it became increasingly necessary to increase German tank armament to match the heavy guns and armor of the new Soviet tanks on the Eastern Front. That necessity resulted in slight modifications to the basic Eighty-Eight design, which resulted in the Kwk36 (Kampfwagen Kanone) and the Kwk43, for use in Tiger tanks and self-propelled guns.