The Tizard Mission , officially the British Technical and Scientific Mission , was a delegation from the United Kingdom that visited the United States during World War II to share secret research and development (R&D) work that had military applications. It received its popular name from the programme's instigator, Henry Tizard , a British scientist and chairman of the Aeronautical Research Committee , which had orchestrated the development of radar .
141-576: The mission travelled to the U.S. in September 1940 during the Battle of Britain . They conveyed a number of British technical and scientific secrets with the objective of securing U.S. assistance in sustaining the war effort and obtaining the industrial resources to exploit the military potential of these technologies, which Britain itself could not fully use, due to the immediate demands of other war-related production. Referring to one such British secret,
282-515: A 250 kg bomb underneath the fuselage, the later model arriving during the battle. The Bf 109, unlike the Stuka , could fight on equal terms with RAF fighters after releasing its ordnance . At the start of the battle, the twin-engined Messerschmitt Bf 110C long-range Zerstörer ("Destroyer") was also expected to engage in air-to-air combat while escorting the Luftwaffe bomber fleet. Although
423-406: A Navy experimental shortwave 10-centimetre wavelength radar but had to admit that it had not enough transmitter power and they were at a dead end. Bowen and Cockcroft then revealed the cavity magnetron, with an amazing power output of about ten kilowatts at 10 centimetres. This disclosure dispelled any tension left between the delegations, and the meeting then went smoothly. Britain was interested in
564-538: A base for the successful prosecution of the air and sea war against England". On 29 November, OKW "Directive No. 9 – Instructions For Warfare Against The Economy Of The Enemy" stated that once this coastline had been secured, the Luftwaffe together with the Kriegsmarine (German Navy) was to blockade UK ports with sea mines. They were to attack shipping and warships and make air attacks on shore installations and industrial production. This directive remained in force in
705-683: A device known as a resonant cavity magnetron , American historian James Phinney Baxter III later wrote, "When the members of the Tizard Mission brought one to America in 1940, they carried the most valuable cargo ever brought to our shores." The mission also opened up channels of communication for jet engine and atomic bomb development, leading to the British contribution to the Manhattan Project , and catalyzed Allied technological cooperation during World War II . The Tizard mission
846-460: A government loan guarantee. In 1937 it appointed the architect Percy Thomas to produce designs. He proposed an American-inspired station that would involve removing or resiting the arch, and included office frontages along Euston Road and a helicopter pad on the roof. Redevelopment began on 12 July 1938, when 100,000 long tons (101,605 tonnes) of limestone was extracted for the building and new flats were constructed to rehouse people displaced by
987-607: A lack of capacity. The following year, two platforms (later 9 and 10) were constructed on vacant land to the west of the station that had been reserved for Great Western Railway services. The L&BR amalgamated with the Manchester & Birmingham Railway and the Grand Junction Railway in 1846 to form the LNWR. The company headquarters were established at Euston requiring a block of offices to be built between
1128-630: A large concourse separate from the train shed. Originally, no seats were installed there to deter vagrants and crime, but were added after complaints from passengers. Few remnants of the older station remain: two Portland stone entrance lodges, the London and North Western Railway War Memorial and a statue of Robert Stephenson by Carlo Marochetti , from the old ticket hall, stands in the forecourt. A large statue by Eduardo Paolozzi named Piscator dedicated to German theatre director Erwin Piscator
1269-557: A last resort once the British economy had been damaged and the Luftwaffe had full air superiority. On 2 July, OKW requested preliminary plans. In Britain, Churchill described "the great invasion scare" as "serving a very useful purpose" by "keeping every man and woman tuned to a high pitch of readiness". Historian Len Deighton stated that on 10 July Churchill advised the War Cabinet that invasion could be ignored, as it "would be
1410-567: A more capable opponent than any it had previously met: a sizeable, highly coordinated, well-supplied, modern air force. The Luftwaffe's Messerschmitt Bf 109E and Bf 110C fought against the RAF's workhorse Hurricane Mk I and the less numerous Spitfire Mk I ; Hurricanes outnumbered Spitfires in RAF Fighter Command by about 2:1 when war broke out. The Bf 109E had a better climb rate and was up to 40 mph faster in level flight than
1551-529: A most hazardous and suicidal operation". On 11 July, Hitler agreed with Raeder that invasion would be a last resort, and the Luftwaffe advised that gaining air superiority would take 14 to 28 days. Hitler met his army chiefs, von Brauchitsch and Halder , at the Berchtesgaden on 13 July where they presented detailed plans on the assumption that the navy would provide safe transport. Von Brauchitsch and Halder were surprised that Hitler took no interest in
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#17327733521241692-585: A series of meetings with each division of the NDRC. When the American and British teams met, there was initially some cautious probing by each side to avoid giving away too much without getting anything back in exchange. At a meeting hosted by NDRC's two-month-old "Microwave Committee" chairman Dr Alfred Loomis at the Wardman Park Hotel on 19 September 1940 the British disclosed the technical details of
1833-578: A signal and communications building and various staff offices. The parcel deck was reinforced using 5,500 tons of structural steelwork. Signalling on the routes leading out of the station was reworked along with the electrification of the lines, including the British Rail Automatic Warning System . Fifteen platforms had been completed by 1966, and the electric service began on 3 January. An automated parcel depot above platforms 3 to 18 opened on 7 August 1966. The station
1974-446: A similar proposal; when rebuffed, he told Churchill that interference with German domination would mean war. To Hitler's great annoyance, all his diplomacy failed to stop Britain from declaring war when he invaded Poland. During the fall of France, he repeatedly discussed peace efforts with his generals. When Churchill came to power, there was still wide support for Halifax, who as Foreign Secretary openly argued for peace negotiations in
2115-513: A small trunk: a lockable metal deed box, used for holding important valuable documents such as property deeds. Bowen was allowed to take 'Magnetron Number 12' with him. After spending the night under Bowen's hotel bed, the case was strapped to the roof of a taxi to the station. An over-eager railway porter whisked it from Bowen at Euston Station to take it to the train to Liverpool and Bowen almost lost sight of it. Inconsistently, in Liverpool,
2256-446: A study (in 1939) on the possibility of an invasion of Britain and concluded that it also required naval superiority. The Luftwaffe said invasion could only be "the final act in an already victorious war." Hitler first discussed the idea of an invasion at a 21 May 1940 meeting with Grand Admiral Erich Raeder, who stressed the difficulties and his own preference for a blockade. OKW Chief of Staff Jodl's 30 June report described invasion as
2397-643: A surprise to the Jagdwaffe , although the German pilots retained a strong belief that the 109 was the superior fighter. The British fighters were equipped with eight Browning .303 (7.7mm) machine guns while most Bf 109Es had two 20mm cannons supplemented by two 7.92mm machine guns. The 20mm cannons were much more effective than the .303; during the Battle it was not unknown for damaged German bombers to limp home with up to two hundred .303 hits. At some altitudes,
