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Northover Projector

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The Projector, 2.5 inch —more commonly known as the Northover Projector —was an ad hoc anti-tank weapon used by the British Army and Home Guard during the Second World War .

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108-510: With a German invasion of Great Britain seeming likely after the defeat in the Battle of France , most available weaponry was diverted to the regular British Army, leaving the Home Guard short on supplies, particularly anti-tank weaponry. The Northover Projector was designed by Home Guard officer Robert Harry Northover to act as a makeshift anti-tank weapon, and was put into production in 1940 following

216-406: A German counter-attack of about 60 tanks. Three of the guns were knocked out, and all bar one gunner killed or fatally wounded. Despite the truck being on fire, Gunn manned the gun himself with a sergeant as his loader, engaging the enemy at 800 yards, he fired 40-50 rounds knocking out two tanks and damaging others before he was killed. The battery commander then took over. From mid-1942, the 2-pdr

324-520: A German invasion of England would be a matter of life and death for the British, and they would unhesitatingly commit their naval forces, to the last ship and the last man, into an all-out fight for survival. Our Air Force could not be counted on to guard our transports from the British Fleets, because their operations would depend on the weather, if for no other reason. It could not be expected that even for

432-503: A base for the successful prosecution of the air and sea war against England". With the prospect of the Channel ports falling under Kriegsmarine (German Navy) control, Grand Admiral ( Großadmiral ) Erich Raeder (head of the Kriegsmarine ) attempted to anticipate the obvious next step that might entail and instructed his operations officer, Kapitän Hansjürgen Reinicke , to draw up

540-571: A brief period our Air Force could make up for our lack of naval supremacy. On 13 August 1940, Jodl, Chief of Operations in the OKW ( Oberkommando der Wehrmacht ) wrote his "Assessment of the situation arising from the views of the Army and Navy on a landing in England." His first point was that "The landing operation must under no circumstances fail. A failure could leave political consequences, which would go far beyond

648-632: A combined operational headquarters, similar to the Allies' creation of the Supreme Headquarters Allied Expeditionary Force (SHAEF) for the later Normandy landings, under which all three service branches (Army, Navy, and Air Force) could work together to plan, co-ordinate, and execute such a complex undertaking. The invasion was to be on a broad front, from around Ramsgate to beyond the Isle of Wight . Preparations, including overcoming

756-455: A demonstration to the Prime Minister , Winston Churchill . The weapon consisted of a hollow metal tube attached to a tripod, with a rudimentary breech at one end. Rounds were fired with the use of black powder ignited by a standard musket percussion cap, and it had an effective range of between 100 and 150 yards. Although it was cheap and easy to manufacture, it did have several problems; it

864-452: A desperate situation, but which we have no reason whatsoever to undertake at this moment." The Kriegsmarine invested considerable energy in planning and assembling the forces for an elaborate deception plan called Operation Herbstreise or "Autumn Journey". The idea was first mooted by Generaladmiral Rolf Carls on 1 August proposing a feint expedition into the North Sea resembling

972-501: A document examining "the possibility of troop landings in England should the future progress of the war make the problem arise". Reinicke spent five days on this study and set forth the following prerequisites: On 22 November 1939, the Head of Luftwaffe (German Air Force) intelligence Joseph "Beppo" Schmid presented his "Proposal for the Conduct of Air Warfare", which argued for a counter to

1080-561: A first wave of nine divisions from the 9th and 16th armies landing along four stretches of beach – two infantry divisions on beach 'B' between Folkestone and New Romney supported by a special forces company of the Brandenburg Regiment, two infantry divisions on beach 'C' between Rye and Hastings supported by three battalions of submersible/floating tanks, two infantry divisions on beach 'D' between Bexhill and Eastbourne supported by one battalion of submersible/floating tanks and

1188-514: A landing in Britain. He prefaced the order by stating: "As England, despite her hopeless military situation, still shows no signs of willingness to come to terms, I have decided to prepare, and if necessary to carry out, a landing operation against her. This operation aimed to eliminate the English Motherland as a base from which the war against Germany can be continued, and, if necessary, to occupy

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1296-569: A lighter version of the weapon, the Northover Projector Mk 2 was developed in 1941, but few were produced. The Northover Projector was issued to both Home Guard and regular British Army units, and by August, 1941 over 8,000 Northover Projectors were in service. This number had increased to 18,919 by the beginning of 1943. Initial reactions to the Northover Projector were varied, with a number of Home Guard volunteers uncertain about

1404-420: A number of German General Staff members. After the war, Admiral Karl Dönitz said he believed air superiority was "not enough". Dönitz stated, "[W]e possessed neither control of the air or the sea; nor were we in any position to gain it". In his memoirs, Raeder, commander-in-chief of the Kriegsmarine in 1940, wrote: [U]p until now the British had never thrown the full power of their fleet into action. However,

1512-443: A quick result. At a meeting that day, OKH Chief of General Staff Franz Halder heard from Secretary of State Ernst von Weizsäcker that Hitler had turned his attention to Russia. Halder met Admiral Otto Schniewind on 1 July, and they shared views without understanding each other's position. Both thought that air superiority was needed first, and could make the invasion unnecessary. They agreed that minefields and U-boats could limit

1620-513: A second company of the Brandenburg Regiment, and three infantry divisions on beach 'E' between Beachy Head and Brighton . A single airborne division would land in Kent north of Hythe ; with the objective of seizing the aerodrome at Lympne and bridge-crossings over the Royal Military Canal , and in assisting the ground forces in capturing Folkestone. Folkestone (to the east) and Newhaven (to

1728-543: A small number of slow and vulnerable Heinkel He 115 floatplanes. The Luftwaffe made 21 deliberate attacks on small torpedo boats during the Battle of Britain, sinking none. The British had between 700 and 800 small coastal craft (MTBs, Motor Gun Boats and smaller vessels), making them a critical threat if the Luftwaffe could not deal with the force. Only nine MTBs were lost to air attack out of 115 sunk by various means throughout

1836-434: A small quantity of black powder ignited by a "top hat" copper cap as used in muzzle loading rifles <Curtis (HBSA)2014>; any recoil from the weapon was absorbed by the legs of the tripod, which were also hollow. It had a maximum range of approximately 300 yards but was accurate only to between 100 and 150 yards Home Guard units often added their own modifications to the weapon, which included mounting it on carriages or even

1944-654: A tank weapon and an anti-tank gun. For reasons of economy and standardization, it was accepted - as the 2-pdr Mark IX - for both purposes in October 1935. Carriages for the gun were designed by Vickers and the Design Department at the Woolwich Arsenal . Vickers was the first to submit a design, which was accepted as the 'Ordnance QF 2-pounder Mark IX on Carriage Mark I'. A limited number of pieces were built in 1936. The carriage had an innovative three-legged construction. In

2052-464: A troop convoy heading for Scotland, with the aim of drawing the British Home Fleet away from the intended invasion routes. Initially, the convoy was to consist of about ten small cargo ships fitted with false funnels to make them appear larger, and two small hospital ships . As the plan gathered momentum, the large ocean liners Europa , Bremen , Gneisenau and Potsdam were added to

2160-698: The Kanalkampf , which forced RAF Fighter Command into defensive action. In addition, wider raids gave aircrew experience of day and night navigation and tested the defences. On 13 August, the German Luftwaffe began a series of concentrated aerial attacks (designated Unternehmen Adlerangriff or Operation Eagle Attack ) on targets throughout the United Kingdom in an attempt to destroy the RAF and establish air superiority over Great Britain . The change in emphasis of

2268-619: The 22nd Air Landing Division had been captured (subsequently shipped to Britain as prisoners of war ), around 250 Junkers Ju 52 transport aircraft had been lost, and several hundred elite paratroops and air-landing infantry had been killed or injured. Consequently, even in September 1940 the Luftwaffe had the capacity to provide only around 3,000 airborne troops to participate in the first wave of Operation Sea Lion. The Battle of Britain began in early July 1940 with attacks on shipping and ports in

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2376-506: The Battle of Wuhan in 1938. In September 1939, the successful German invasion of Poland infringed on both a French and a British alliance with Poland and both countries declared war on Germany. On 9 October, Hitler's "Directive No. 6 for the Conduct of the War" planned an offensive to defeat these allies and "win as much territory as possible in Holland, Belgium, and northern France to serve as

2484-639: The Berghof to persuade him that the best way to pressure the British into a peace agreement would be a siege combining air and submarine attacks. Hitler agreed with him that invasion would be a last resort. Jodl set out the OKW proposals for the proposed invasion in a memorandum issued on 12 July, which described operation Löwe (Lion) as "a river crossing on a broad front", irritating the Kriegsmarine . On 13 July, Hitler met Field Marshal von Brauchitsch and Halder at Berchtesgaden and they presented detailed plans prepared by

2592-645: The Bofors 37 mm , and significantly outclassed 25mm and 20mm weapons of that era. A drawback of the 2-pounder was that it was nearly twice as heavy as the PaK 36 and had a higher profile. The gun was first put into use on armoured fighting vehicles as the main armament of the new lines of cruiser and infantry tanks - the Cruiser Mk I and the Matilda II which entered production in 1937. The Light Tank Mk VII designed in 1937 also had

2700-618: The Dunkirk evacuation , remained in service during the North African campaign . In its vehicle-mounted variant the 2-pounder was a common main gun on British tanks early in World War II, as well as being a typical main armament of armoured cars , such as the Daimler , throughout the war. As the armour protection of Axis tanks improved, the 2-pounder lost effectiveness and it was gradually replaced by

2808-505: The Hipper to operate alone. Ordnance QF 2 pounder The Ordnance QF 2-pounder ( QF denoting "quick firing"), or simply "2 pounder gun", was a 40 mm (1.575 in) British anti-tank gun and vehicle-mounted gun employed in the Second World War . It was the main anti-tank weapon of the artillery units in the Battle of France and, due to the need to rearm quickly after

2916-519: The Kriegsmarine had only one heavy cruiser, two light cruisers, and four destroyers available for operations. Raeder was strongly opposed to Sea Lion, for over half of the Kriegsmarine surface fleet had been either sunk or badly damaged in Weserübung , and his service was hopelessly outnumbered by the ships of the Royal Navy. British parliamentarians still arguing for peace negotiations were defeated in