2538-576: A temporary halt at Denbigh Hall near Bletchley where a coach service was provided to Rugby . The line to Curzon Street station in Birmingham opened on 17 September 1838, the journey of 112 miles (180 km) took around 5 + 1 ⁄ 4 hours. The incline from Camden Town to Euston involved crossing the Regent's Canal on a gradient of more than 1 in 68. Because steam trains at the time could not climb such an ascent, they were cable-hauled on
2679-483: A vampiric loathing of sunlight". Michael Palin , explorer and travel writer, in his contribution to Great Railway Journeys titled "Confessions of a Trainspotter" in 1980, likened it to "a great bath, full of smooth, slippery surfaces where people can be sloshed about efficiently". Journalist Barney Ronay described the station as "easily, easily the worst main station in Western Europe" and that using it
2820-659: A waste of strategic effort. The defeat of France in June 1940 introduced the prospect for the first time of independent air action against Britain. A July Fliegercorps I paper asserted that Germany was by definition an air power: "Its chief weapon against England is the Air Force, then the Navy, followed by the landing forces and the Army." In 1940, the Luftwaffe would undertake a " strategic offensive ... on its own and independent of
2961-400: Is "like being taken away to be machine gunned in the woods by various mobile phone and soft drinks companies". Access to parts of the station is difficult for people with physical disability . The introduction of lifts in 2010 made the taxi rank and underground station accessible from the concourse, though some customers found them unreliable and frequently broken down. Wayfindr technology
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#17327733521243102-756: Is a major central London railway terminus managed by Network Rail in the London Borough of Camden . It is the southern terminus of the West Coast Main Line , the UK's busiest inter-city railway. Euston is the tenth-busiest station in Britain and the country's busiest inter-city passenger terminal, being the gateway from London to the West Midlands , North West England , North Wales and Scotland . Intercity express passenger services to
3243-511: Is a satisfactory development and that it is approaching production, although we yet do not know just how satisfactory it is. Certainly, if it is now in such state that the British plans call for large production in five months, it is extraordinarily advanced and no time should be lost on the matter". The Tizard mission was hailed as a success, especially for its impact on the subsequent development and deployment of radar as well as wider Allied technological cooperation during World War II . Although
3384-591: Is also defeated, the fundamental conditions for a successful war against England will have been secured. England can then be blockaded from Western France at close quarters by the Air Force, while the Navy with its submarines extend the range of the blockade." When war commenced, Hitler and the OKW ( Oberkommando der Wehrmacht or "High Command of the Armed Forces") issued a series of directives ordering, planning and stating strategic objectives. "Directive No. 1 for
3525-596: Is considered to be a significant factor in the eventual Allied victory in the Second World War. According to James Phinney Baxter III, Official Historian of the Office of Scientific Research and Development : "[T]he greatest of [British] contributions to radar was the development of the resonant cavity magnetron.... This revolutionary discovery... was the first tube capable of producing power enough to make radar feasible at wave lengths of less than 50 centimeters. When
3666-541: Is derived from the This was their finest hour speech delivered by Winston Churchill in the House of Commons on 18 June, more than three weeks prior to the generally accepted date for the start of the battle: ... What General Weygand called the Battle of France is over. I expect that the battle of Britain is about to begin. Upon this battle depends the survival of Christian civilization. Upon it depends our own British life and
3807-600: Is named after Euston Hall in Suffolk, the ancestral home of the Dukes of Grafton , the main landowners in the area during the mid-19th century. It is set back from Euston Square and Euston Road on the London Inner Ring Road , between Cardington Street and Eversholt Street in the London Borough of Camden . It is one of 20 stations managed by Network Rail . As of the 2022-23 estimates of station usage, it
3948-516: Is not part of these plans. Two hotels on Cardington Street adjacent to the west of the station were also demolished. In August 2019, the Department for Transport (DfT) ordered an independent review of the project, chaired by the British civil engineer Douglas Oakervee . The Oakervee Review was published by the Department for Transport the following February, alongside a statement from
4089-475: Is one of the nastiest concrete boxes in London: devoid of any decorative merit; seemingly concocted to induce maximum angst among passengers; and a blight on surrounding streets. The design should never have left the drawing-board – if, indeed, it was ever on a drawing-board. It gives the impression of having been scribbled on the back of a soiled paper bag by a thuggish android with a grudge against humanity and
4230-529: Is reserved to me. Attacks on the English homeland are to be prepared, bearing in mind that inconclusive results with insufficient forces are to be avoided in all circumstances. Both France and the UK declared war on Germany; on 9 October, Hitler's "Directive No. 6" planned the offensive to defeat these allies and "win as much territory as possible in the Netherlands, Belgium, and northern France to serve as
4371-465: Is seen as one of the key events that forged the wartime Anglo-American alliance . After the war, it became the foundation for future cooperation in scientific research at institutions within and across the United States, United Kingdom and Canada. Britain made significant scientific advances in military technology, weapons and their components before World War II began in September 1939. After
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4512-410: Is sited at the front of the courtyard, which as of 2016 was reported to be deteriorating. Other pieces of public art, including low stone benches by Paul de Monchaux around the courtyard, were commissioned by Network Rail in 1990. The station has catering units and shops, a large ticket hall and an enclosed car park with over 200 spaces. The lack of daylight on the platforms compares unfavourably with
4653-553: Is the tenth-busiest station in Britain It is the eighth-busiest terminus in London by entries and exits. Euston bus station is in front of the main entrance. Euston was the first inter-city railway station in London. It opened on 20 July 1837 as the terminus of the London and Birmingham Railway (L&BR). It was demolished in the 1960s and replaced with the present building in the international modern style. The site
4794-622: The Chain Home early warning radar stations. The British thought the Americans did not have anything like this, but found it was virtually identical to the US Navy's longwave CXAM radar . The Americans then described their microwave research done by Loomis and Karl Compton earlier in 1940. The British realised that Bell Telephone Laboratories and General Electric both could contribute a lot to receiver technology. The Americans had shown
4935-615: The Defense Visual Information Distribution Service . Battle of Britain Asia-Pacific Mediterranean and Middle East Other campaigns Coups Luxembourg The Netherlands Belgium France Britain 1941–1943 1944–1945 Germany Strategic campaigns The Battle of Britain ( German : Luftschlacht um England , lit. 'air battle for England')