3024-482: The Kriegsmarine , which was also to prevent Royal Navy ships from getting through the Channel, while the Luftwaffe had to control airspace over the landings. The Kriegsmarine response was focused on pointing out the many difficulties to be surmounted if invading England was to be a viable option. It could not envisage taking on the Royal Navy Home Fleet and said it would take a year to organise shipping for

3132-426: The Luftwaffe that they planned to eliminate the RAF, destroying its aircraft manufacturing and supply systems, with damage to naval forces as a secondary aim. A Luftwaffe report presented to the OKW at a meeting on 11 July said that it would take 14 to 28 days to achieve air superiority. The meeting also heard that England was discussing an agreement with Russia. On the same day, Grand Admiral Raeder visited Hitler at

3240-553: The May 1940 War Cabinet Crisis , but throughout July the Germans continued with attempts to find a diplomatic solution. In a report presented on 30 June, OKW Chief of Staff Alfred Jodl reviewed options to increase pressure on Britain to agree to a negotiated peace. The first priority was to eliminate the Royal Air Force and gain air supremacy . Intensified air attacks against shipping and

3348-472: The North African Campaign the army had to rely on the 2-pdr, augmented by the 25 pounder gun-howitzer functioning as an anti-tank gun—a role for which it was capable (at the expense of diverting it from its main artillery role). As German tank design evolved, anti-armour performance of the 2-pdr gradually became insufficient; however, the gun owes a large part of the bad reputation it gained during

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3456-498: The Second World War . Only nine destroyers were sunk by air attack in 1940, out of a force of over 100 operating in British waters at the time. Only five were sunk while evacuating Dunkirk , despite large periods of German air superiority, thousands of sorties flown, and hundreds of tons of bombs dropped. The Luftwaffe ' s record against merchant shipping was also unimpressive: it sank only one in every 100 British vessels passing through British waters in 1940, and most of this total

3564-559: The special forces of the Brandenburg Regiment , controlled by the Abwehr . This initial plan was vetoed by opposition from both the Kriegsmarine and the Luftwaffe , who successfully argued that an amphibious force could only be assured air and naval protection if confined to a narrow front, and that the landing areas should be as far from Royal Navy bases as possible. The definitive order of battle adopted on 30 August 1940 envisaged

3672-505: The 57 mm QF 6-pounder starting in 1942. It equipped infantry battalion anti-tank platoons replacing their anti-tank rifles until in turn replaced by 6-pounders but remained in service until the end of the war. This QF 2-pounder was distinctly different from the QF 2 pounder "pom-pom" gun naval anti-aircraft gun used by the Royal Navy which was a 40 mm autocannon. The gun was developed as both

3780-508: The 6-pdr, it remained in use with armoured cars. Its performance as an anti-armour weapon was improved later in the war with the development of more sophisticated ammunition and got an additional boost with the introduction of the Littlejohn adaptor , which converted it to a squeeze-bore design firing specially-designed shells at much higher velocities. However, the Littlejohn adaptor prevented

3888-510: The Belgian Army). Although Woolwich Arsenal had already designed a successor to the 2-pdr, the 6 pounder gun , it was decided in the face of a possible German invasion to re-equip the army with the 2-pdr, avoiding the period of adaptation to production, and also of re-training and acclimatization with the new weapon. Consequently, 6 pounder production was delayed until November 1941 and frontline availability until spring 1942. Thus during most of

3996-522: The Berghof conference on 31 July, the Luftwaffe were not represented. Raeder said barge conversions would take until 15 September, leaving the only possible 1940 invasion dates as 22–26 September, when weather was likely to be unsuitable. Landings would have to be on a narrow front and would be better in spring 1941. Hitler wanted the invasion in September as the British army was increasing in strength. After Raeder left, Hitler told von Brauchitsch and Halder that

4104-693: The British blockade and said "Key is to paralyse the British trade" by blocking imports to Britain and attacking seaports. The OKW ( Oberkommando der Wehrmacht or "High Command of the Armed Forces") considered the options and Hitler's 29 November "Directive No. 9 – Instructions For Warfare Against The Economy of the Enemy" stated that once the coast had been secured, the Luftwaffe and Kriegsmarine were to blockade UK ports with sea mines, attack shipping and warships, and make air attacks on shore installations and industrial production. This directive remained in force in

4212-405: The British had no hope of survival, and ought to negotiate, but were hoping to get Russia to intervene and halt German oil supplies. Invasion was very risky, and he asked them if direct attacks by air and submarine could take effect by mid September. Jeschonnek proposed large bombing attacks so that responding RAF fighters could be shot down. The idea that invasion could be a surprise "river crossing"

4320-461: The Channel on the night of S-Tag plus two, having been moored for three full days off the South coast of England. The Army had sought to have the third echelon cross in later separate convoys to avoid men and horses having to wait for as long as four days and nights in their barges, but the Kriegsmarine were insistent that they could only protect the four fleets from Royal Navy attack if all vessels crossed

4428-615: The Channel together. A total of 138,000 men would have been landed in the first two days, rising to 248,000 within the first fortnight. In the summer of 1940, the headquarters staff of the British Army's Commander-in-Chief, Home Forces tended to consider East Anglia and the East coast to be the most likely landing sites for a German invasion force, as this would have offered much greater opportunities to seize ports and natural harbours, and would be further from naval forces at Portsmouth . But then

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4536-597: The German invasion of the Low Countries and the subsequent rear-guard actions at Dunkirk . Most of the British Army's 2-pdrs were left behind in France during the retreat, stripping most of the army's infantry anti-tank capability. Those guns captured at Dunkirk entered German service under the designation 4.0 cm Pak 192 (e) or 4.0 cm Pak 154 (b) , the "e" and "b" referring to the origin (English or mistakenly attributed to

4644-419: The Germans could not have gained air superiority before the weather window closed. Others have said that it was unlikely the Luftwaffe would ever have been able to destroy RAF Fighter Command. If British losses became severe, the RAF could simply have withdrawn northward and regrouped. It could then deploy if the Germans launched an invasion. Most historians agree Sea Lion would have failed regardless because of

4752-440: The Germans hoped. During the Dunkirk evacuation , few warships were actually sunk, despite being stationary targets. The overall disparity between the opposing naval forces made the amphibious invasion plan extremely risky, regardless of the outcome in the air. In addition, the Kriegsmarine had allocated its few remaining larger and more modern ships to diversionary operations in the North Sea. The fleet of defeated France, one of

4860-428: The Home Guard, designed it to be an easily manufactured and cheap anti-tank weapon, costing just under £10 to produce, excluding the required tripod. The Major wrote directly to the Prime Minister , Winston Churchill , with his design and arranged for Churchill to attend a demonstration of the Northover Projector. The Prime Minister approved of the weapon and gave it his personal endorsement, ordering in October 1940 that

4968-526: The Italian Air Corps ( Corpo Aereo Italiano or CAI), to assist in the Luftwaffe ' s aerial campaign over Britain in October and November 1940. The most daunting problem for Germany in protecting an invasion fleet was the small size of its navy. The Kriegsmarine , already numerically far inferior to Britain's Royal Navy, had lost a sizeable portion of its large modern surface ships in April 1940 during

5076-560: The Low Countries gained control of the Channel coast, facing what Schmid's 1939 report called their "most dangerous enemy". Raeder met Hitler on 21 May 1940 and raised the topic of invasion, but he warned of the risks and expressed a preference for blockade by air, submarines and raiders . By the end of May, the Kriegsmarine had become even more opposed to invading Britain following its costly victory in Norway ; after Operation Weserübung ,

5184-519: The Norwegian campaign, either as complete losses or due to battle damage. In particular, the loss of two light cruisers and ten destroyers was crippling, as these were the very warships most suited to operating in the Channel narrows where the invasion would likely take place. Most U-boats , the most powerful arm of the Kriegsmarine , were meant for destroying ships, not supporting an invasion. Although

5292-511: The RAF, were to be in place by mid August. Grand Admiral Raeder sent a memorandum to OKW on 19 July, complaining about the onus placed on the navy in relation to the army and air force, and stating that the navy would be unable to achieve its objectives. The first joint services conference on the proposed invasion was held by Hitler in Berlin on 21 July, with Raeder, Brauchitsch, and Luftwaffe Chief of Staff Hans Jeschonnek . Hitler told them that

5400-471: The Royal Navy could not bring the whole of its naval superiority to bear – as most of the fleet was engaged in the Atlantic and Mediterranean , and a substantial proportion had been detached to support Operation Menace against Dakar  – the British Home Fleet still had a very large advantage in numbers. It was debatable whether British ships were as vulnerable to enemy air attack as

5508-471: The Soviet Union . Raeder met Hitler on 25 July to report on navy progress: they were not sure if preparations could be completed during August: he was to present plans at a conference on 31 July. On 28 July, he told OKW that ten days would be needed to get the first wave of troops across the Channel, even on a much narrower front. Planning was to resume. In his diary, Halder noted that if what Raeder had said

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5616-553: The U.K. were promising; however the system was still being developed when the war ended, and the program was subsequently ended along with it. Another development was the 2-pdr HV 'Pipsqueak', a postwar gun using a 40x438R cartridge originally intended as the main armament for the Alvis Saladin armoured car that was to replace the AEC armoured car . This was designed to fire Armour-Piercing Discarding Sabot (APDS) rounds, which would match

5724-478: The Vickers carriage, the gun could also be fired from its wheels, at the expense of limited traverse. The shield was 5/16 inch armour plate. Typically it was towed by a 15-cwt (3/4-ton) truck with 68 rounds on the truck with a further 14 on the carriage itself. It could also be carried "portee" on a 30-cwt truck. The 40 mm 2-pounder could outperform a typical 37 mm piece, such as the German 3.7 cm PaK 36 or

5832-573: The absence of any sign that the Royal Air Force had been defeated, Hitler postponed Sea Lion indefinitely on 17 September 1940. It was never put into action. Adolf Hitler hoped for a negotiated peace with the UK and made no preparations for amphibious assault on Britain until the Fall of France . At the time, the only forces with experience and modern equipment for such landings were the Japanese, which they used during