5076-634: The Earl of Euston , the Earl of Rosse and John Betjeman . Experts did not believe the work would cost £190,000 and speculated it could be done more cheaply by foreign labour. On 16 October 1961, 75 architects and students staged a demonstration against its demolition inside the Great Hall and a week later Sir Charles Wheeler led a deputation to speak with the Prime Minister Harold Macmillan . Macmillan replied that as well as
5217-537: The Euston Arch , also by Hardwick, symbolised the arrival of a major new transport system and was "the gateway to the north". It was 72 feet (22 m) high, supported on four 44 ft 2 in (13.46 m) by 8 ft 6 in (2.59 m) hollow Doric propylaeum columns of Bramley Fall stone , the largest ever built. It was completed in May 1838 and cost £35,000 (now £3,981,000). The old station building
5358-612: The Fall of France in June 1940, which saw Germany overrun most of the countries of Western Europe, Germany's planned invasion of the United Kingdom, Operation Sea Lion , was preceded by its effort to establish air superiority in the Battle of Britain . Henry Tizard was a British scientist and chairman of the Aeronautical Research Committee , which had orchestrated the development of radar before
5499-714: The German bombing of the UK was largely over by the time that the new radar systems were in production, technology such as aircraft radar and LORAN navigation greatly helped the Allied war effort in Europe and the Pacific. The development of the cavity magnetron , a key radar component, would enable the production of radar units small enough to be installed in night fighters , allow antisubmarine aircraft to locate surfaced U-boats and provide great navigational assistance to bombers. It
5640-517: The London and North Western Railway (LNWR) (1846–1923), the London, Midland and Scottish Railway (LMS) (1923–1948), British Railways (1948–1994), Railtrack (1994–2002) and Network Rail (2002–present). The plan was to construct a station near the Regent's Canal in Islington to provide a connection for London dock traffic. An alternative site at Marble Arch , proposed by Robert Stephenson,
5781-526: The Luftwaffe was formally announced, with Walther Wever as Chief of Staff. The 1935 Luftwaffe doctrine for "Conduct of Air War" ( Luftkriegführung ) set air power within the overall military strategy, with critical tasks of attaining (local and temporary) air superiority and providing battlefield support for army and naval forces. Strategic bombing of industries and transport could be decisive longer-term options, dependent on opportunity or preparations by
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5922-761: The Manhattan Project . The Tizard Mission is seen as one of the key events in forging the wartime Anglo-American alliance . It was the foundation for cooperation in scientific research at institutions within and across the United States, the United Kingdom and Canada. Its legacy was marked on its 75th anniversary in 2015 by various groups including: the Massachusetts Institute of Technology , Imperial College London , Office of Naval Research , British Embassy in Washington , Canadian Embassy in Washington , National Air and Space Museum , and
6063-677: The Norden bombsight . President Roosevelt apologised and said that it was not available to Britain unless it could be shown that the Germans had something similar . Tizard was not unduly dismayed as he thought there were other US technologies more useful to Britain than the bombsight, and he asked for the unit's external dimensions so that British bombers could be modified to take it, if it became available at some future date. GEC at Wembley made 12 prototype cavity magnetrons in August 1940, and No 12
6204-694: The Prime Minister Boris Johnson confirming that HS2 would go ahead in full, with reservations. The review said the rebuild was "not satisfactory" and called the management "muddled" and recommended a change of governance. In Summer 2020, the government asked Network Rail's chairman, Sir Peter Hendy , to lead an oversight board; in October 2020, the Architects' Journal reported that more than £100m had already been spent on engineering and architectural design fees. In October 2023,
6345-642: The 110 was faster than the Hurricane and almost as fast as the Spitfire, its lack of manoeuvrability and acceleration meant that it was a failure as a long-range escort fighter. On 13 and 15 August, thirteen and thirty aircraft were lost, the equivalent of an entire Gruppe , and the type's worst losses during the campaign. This trend continued with a further eight and fifteen lost on 16 and 17 August. Euston Station Euston railway station ( / ˈ j uː s t ən / YOO -stən ; or London Euston )
6486-590: The Arch and the platforms. The station's facilities were expanded with the opening of the Great Hall on 27 May 1849 replacing the original sheds. The Great Hall was designed by Hardwick's son Philip Charles Hardwick in classical style. It was 125 ft (38 m) long, 61 ft (18.6 m) wide, and 62 ft (18.9 m) high with a coffered ceiling and a sweeping double flight of stairs leading to offices at its northern end. Architectural sculptor John Thomas contributed eight allegorical statues representing
6627-585: The Battle period he sought neutrality or a peace treaty with Britain. In a secret conference on 23 May 1939, Hitler set out his rather contradictory strategy that an attack on Poland was essential and "will only be successful if the Western Powers keep out of it. If this is impossible, then it will be better to attack in the West and to settle Poland at the same time" with a surprise attack. "If Holland and Belgium are successfully occupied and held, and if France
6768-595: The Bf 109 could outclimb the British fighter. It could also engage in vertical-plane negative- g manoeuvres without the engine cutting out because its DB 601 engine used fuel injection ; this allowed the 109 to dive away from attackers more readily than the carburettor -equipped Merlin. On the other hand, the Bf 109E had a much larger turning circle than its two foes. In general, though, as Alfred Price noted in The Spitfire Story : ... the differences between
6909-538: The British Foreign Secretary , Lord Halifax , and certain elements of the British public favoured a negotiated peace with an ascendant Germany, Churchill and a majority of his Cabinet refused to consider an armistice. Instead, Churchill used his skilful rhetoric to harden public opinion against capitulation and prepare the British for a long war. The Battle of Britain has the unusual distinction that it gained its name before being fought. The name
7050-532: The British and the Americans. The British recognized the atomic bomb was a serious possibility when Franz Simon reported in December 1940 to the British MAUD Committee that it was feasible to separate the isotope uranium-235 . Following this, the British created a nuclear weapons project, code named Tube Alloys , and encouraged the United States to begin this type of research, which became
7191-527: The British trade". Instead of the Wehrmacht attacking the French, the Luftwaffe with naval assistance was to block imports to Britain and attack seaports. "Should the enemy resort to terror measures – for example, to attack our towns in western Germany" they could retaliate by bombing industrial centres and London. Parts of this appeared on 29 November in "Directive No. 9" as future actions once
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#17327733521247332-551: The Channel. In September, RAF Bomber Command night raids disrupted the German preparation of converted barges, and the Luftwaffe's failure to overwhelm the RAF forced Hitler to postpone and eventually cancel Operation Sea Lion. The Luftwaffe proved unable to sustain daylight raids, but their continued night-bombing operations on Britain became known as the Blitz. Germany's failure to destroy Britain's air defences and force it out of