5940-713: The accumulation of invasion barges in French ports from late August 1940 rather indicated a landing on the South coast. Consequently, the main Home Forces mobile reserve force was held back around London, so as to be able to move forwards to protect the capital, either into Kent or Essex. Hence, Sea Lion landings in Kent and Sussex would have been initially opposed by XII Corps of Eastern Command with three infantry divisions and two independent brigades and V Corps of Southern Command with three infantry divisions. In reserve were two more Corps under GHQ Home Forces; located south of London

6048-568: The adaptor, the carrier was squeezed from 40 mm to 30 mm diameter. The reduction in cross-sectional area increased the driving force and therefore the velocity of the round taking penetration from 52 mm to 88 mm. A late-war project was the Canadian David High Velocity to allow 2-pdr ammunition to be fired from the larger-calibre 6-pdr. This was intended to improve the muzzle velocity of the shot. Initial trials carried out in Canada and

6156-423: The air attack was to start around 5 August; eight to fourteen days after that, he would decide on the landing operation. London was showing new-found optimism, and he attributed this to their hopes of intervention by Russia, which Germany was to attack in the spring of 1941. On 1 August 1940, through Führer Directive No.17, Hitler instructed intensified air and sea warfare to "establish the necessary conditions for

6264-451: The army on the assumption that the navy would provide safe transport. To the surprise of Von Brauchitsch and Halder, and completely at odds with his normal practice, Hitler did not ask any questions about specific operations, had no interest in details, and made no recommendations to improve the plans; instead, he simply told OKW to start preparations. On 16 July 1940 Hitler issued Führer Directive No. 16, setting in motion preparations for

6372-495: The beaches on S-Tag itself, preferably at daybreak around two hours after high tide. The barges used for the first echelon would be retrieved by tugs on the afternoon of S-Tag, and those still in working order would be drawn up alongside the transport vessels to trans-ship the second echelon overnight, so that much of the second echelon and third echelon could land on S-Tag plus one, with the remainder on S-Tag plus two. The Navy intended that all four invasion fleets would return across

6480-501: The bombing from RAF bases to bombing London , however, turned Adlerangriff into a short-range strategic bombing operation. The effect of the switch in strategy is disputed. Some historians argue the change in strategy lost the Luftwaffe the opportunity of winning the air battle or air superiority. Others argue the Luftwaffe achieved little in the air battle and the RAF was not on the verge of collapse, as often claimed. Another perspective has also been put forward, which suggests

6588-513: The campaign to the open terrain, which made the high-silhouette piece hard to conceal, and to poor tactics. In North Africa, it was found that the 2-pdr was damaged by being towed long distances across rough, stony deserts. Starting in 1941, the British developed the " en portee " method of mounting the 2-pdr, and later the 6-pounder, on a truck. Though only intended for transport, with the gun carried unloaded, crews tended to fire from their vehicles for more mobility, with consequent casualties. Hence

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6696-621: The channel on barges, would consist of the vehicles, horses, stores and personnel of the division-level support services. Loading of barges and transports with heavy equipment, vehicles and stores would start in Antwerp nine days before the first day of Operation Sealion ("S-Tag" minus nine); and S-Tag minus eight in Dunkirk, with horses not loaded till S-Tag minus two. All troops would be loaded onto their barges from French or Belgian ports on S-Tag minus two or S-Tag minus one. The first echelon would land on

6804-555: The convoys would head west towards Scotland before turning around at about 21:00 on the following day. In addition, the only heavy warships available to the Kriegsmarine , the heavy cruisers Admiral Scheer and Admiral Hipper , would attack the British armed merchant cruisers of the Northern Patrol and convoys inbound from Canada; however, the Scheer' s repairs overran and if the invasion had taken place in September, would have left

6912-422: The country completely." The code name for the invasion was Seelöwe , "Sea Lion". Hitler's directive set four conditions for the invasion to occur: This ultimately placed responsibility for Sea Lion ' s success squarely on the shoulders of Raeder and Göring, neither of whom had the slightest enthusiasm for the venture and, in fact, did little to hide their opposition to it. Nor did Directive 16 provide for

7020-421: The economy could affect food supplies and civilian morale in the long term. Reprisal attacks of terror bombing had the potential to cause quicker capitulation but the effect on morale was uncertain. Once the Luftwaffe had control of the air and the British economy had been weakened, an invasion would be a last resort or a final strike (" Todesstoss ") after the UK had already been practically defeated, but could have

7128-645: The end of the Battle of France and the evacuation of the British Expeditionary Force from the port of Dunkirk between 26 May and 4 June 1940, a German invasion of Great Britain seemed likely. However, the British Army was not well-equipped to defend the country in such an event; in the weeks after the Dunkirk evacuation it could field only twenty-seven divisions. The Army was particularly short of anti-tank guns, 840 of which had been left behind in France, leaving only 167 available in Britain; ammunition