7473-632: The Conduct of the War", dated 31 August 1939, instructed the invasion of Poland on 1 September as planned . Potentially, Luftwaffe "operations against England" were to: dislocate English imports, the armaments industry, and the transport of troops to France. Any favourable opportunity of an effective attack on concentrated units of the English Navy, particularly on battleships or aircraft carriers, will be exploited. The decision regarding attacks on London
7614-401: The French surrender on 22 June 1940, Hitler mainly focused his energies on the possibility of invading the Soviet Union . He believed that the British, defeated on the continent and without European allies, would quickly come to terms. The Germans were so convinced of an imminent armistice that they began constructing street decorations for the homecoming parades of victorious troops. Although
7755-464: The Great Hall was demolished and an 11,000-square-foot (1,000 m ) temporary building housed ticket offices and essential facilities. Euston worked to 80% capacity during the works with at least 11 platforms in operation at any time. Services were diverted elsewhere where practical and the station remained operational throughout the works. The first phase of construction involved building 18 platforms with two track bays to handle parcels above them,
7896-437: The Great Hall; the entrance gates; and a turntable from 1846 discovered during demolition. By the 1930s Euston was again congested and the LMS considered rebuilding it. In 1931 it was reported that a site for a new station was being sought, the most likely option was behind the existing station in the direction of Camden Town. The LMS announced in 1935 that the station (including the hotel and offices) would be rebuilt using
8037-450: The London area via the Watford DC Line which runs parallel to the West Coast Main Line as far as Watford Junction . Euston tube station is connected to the main concourse and Euston Square tube station is nearby. King's Cross and St Pancras railway stations are about 1 ⁄ 2 mile (800 metres) east along Euston Road . Euston, the first inter-city railway terminal in London, was planned by George and Robert Stephenson . It
8178-433: The Low Countries in the Battle of France , leaving Britain to face the threat of invasion by sea. The German high command recognised the difficulties of a seaborne attack while the Royal Navy controlled the English Channel and the North Sea . On 16 July, Hitler ordered the preparation of Operation Sea Lion as a potential amphibious and airborne assault on Britain, to follow once the Luftwaffe had air superiority over
8319-403: The Luftwaffe lacked the means to do much damage to Britain's war economy beyond laying naval mines . Joseph Schmid , in charge of Luftwaffe intelligence, presented a report on 22 November 1939, stating that, "Of all Germany's possible enemies, Britain is the most dangerous." This "Proposal for the Conduct of Air Warfare" argued for a counter to the British blockade and said "Key is to paralyse
8460-604: The Luftwaffe mainly targeting coastal-shipping convoys, as well as ports and shipping centres such as Portsmouth . On 1 August, the Luftwaffe was directed to achieve air superiority over the RAF, with the aim of incapacitating RAF Fighter Command ; 12 days later , it shifted the attacks to RAF airfields and infrastructure . As the battle progressed, the Luftwaffe also targeted factories involved in aircraft production and strategic infrastructure. Eventually, it employed terror bombing on areas of political significance and on civilians. The Germans had rapidly overwhelmed France and
8601-663: The Minister in charge of Defence Coordination, Sir Thomas Inskip , sided with Dowding that "The role of our air force is not an early knock-out blow" but rather was "to prevent the Germans from knocking us out" and fighter squadrons were just as necessary as bomber squadrons. The Spanish Civil War (1936–1939) gave the Luftwaffe Condor Legion the opportunity to test air fighting tactics with their new aeroplanes. Wolfram von Richthofen became an exponent of air power providing ground support to other services. The difficulty of accurately hitting targets prompted Ernst Udet to require that all new bombers had to be dive bombers , and led to
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#17327733521248742-402: The OKW reviewed the potential for an air- and seaborne invasion of Britain: the Kriegsmarine was faced with the threat the Royal Navy's larger Home Fleet posed to a crossing of the English Channel , and together with the German Army viewed control of airspace as a necessary precondition. The German navy thought air superiority alone was insufficient; the German naval staff had already produced
8883-451: The Prime Minister Rishi Sunak announced that construction of the Euston terminus and approach tunnel would not be government funded and that it could only go ahead with private sector investment. Transport for London commissioner Andy Lord was sceptical that the private sector would pay for the link to Old Oak Common. The demolition of the original buildings in 1962 was described by the Royal Institute of British Architects as "one of
9024-425: The Rotol (constant speed propeller) equipped Hurricane Mk I, depending on altitude. The speed and climb disparity with the original non-Rotol Hurricane was even greater. By mid-1940, all RAF Spitfire and Hurricane fighter squadrons converted to 100 octane aviation fuel, which allowed their Merlin engines to generate significantly more power and an approximately 30 mph increase in speed at low altitudes through
9165-474: The Soviet Union. Erhard Milch organised rapid expansion, and following the 1933 Nazi seizure of power , his subordinate Robert Knauss formulated a deterrence theory incorporating Douhet's ideas and Tirpitz's "risk theory" . This proposed a fleet of heavy bombers to deter a preventive attack by France and Poland before Germany could fully rearm. A 1933–34 war game indicated a need for fighters and anti-aircraft protection as well as bombers. On 1 March 1935,
9306-463: The Spitfire and the Me 109 in performance and handling were only marginal, and in a combat they were almost always surmounted by tactical considerations of which side had seen the other first, which had the advantage of sun, altitude, numbers, pilot ability, tactical situation, tactical co-ordination, amount of fuel remaining, etc. The Bf 109E was also used as a Jabo ( jagdbomber , fighter-bomber ) – the E-4/B and E-7 models could carry
9447-412: The USA and so there were further barriers to co-operation. Tizard decided the most productive approach would be simply to give away the information and use America's productive capacity. Neither Winston Churchill nor the radar pioneer, Robert Watson-Watt , were initially in agreement with these tactics for the mission. Nevertheless, Tizard first arranged for Archibald Hill , another scientific member of
9588-417: The abyss of a new Dark Age made more sinister, and perhaps more protracted, by the lights of a perverted science. Let us therefore brace ourselves to our duties, and so bear ourselves that, if the British Empire and its Commonwealth last for a thousand years, men will still say, "This was their finest hour". From the outset of his rise to power, Adolf Hitler expressed admiration for Britain, and throughout
9729-421: The area occupied by the Great Hall and the Arch. Permission to demolish the Arch and Great Hall was sought from London County Council and it was granted on condition that that the Arch would be restored and re-sited. BR estimated it would cost at least £190,000 (now £6,700,000) and was not viable. The Arch's demolition, announced by the Minister of Transport, Ernest Marples in July 1961, drew objections from
9870-439: The area. The number of platforms would increase from 18 to 21. In 2008, it was reported that the Arch could be rebuilt. In September 2011, the demolition plans were cancelled, and Aedas was appointed to give the station a makeover. In July 2014 a statue of navigator and cartographer Matthew Flinders , who circumnavigated the globe and charted Australia, was unveiled at Euston; his grave was rumoured to lie under platform 15 at
10011-433: The army and navy. It could be used to overcome a stalemate, or used when only destruction of the enemy's economy would be conclusive. The list excluded bombing civilians to destroy homes or undermine morale, as that was considered a waste of strategic effort, but the doctrine allowed revenge attacks if German civilians were bombed. A revised edition was issued in 1940, and the continuing central principle of Luftwaffe doctrine
10152-423: The church. To avoid public outcry, the remains were reinterred at St Pancras Cemetery . Two more platforms (4 and 5) opened in 1891. Four departure platforms (now platforms 12–15), bringing the total to 15, and a booking office on Drummond Street opened on 1 July 1892. The line between Euston and Camden was doubled between 1901 and 1906. A new booking hall opened in 1914 on part of the cab yard. The Great Hall
10293-500: The cities served by the line. The station faced Drummond Street, further back from Euston Road than the front of the modern complex; Drummond Street now terminates at the side of the station but then ran across its front. A short road, Euston Grove, ran from Euston Square towards the arch. A bay platform (later platform 7) for local services to Kensington (Addison Road) opened in 1863. Two new platforms (1 and 2) were added in 1873 along with an entrance for cabs from Seymour Street. At
10434-509: The coast had been conquered. On 24 May 1940 "Directive No. 13" authorised attacks on the blockade targets, as well as retaliation for RAF bombing of industrial targets in the Ruhr. After the defeat of France, the OKW felt they had won the war, and some more pressure would persuade Britain to give in. On 30 June, the OKW Chief of Staff Alfred Jodl issued his paper setting out options: the first
10575-423: The collapse of Railtrack. In 2005 Network Rail was reported to have long-term aspirations to redevelop the station, removing the 1960s buildings and providing more commercial space by using the " air rights " above the platforms. In 2007, British Land announced that it had won the tender to demolish and rebuild the station, spending some £250 million of its overall redevelopment budget of £1 billion for
10716-412: The committee, to go to Washington to explore the possibilities. Hill's report to Tizard was optimistic. After Churchill's approval of the project, the team began gathering all technical secrets which had potential military uses. At the end of August, Tizard went to the U.S. by air to make preliminary arrangements. The rest of the mission would follow by ship. They were: All the documents were gathered in
10857-402: The conduct of air and sea warfare against England" issued on 1 August attempted to keep all the options open. The Luftwaffe's Adlertag campaign was to start around 5 August, subject to weather, with the aim of gaining air superiority over southern England as a necessary precondition of invasion, to give credibility to the threat and give Hitler the option of ordering the invasion. The intention
10998-439: The continent, and on 30 June the OKW Chief of Staff, Alfred Jodl , issued his review of options to increase pressure on Britain to agree to a negotiated peace. The first priority was to eliminate the RAF and gain air supremacy. Intensified air attacks against shipping and 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
11139-536: The continuing influence of the 1935 "Conduct of the Air War" doctrine, the main focus of the Luftwaffe command (including Göring) was in concentrating attacks to destroy enemy armed forces on the battlefield, and "blitzkrieg" close air support of the army succeeded brilliantly. They reserved strategic bombing for a stalemate situation or revenge attacks, but doubted if this could be decisive on its own and regarded bombing civilians to destroy homes or undermine morale as
11280-469: The cost, there was nowhere large enough to relocate the Arch in keeping with its surroundings. Demolition began on 6 November and was completed within four months. The station was rebuilt by Taylor Woodrow Construction to a design by London Midland Region architects of British Railways, William Robert Headley and Ray Moorcroft , in consultation with Richard Seifert & Partners . Redevelopment began in summer 1962 and progressed from east to west,
11421-627: The defending armies in Norway in early 1940 created a significant political crisis in Britain. In early May 1940, the Norway Debate questioned the fitness for office of the British Prime Minister Neville Chamberlain . On 10 May, the same day Winston Churchill became British Prime Minister, the Germans initiated the Battle of France with an aggressive invasion of French territory. RAF Fighter Command
11562-402: The delegation also met a Canadian, George Laurence , who had secretly built his own slow neutron experiment. Laurence had anticipated Fermi's work by several months. Tizard met with both Vannevar Bush and George W. Lewis and told them about jet propulsion, but he revealed very little except the seriousness of British efforts. Bush later recalled: "The interesting parts of the subject, namely
11703-537: The delegation reported that the slow neutron research conducted by French exiles in Cambridge, Columbia (by Fermi) and Canada (by Laurence) was probably irrelevant to the war effort. Nonetheless, since nuclear boilers could have some post-war value, they arranged for some financial support for the Canadian fission experiments. George Laurence later became involved in the secret exchanges of nuclear information between
11844-586: The design and development of jet engines. Vannevar Bush recommended that arrangements should be made to produce the British engine in the United States by finding a suitable company. This company turned out to be General Electric and the US Whittle engine would emerge as the General Electric I-A and subsequent production General Electric J31 . When they returned to the UK in November 1940,
11985-551: The development of the Knickebein system for night time navigation. Priority was given to producing large numbers of smaller aeroplanes, and plans for a long-range, four-engined strategic bomber were cancelled. The early stages of the Second World War saw successful German invasions on the continent, aided decisively by the air power of the Luftwaffe, which was able to establish tactical air superiority with great effectiveness. The speed with which German forces defeated most of
12126-531: The diversion of some services to Old Oak Common (for Crossrail ). This would include eight commuter trains per hour originating/terminating between Tring and Milton Keynes Central inclusive. In 2016, the Mayor Sadiq Khan endorsed the plans and suggested that all services should terminate at Old Oak Common while a more appropriate solution is found for Euston. The current scheme does not provide any direct access between High Speed 2 at Euston and
12267-538: The down line towards Camden until 1844, after which bank engines were used. The L&BR's act of Parliament prohibited the use of locomotives in the Euston area, following concerns of residents about noise and smoke from locomotives toiling up the incline. The station was built with space left vacant for extra platforms, as it was originally planned for the Great Western Railway (GWR) to use Euston, as
12408-536: The effect on morale was uncertain. On the same day, the Luftwaffe Commander-in-Chief, Hermann Göring issued his operational directive: to destroy the RAF, thus protecting German industry, and also to block overseas supplies to Britain. The German Supreme Command argued over the practicality of these options. In "Directive No. 16 – On preparations for a landing operation against England" on 16 July, Hitler required readiness by mid-August for