7236-527: The final conquest of England". From 5 August, subject to weather delays, the Luftwaffe was "to overpower the English Air Force with all the forces at its command, in the shortest possible time." Attacks were then to be made on ports and food stocks, while leaving alone ports to be used in the invasion, and "air attacks on enemy warships and merchant ships may be reduced except where some particularly favourable target happens to present itself." The Luftwaffe

7344-705: The first phase of the Battle of Britain. In December 1939, the German Army issued its own study paper (designated Nordwest ) and solicited opinions and input from both the Kriegsmarine and the Luftwaffe . The paper outlined an assault on England's eastern coast between The Wash and the River Thames by troops crossing the North Sea from ports in the Low Countries . It suggested airborne troops as well as seaborne landings of 100,000 infantry in East Anglia , transported by

7452-401: The first wave landing forces was divided into three echelons. The first echelon, carried across the Channel on barges, coasters and small motor launches, would consist of the main infantry assault force. The second echelon, carried across the Channel in larger transport vessels, would consist predominantly of artillery, armoured vehicles and other heavy equipment. The third echelon, carried across

7560-413: The gun commander could rotate the gun by pushing against the gunners shoulders. The commander was aided by a simple ring and bead sight on the top of the shield. The gunner had a 1.9x magnification telescopic sight with a 21 degree field of view, graduated from 600 yd (550 m) to 1,800 yd (1,600 m) at 300 yd intervals. The gunner also had a notch and bead sight above the telescopic With

7668-401: The gun, as did the Daimler armoured car developed in the following years. To improve performance a squeeze bore system was developed. The Littlejohn adaptor which screwed onto the end of the gun's barrel was used with Armour-piercing, composite non-rigid (APCNR) ammunition. The round fired a light alloy carrier surrounding a heavy tungsten shot; as it passed through the tapered barrel of

7776-547: The invasion. At a meeting with the army, the navy proposed delay until May 1941, when the new battleships Bismarck and Tirpitz would be ready. A navy memorandum issued on 30 July said invasion would be vulnerable to the Royal Navy, and autumn weather could prevent necessary maintenance of supplies. The OKW assessed alternatives, including attacking the British in the Mediterranean, and favoured extended operations against England while remaining on good terms with Russia. At

7884-745: The light of battlefield experience, and the high-explosive shell was not produced until late 1942. The 2-pdr gun became a part of the Royal Artillery in 1938, when five field brigades were converted to anti-tank regiments. In the early western campaigns, the 2-pdr was employed by two types of Royal Artillery formations: anti-tank regiments of infantry divisions (four batteries with 12 pieces each), and light anti-aircraft/anti-tank regiments of armoured divisions (two 12-gun AT batteries). From October 1940, separate 48-gun anti-tank regiments were introduced in armoured divisions too. Infantry brigade structure initially included an anti-tank company , though it

7992-449: The list. These were organised into four separate convoys, escorted by light cruisers, torpedo boats and minesweepers, some of which were obsolete vessels being used by naval training bases. The plan was that three days before the actual invasion, the troopships would load the men and equipment of four divisions in major Norwegian and German ports and put to sea, before unloading them again on the same day in quieter locations. Returning to sea,

8100-554: The main invasion forces. The same airborne tactics had also been used in support of the invasions of Belgium and the Netherlands on 10 May 1940. However, although spectacular success had been achieved in the airborne assault on Fort Eben-Emael in Belgium, German airborne forces had come close to disaster in their attempt to seize the Dutch government and capital of The Hague . Around 1,300 of

8208-407: The military ones." He believed that the Luftwaffe could meet its essential objectives, but if the Kriegsmarine could not meet the operational requirements of the Army for an attack on a broad front with two divisions landed within four days, followed promptly by three further divisions irrespective of weather, "then I consider the landing to be an act of desperation, which would have to be risked in

8316-486: The most powerful and modern in the world, might have tipped the balance against Britain if it had been captured by the Germans. However, the pre-emptive destruction of a large part of the French fleet by the British Attack on Mers-el-Kébir on 3 July 1940 ensured that this could not happen. Those who believed that, regardless of a potential German victory in the air battle, Sea Lion was still not going to succeed included

8424-517: The obsolete weapons designed for the Home Guard, the Northover Projector was only taken out of service when it could be replaced with "marginally less ineffective" weapons provided by the Army, such as the 2-pounder anti-tank gun . Operation Sealion Luxembourg The Netherlands Belgium France Britain 1941–1943 1944–1945 Germany Strategic campaigns Operation Sea Lion , also written as Operation Sealion ( German : Unternehmen Seelöwe ),

8532-467: The penetration of the 'Littlejohn adaptor' shot while still allowing high-explosive (HE) shells to be fired. The claimed performance was better, the 1,295 m/s (4,250 ft/s) shot penetrating 85 mm (3.3 in) of armour at 60 degrees at 900 m (980 yd). Development of this gun was also abandoned when the role of the Saladin shifted towards infantry fire support, and a low-velocity 76 mm gun

8640-401: The prospects for success. Nevertheless, both the German Army and Navy undertook major preparations for an invasion. These included training troops, developing specialised weapons and equipment, modifying transport vessels and the collection of a large number of river barges and transport ships on the Channel coast. However, in light of mounting Luftwaffe losses in the Battle of Britain and