12549-472: The existing High Speed 1 at St Pancras. In 2015, plans were announced to link the two stations via a travelator service. Platforms 17 and 18 closed in May and June 2019 for High Speed 2 preparation work. The Euston Downside Carriage Maintenance Depot was demolished in 2018 in preparation for the start of tunnelling. The two office towers in front of the station were demolished between January 2019 and December 2020. The third tower at 1 Eversholt Street
12690-610: The explicit way in which the investigation was being carried out, were apparently not known to Tizard, and at least he did not give me any indication that he knew such details". Later, Bush realised that the development of the Whittle engine was far ahead of the NACA project. In July 1941 he wrote to General "Hap" Arnold , commander of the USAAF , "It becomes evident that the Whittle engine
12831-685: The first independent strategic bombing campaign. Hitler's 1925 book Mein Kampf mostly set out his hatreds: he only admired ordinary German World War I soldiers and Britain, which he saw as an ally against communism. In 1935 Hermann Göring welcomed news that Britain, as a potential ally, was rearming. In 1936 he promised assistance to defend the British Empire, asking only a free hand in Eastern Europe, and repeated this to Lord Halifax in 1937. That year, von Ribbentrop met Churchill with
12972-475: The first phase of the Battle of Britain. It was reinforced on 24 May during the Battle of France by "Directive No. 13", which authorised the Luftwaffe "to attack the English homeland in the fullest manner, as soon as sufficient forces are available. This attack will be opened by an annihilating reprisal for English attacks on the Ruhr Basin." By the end of June 1940, Germany had defeated Britain's allies on
13113-559: The glazed trainshed roofs of traditional Victorian railway stations, but the use of the space above as a parcels depot released the maximum space at ground level for platforms and passenger facilities. Since 1996, proposals have been formulated to reconstruct the Arch as part of the redevelopment of the station, and its use as the terminus of the High Speed 2 line. Ownership of the station transferred from British Rail to Railtrack in 1994, passing to Network Rail in 2002 following
13254-521: The greatest acts of Post-War architectural vandalism in Britain" and was approved directly by Harold Macmillan . The attempts made to preserve the earlier building, championed by Sir John Betjeman , led to the formation of the Victorian Society and heralded the modern conservation movement. This movement saved the nearby high Gothic St Pancras station when threatened with demolition in 1966, ultimately leading to its renovation in 2007 as
13395-677: The greatest scientific advances made at that time. The technology Britain possessed included the greatly-improved cavity magnetron , the design for the proximity VT fuse , details of Frank Whittle 's jet engine and the Frisch–Peierls memorandum and MAUD Report describing the feasibility of an atomic bomb. Though these may be considered the most significant, many other technologies had also been developed, including designs for rockets, superchargers, gyroscopic gunsights , submarine detection devices, self-sealing fuel tanks and plastic explosives . Congress had many proponents of neutrality for
13536-420: The invasion plans, unlike his usual attitude toward military operations, but on 16 July he issued Directive No. 16, ordering preparations for Operation Sea Lion. The navy insisted on a narrow beachhead and an extended period for landing troops; the army rejected these plans: the Luftwaffe could begin an air attack in August. Hitler held a meeting of his army and navy chiefs on 31 July. The navy said 22 September
13677-400: The job of making magnetrons, producing the first 30 in October 1940, and over a million by the end of the war. The Tizard delegation also visited Enrico Fermi at Columbia University and told Fermi of the Frisch–Peierls concept for an atomic bomb. Fermi was highly sceptical, mainly because his research was geared towards using nuclear power to produce steam, not atomic bombs. In Ottawa ,
13818-453: The long continuity of our institutions and our Empire . The whole fury and might of the enemy must very soon be turned on us. Hitler knows that he will have to break us in this island or lose the war. If we can stand up to him, all Europe may be free and the life of the world may move forward into broad, sunlit uplands. But if we fail, then the whole world, including the United States, including all that we have known and cared for, will sink into
13959-699: The magnetron was given a full Army escort. The team arrived in Halifax , Canada, on 6 September on board the CPR Liner Duchess of Richmond (later known as the RMS ; Empress of Canada ), and went on to Washington, D.C., a few days later. The team of six assembled in Washington on 12 September 1940. Tizard met Vannevar Bush , the chairman of the National Defense Research Committee , on 31 August 1940, and arranged
14100-707: The major cities of Birmingham , Manchester , Liverpool , Glasgow and Edinburgh , and through services to Holyhead for connecting ferries to Dublin are operated by Avanti West Coast . Overnight sleeper services to Scotland are provided by the Caledonian Sleeper . London Northwestern Railway provide commuter and regional services to the West Midlands, whilst the Lioness line of the London Overground provides local suburban services in
14241-501: The members of the Tizard Mission brought one to America in 1940, they carried the most valuable cargo ever brought to our [i.e., U.S.] shores. It sparked the whole development of microwave radar". The Tizard mission caused the foundation of the MIT Radiation Lab in October 1940, which became one of the largest wartime projects, employing nearly 4,000 people at its peak. The mission also opened up channels of communication for
14382-528: The merger of the British army and navy air services into the Royal Air Force (RAF). Its first Chief of the Air Staff , Hugh Trenchard , was among the military strategists in the 1920s, like Giulio Douhet , who saw air warfare as a new way to overcome the bloody stalemate of trench warfare . Interception was expected to be nearly impossible, with fighter planes no faster than bombers. Their slogan
14523-455: The middle of the Great Hall was removed. Ticket machines were modernised. By this time the Arch was surrounded by property development and kiosks and in need of restoration. British Railways announced that Euston would be rebuilt to accommodate the electrification of the West Coast Main Line in 1959. Because of the restricted layout of track and tunnels at the northern end, enlargement only could be accomplished by expanding southwards over
14664-468: The notice and implemented measures to better manage passenger traffic flows and overcrowding. In October 2024, London TravelWatch warned that passengers at Euston are being put in danger when the station becomes severely overcrowded during periods of disruption to services. Transport Secretary Louise Haigh subsequently asked Network Rail to declutter the station concourse and improve how it handles train announcements. Network Rail reacted by switching off
14805-521: The other services", according to an April 1944 German account of their military mission. Göring was convinced that strategic bombing could win objectives that were beyond the army and navy, and gain political advantages in the Third Reich for the Luftwaffe and himself. He expected air warfare to decisively force Britain to negotiate, as all in the OKW hoped, and the Luftwaffe took little interest in planning to support an invasion. The Luftwaffe faced
14946-425: The period of large-scale night attacks known as the Blitz , that lasted from 7 September 1940 to 11 May 1941. German historians do not follow this subdivision and regard the battle as a single campaign lasting from July 1940 to May 1941, including the Blitz. The primary objective of the German forces was to compel Britain to agree to a negotiated peace settlement . In July 1940, the air and sea blockade began, with
15087-412: The possibility of an invasion he called Operation Sea Lion , unless the British agreed to negotiations. The Luftwaffe reported that it would be ready to launch its major attack early in August. The Kriegsmarine Commander-in-Chief, Grand Admiral Erich Raeder , continued to highlight the impracticality of these plans and said sea invasion could not take place before early 1941. Hitler now argued that Britain
15228-707: The rebuilding was scrapped after a government White Paper was released in 1963 that restricted the rate of commercial office development in London. In 1966, a " Whites only " recruitment policy for guards at the station was dropped after the case of Asquith Xavier , a migrant from Dominica , who had been refused promotion on those grounds, was raised in Parliament and taken up by the Secretary of State for Transport, Barbara Castle . A second development phase by Richard Seifert & Partners began in 1979, adding 405,000 square feet (37,600 m ) of office space along
15369-400: The same time, the station roof was raised by 6 feet (1.8 m) to accommodate smoke from the engines. The continued growth of long-distance railway traffic led to major expansion along the station's west side starting in 1887. It involved rerouting Cardington Street over part of the burial ground (later St James's Gardens) of St James's Church, Piccadilly , which was located some way from
15510-440: The south and west to create new sufficiently long platforms. These plans involved a complete reconstruction, involving the demolition of 220 Camden Council flats, with half the station providing conventional train services and the new half high-speed trains. The Command Paper suggested rebuilding the Arch, and included an artist's impression. The station is to have seven new platforms dropped from an original planned eight, taking
15651-432: The station frontage in the form of three low-rise towers overlooking Melton Street and Eversholt Street. The offices were occupied by British Rail , then by Railtrack, and by Network Rail which has now vacated all but a small portion of one of the towers. The offices are in a functional style; the main facing material is polished dark stone, complemented by white tiles, exposed concrete and plain glazing. The station has
15792-622: The station, but had been relocated during the original station construction and in 2019 was found behind the station during excavation work for the HS2 line. In March 2010 the Secretary of State for Transport , Andrew Adonis announced that Euston was the preferred southern terminus of the planned High Speed 2 line, which would connect to a newly built station near Curzon Street and Fazeley Street in Birmingham. This would require expansion to
15933-540: The terminus of HS1 to the Continent. Euston's 1960s style of architecture has been described as "a dingy, grey, horizontal nothingness" and a reflection of "the tawdry glamour of its time", entirely lacking in "the sense of occasion, of adventure, that the great Victorian termini gave to the traveller". Writing in The Times , Richard Morrison stated that "even by the bleak standards of Sixties architecture, Euston
16074-636: The terminus of the Great Western Main Line . In the event, the GWR chose to build their own terminus at Paddington . The spare land was instead used for more platforms for ever expanding services as the railway network grew. The station building, designed by the classically trained architect Philip Hardwick , had a 200-foot-long (61 m) trainshed by structural engineer Charles Fox . It had two 420-foot-long (130 m) platforms, one each for departures and arrival. The main entrance portico,
16215-666: The total to 23, with 10 dedicated to HS2 services and 13 to conventional lines at a low level. The flats demolished for the extension would be replaced by significant building work above. The Underground station would be rebuilt and connected to adjacent Euston Square station. As part of the extension beyond Birmingham, the Mayor of London's office believed it will be necessary to build the proposed Crossrail 2 line via Euston to relieve 10,000 extra passengers forecast to arrive during an average day. To relieve pressure on Euston during and after rebuilding for High Speed 2, HS2 Ltd has proposed
16356-579: The tradition of British diplomacy, to secure British independence without war. On 20 May, Halifax secretly requested a Swedish businessman to make contact with Göring to open negotiations. Shortly afterwards, in the May 1940 War Cabinet Crisis , Halifax argued for negotiations involving the Italians, but this was rejected by Churchill with majority support. An approach made through the Swedish ambassador on 22 June
16497-427: The use of an Emergency Boost Override . In September 1940, the more powerful Mk IIa series 1 Hurricanes started entering service in small numbers. This version was capable of a maximum speed of 342 mph (550 km/h), some 20 mph more than the original (non-Rotol) Mk I, though it was still 15 to 20 mph slower than a Bf 109 (depending on altitude). The performance of the Spitfire over Dunkirk came as
16638-441: The war was the first major German defeat in the Second World War. The Battle of Britain takes its name from the speech given by Prime Minister Winston Churchill to the House of Commons on 18 June: "What General Weygand called the 'Battle of France' is over. I expect that the Battle of Britain is about to begin." Strategic bombing during World War I introduced air attacks intended to panic civilian targets and led in 1918 to
16779-448: The war. He sought to initiate cooperation with the United States to further the research, development and production of radar and other technologies. The U.S. was neutral and, in many quarters, unwilling to become involved in the war, but had greater resources for development and production, which Britain sought to use. The information provided by the British delegation was subject to carefully vetted security procedures, and contained some of
16920-411: The works. The project was shelved indefinitely because of World War II . The station was damaged several times during the Blitz in 1940. Part of the Great Hall's roof was destroyed, and a bomb landed between platforms 2 and 3, destroying offices and part of the hotel. Passengers considered Euston to be squalid and covered in soot and it was restored and redecorated in 1953, when an enquiry kiosk in
17061-687: Was a military campaign of the Second World War , in which the Royal Air Force (RAF) and the Fleet Air Arm (FAA) of the Royal Navy defended the United Kingdom (UK) against large-scale attacks by Nazi Germany 's air force, the Luftwaffe . It was the first major military campaign fought entirely by air forces. The British officially recognise the battle's duration as being from 10 July until 31 October 1940, which overlaps
17202-514: Was chosen in 1831 by George and Robert Stephenson , engineers of the L&;BR. The area was mostly farmland at the edge of the expanding city, and adjacent to the New Road (now Euston Road ), which had caused urban development. The name Euston came from Euston Hall , the seat of the duke of Grafton , who owned the locality. The station and railway have been owned by the L&BR (1837–1846),
17343-416: Was designed by Philip Hardwick and built by William Cubitt , with a distinctive arch over the station entrance. The station opened as the terminus of the London and Birmingham Railway (L&BR) on 20 July 1837. Euston was expanded after the L&BR was amalgamated with other companies to form the London and North Western Railway , and the original sheds were replaced by the Great Hall in 1849. Capacity
17484-622: Was desperately short of trained pilots and aircraft. Churchill sent fighter squadrons, the Air Component of the British Expeditionary Force , to support operations in France, where the RAF suffered heavy losses. This was despite the objections of its commander Hugh Dowding that the diversion of his forces would leave home defences under-strength. After the evacuation of British and French soldiers from Dunkirk and