8748-527: The seafront at Brighton, perhaps supported by a second airborne force landing on the South Downs. Contrariwise, the Kriegsmarine (fearful of possible fleet action against the invasion forces from Royal Navy ships in Portsmouth) insisted that the divisions enshipped from Cherbourg and Le Havre for landing on beach 'E', might be diverted to any one of the other beaches where sufficient space allowed. Each of

8856-445: The sidecars of motorcycles. It was served by a crew of three. Ammunition for the weapon consisted of the No. 76 Special Incendiary Grenade , a glass bottle "containing a phosphorus mixture which burst into livid flames, giving off quantities of suffocating smoke upon exposure to the air", as well as normal hand and rifle grenades. The Projector had a number of defects. It was difficult to move,

8964-478: The third wave. The order of battle defined on 30 August remained as the agreed overall plan but was always considered as potentially subject to change if circumstances demanded it. The Army High Command continued to press for a wider landing area if possible, against the opposition of the Kriegsmarine ; in August they had won the concession that, if the opportunity arose, a force might be landed directly from ships onto

9072-481: The threat posed by the Royal Navy; Schniewind emphasised the significance of weather conditions. On 2 July, the OKW asked the services to start preliminary planning for an invasion, as Hitler had concluded that invasion would be achievable in certain conditions, the first of which was command of the air, and specifically asked the Luftwaffe when this would be achieved. On 4 July, after asking General Erich Marcks to begin planning an attack on Russia, Halder heard from

9180-430: The travelling position, one of the legs was used as a towing trail, and the other two were folded. When the gun was positioned for combat, the legs were emplaced on the ground and the wheels were lifted up. Woolwich Arsenal had continued to develop their carriage and when re-examined was seen to be superior to Vickers design, and with this carriage the gun was adopted as 'Ordnance QF 2-pounder Mark IX on Carriage Mark II'. It

9288-469: The tripod had the tendency to damage itself if it was dropped, and its discharge pressure has been described as "feeble." The phosphorus grenades exhibited a number of faults when used in the Projector; they could often explode inside the weapon if too much black powder were added, or fall short if too little were used, or even fail to explode. They could also break inside the barrel when fired which often led to

9396-438: The troops. Reichsmarschall Hermann Göring , head of the Luftwaffe , responded with a single-page letter in which he stated, "[A] combined operation having the objective of landing in England must be rejected. It could only be the final act of an already victorious war against Britain as otherwise the preconditions for success of a combined operation would not be met". Germany's swift and successful occupation of France and

9504-527: The two. He considered invasion to be a last resort, to be used only if all other options had failed. As a precondition for the invasion of Britain , Hitler demanded both air and naval superiority over the English Channel and the proposed landing sites. The German forces achieved neither at any point of the war. Further, both the German High Command and Hitler himself held serious doubts about

9612-512: The vehicles tended to reverse into action so that the gunshield of the 2-pdr would provide a measure of protection against enemy fire. An infantry battalion anti-tank platoon would have eight guns on 3-ton lorries On 21 November 1941 during battle of Sidi Rezegh Second lieutenant George Ward Gunn J Battery Royal Horse Artillery was earned the Victoria Cross for his action with a 2-pdr. The troop of four portee 2-pdrs under his command engaged

9720-738: The weakness of the German Kriegsmarine compared to the Royal Navy . The record of the Luftwaffe against naval combat vessels up to that point in the war was poor. In the Norwegian campaign, despite eight weeks of continuous air supremacy, the Luftwaffe sank only two British warships: the light cruiser HMS  Curlew and the destroyer HMS  Gurkha . The German aircrews were not trained or equipped to attack fast-moving naval targets, particularly agile naval destroyers or motor torpedo boats (MTB). The Luftwaffe also lacked armour-piercing bombs and their only aerial torpedo capability, essential for defeating larger warships, consisted of

9828-467: The weapon be mass-produced on a scale of one for every Home Guard platoon. The Northover Projector—which was officially labelled the "Projector, 2.5 inch" by the War Office —was formed of a hollow metal tube, resembling a drain pipe, mounted on top of a cast-iron tripod. It weighed approximately 27.2 kilograms. A simple breech was attached to one end of the tube, and rounds were fired from the Projector with

9936-413: The weapon being damaged and its crew injured. Even when fired properly, the Projector gave off a large cloud of smoke which could take up to a minute to clear and revealed the weapon's position. Bishop argues that its anti-tank abilities would have been 'doubtful' when it fired hand and rifle grenades, although he considers that the phosphorus grenades might have been more successful. To make handling easier,

10044-505: The weapon's unusual design, and some officers never accepted that it could be useful. However, most Home Guard units came to accept the weapon and have confidence in it, aided by large amounts of what Mackenzie terms "War Office propaganda" which cited the positive qualities of the weapon, such as its simplicity of use, ease of manufacture and low maintenance requirements. It was, as one Home Guard volunteer put it, "something to be accepted gratefully until something better arrived." Like many of

10152-425: The west) were the only cross-channel port facilities that would have been accessible to the invasion forces; and much depended on these being captured substantially intact or with the capability of rapid repair; in which case the second wave of eight divisions (including all the motorised and armoured divisions) might be unloaded directly onto their respective quaysides. A further six infantry divisions were allocated to

10260-533: Was Nazi Germany 's code name for their planned invasion of the United Kingdom . It was to take place during the Battle of Britain , nine months after the start of the Second World War . Following the Battle of France and that country's capitulation, Adolf Hitler , the German Führer and Supreme Commander of the Armed Forces , hoped the British government would accept his offer to end the state of war between

10368-508: Was achieved using mines. Had an invasion taken place, the Bf 110 equipped Erprobungsgruppe 210 would have dropped Seilbomben just prior to the landings. This was a secret weapon which would have been used to blackout the electricity network in south-east England. The equipment for dropping the wires was fitted to the Bf 110 aeroplanes and tested. It involved dropping wires across high voltage wires and

10476-417: Was conceptually similar, although the wheels had to be removed when the gun was emplaced for combat. This carriage was also manufactured by Vickers. The unusual construction gave the gun good stability and a traverse of 360 degrees , allowing it to quickly engage moving vehicles from any approach. The gunner had handwheels for traverse and elevation. Additionally, he could disengage the traverse mechanism and

10584-407: Was difficult to move and the No. 76 Special Incendiary Grenades it used as one type of ammunition had a tendency to break inside the breech, damaging the weapon and injuring the crew. Production began in late 1940, and by the beginning of 1943 nearly 19,000 were in service. Like many obsolete Home Guard weapons, it was eventually replaced by other weapons, such as the 2-pounder anti-tank gun . With

10692-431: Was dismissed by Raeder, and the navy could not complete its preparations by mid August. Hitler wanted the air attack to commence early in August and, if it succeeded, the invasion was to start around 25 August before weather deteriorated. Hitler's main interest was the question of countering potential Russian intervention. Halder outlined his first thoughts on defeating Russian forces. Detailed plans were to be made to attack

10800-558: Was increasingly displaced to infantry anti-tank platoons, to Home Guard units in Great Britain, and to the Far East, where it was still effective against the smaller and more lightly armoured Japanese tanks. It was finally removed from service entirely in December 1945. As a vehicle weapon, it remained in use throughout the war. Although most tanks equipped with it were withdrawn or upgraded to

10908-415: Was probably as dangerous to the aircraft crews as to the British. Upon hearing of Hitler's intentions, Italian dictator Benito Mussolini , through his Foreign Minister Count Galeazzo Ciano , quickly offered up to ten divisions and thirty squadrons of Italian aircraft for the proposed invasion. Hitler initially declined any such aid but eventually allowed a small contingent of Italian fighters and bombers,

11016-409: Was selected for it instead. Initially one of the most serious shortcomings of the 2-pdr was the lack of a high-explosive shell resulting from the British doctrine, especially when the 2-pdr was the main gun of a tank; this was very important when a tank was being used for infantry support, intentionally leaving it with only its machine gun for anti-personnel use. The doctrine was slow to change even in

11124-520: Was so scarce for the remaining guns that regulations forbade even a single round being used for training purposes. Given these shortcomings, any modern weapons that were available were allocated to the British Army, and the Home Guard was forced to supplement the meagre amount of outdated weapons and ammunition they had with ad hoc weapons. One such weapon was the Northover Projector, the invention of Major Robert Harry Northover. Northover, an officer in

11232-557: Was the VII Corps with the 1st Canadian Infantry Division , an armoured division and an independent armoured brigade, while north of London was IV Corps with an armoured division, infantry division and independent infantry brigade. See British army anti invasion preparations . The success of the German invasion of Denmark and Norway , on 9 April 1940, had relied extensively on the use of paratroop and glider-borne formations ( Fallschirmjäger ) to capture key defensive points in advance of

11340-453: Was to be organised into two army groups drawn from the 6th Army , the 9th Army and the 16th Army . The first wave of the landing would have consisted of thirteen infantry and mountain divisions , the second wave of eight panzer and motorised infantry divisions and finally, the third wave was formed of six further infantry divisions. The initial assault would have also included two airborne divisions under Luftwaffe command, and

11448-416: Was to keep sufficient forces in reserve for the proposed invasion and was not to target civilians without a direct order from Hitler in response to RAF terror bombing. No decision had been reached on the choice between immediate decisive action and a siege. The Germans hoped the air action would force the British to negotiate and make invasion unnecessary. In the Army plan of 25 July 1940, the invasion force

11556-435: Was true, "all previous statements by the navy were so much rubbish and we can throw away the whole plan of invasion". On the next day, Halder dismissed the navy's claims and required a new plan. The Luftwaffe announced on 29 July that they could begin a major air attack at the start of August, and their intelligence reports gave them confidence of a decisive result. Half of their bombers were to be kept in reserve to support

11664-474: Was typically equipped with 25 mm Hotchkiss anti-tank guns ; these companies were disbanded later in the war. From 1942, infantry battalions received their own six-gun anti-tank platoons . The organization was different in the Far East theatres. The exact internal structure of AT units was also subject to changes and variations. The gun first saw combat with the British Expeditionary Force (World War II) during

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