17625-560: Was forbidden a military air force by the 1919 Treaty of Versailles , and therefore air crew were trained by means of civilian and sport flying . Following a 1923 memorandum, the Deutsche Luft Hansa airline developed designs for aircraft such as the Junkers Ju 52 , which could carry passengers and freight, but also be readily adapted into a bomber. In 1926, the secret Lipetsk fighter-pilot school began training Germans in
17766-526: Was holding out in hope of assistance from Russia, and the Soviet Union was to be invaded by mid 1941. Göring met his air fleet commanders, and on 24 July issued "Tasks and Goals" of firstly gaining air supremacy, secondly protecting invasion forces and attacking the Royal Navy's ships. Thirdly, they were to blockade imports, bombing harbours and stores of supplies. Hitler's "Directive No. 17 – For
17907-500: Was increased throughout the 19th century from two platforms to fifteen. The station was controversially rebuilt in the mid-1960s when the Arch and the Great Hall were demolished to accommodate the electrified West Coast Main Line, and the revamped station still attracts criticism over its architecture. Euston is to be the London terminus for the planned High Speed 2 railway and the station is being redeveloped to accommodate it. The station
18048-529: Was introduced to the station in 2015 to help people with visual impairment to navigate the station. In September 2023, the Office of Rail and Road issued Network Rail with an improvement notice in relation to its failure to put in place effective measures to tackle overcrowding. Network Rail admitted that the station was designed for a different era and that "the passenger experience at Euston remains uncomfortable at times". The Office of Rail and Road declared in December 2023 that Network Rail had complied with
18189-585: Was no time to amend the drawings. And No 12 with 8 holes was chosen for the Tizard Mission. So Bell Labs chose to copy the sample; and while early British magnetrons had six cavities the American ones had eight cavities. Bowen stayed in America, and a few days later, at the General Electric labs in New Jersey, he showed the Americans that the magnetron worked. The Bell Telephone Company was given
18330-402: Was opened by Queen Elizabeth II on 14 October 1968. The station is a long, low structure, 200 feet (61 m) wide and 150 feet (46 m) deep under a 36-foot (11 m) high roof. It opened with integrated automatic ticket facilities and a range of shops; the first of its kind for any British station. The plan to construct offices above the station whose rents would help fund the cost of
18471-546: Was probably the first one in the world with all- wrought iron roof trusses . The first railway hotels in London were built at Euston. Two hotels designed by Hardwick opened in 1839 on either side of the Arch; the Victoria on the west had basic facilities while the Euston on the east was designed for first-class passengers. Between 1838 and 1841, parcel handling grew from 2,700 parcels a month to 52,000. By 1845, 140 staff were employed but trains began to run late because of
18612-476: Was received in silence, but he did not suggest negotiations and this was perceived as being effectively an ultimatum by the British government, which rejected the offer. Halifax kept trying to arrange peace until he was sent to Washington in December as ambassador, and in January 1941 Hitler expressed continued interest in negotiating peace with Britain. A May 1939 planning exercise by Luftflotte 3 found that
18753-422: Was redecorated and refurbished between 1915 and 1916 and again in 1927. The station's ownership was transferred to the London, Midland and Scottish Railway (LMS) in the 1923 grouping . Apart from the lodges on Euston Road and statues now on the forecourt, few relics of the old station survive. The National Railway Museum 's collection at York includes Edward Hodges Baily 's statue of George Stephenson from
18894-569: Was rejected by a provisional committee, and a proposal to end the line at Maiden Lane was rejected by the House of Lords in 1832. A terminus at Camden Town , announced by Stephenson the following year, received royal assent on 6 May, before an extension was approved in 1834, allowing the line to reach Euston Grove where the original station was built by William Cubitt . Initial services were three trains to and from Boxmoor with journeys taking just over an hour. On 9 April 1838, they were extended to
19035-651: Was reported to Hitler, making peace negotiations seem feasible. Throughout July, as the battle started, the Germans made wider attempts to find a diplomatic solution. On 2 July, the day the armed forces were asked to start preliminary planning for an invasion, Hitler got von Ribbentrop to draft a speech offering peace negotiations. On 19 July Hitler made this speech to the German Parliament in Berlin, appealing "to reason and common sense", and said he could "see no reason why this war should go on". His sombre conclusion
19176-690: Was sent to America with Bowen, where it was shown on 19 September 1940 in Alfred Loomis’ apartment. The American NDRC Microwave Committee was stunned at the power level produced. However, the Bell Labs director was upset when it was X-rayed and had eight holes rather than the six holes shown on the GEC plans. After contacting (via the transatlantic cable) Dr Eric Megaw , GEC’s vacuum tube expert Megaw recalled that when he had asked for 12 prototypes he said make 10 with 6 holes, one with 7 and one with 8; there
19317-467: Was that the bomber will always get through , and that the only defence was a deterrent bomber force capable of matching retaliation. Predictions were made that a bomber offensive would quickly cause thousands of deaths and civilian hysteria leading to capitulation. However, widespread pacifism following the horrors of the First World War contributed to a reluctance to provide resources. Germany
19458-546: Was that destruction of enemy armed forces was of primary importance. The RAF responded to Luftwaffe developments with its 1934 Expansion Plan A rearmament scheme, and in 1936 it was restructured into Bomber Command , Coastal Command , Training Command and Fighter Command . The last was under Hugh Dowding , who opposed the doctrine that bombers were unstoppable: the invention of radar at that time could allow early detection, and prototype monoplane fighters were significantly faster. Priorities were disputed, but in December 1937,
19599-467: Was the earliest possible date and proposed postponement until the following year, but Hitler preferred September. He then told von Brauchitsch and Halder that he would decide on the landing operation eight to fourteen days after the air attack began. On 1 August, he issued Directive No. 17 for intensified air and sea warfare, to begin with Adlertag on or after 5 August, subject to weather, keeping options open for negotiated peace or blockade and siege. Under
19740-428: Was to incapacitate the RAF so much that the UK would feel open to air attack, and would begin peace negotiations. It was also to isolate the UK and damage war production, beginning an effective blockade. Following severe Luftwaffe losses, Hitler agreed at a 14 September OKW conference that the air campaign was to intensify regardless of invasion plans. On 16 September, Göring gave the order for this change in strategy, to
19881-497: Was to increase attacks on shipping, economic targets and the RAF: air attacks and food shortages were expected to break morale and lead to capitulation. Destruction of the RAF was the first priority, and invasion would be a last resort. Göring's operational directive issued the same day ordered the destruction of the RAF to clear the way for attacks cutting off seaborne supplies to Britain. It made no mention of invasion. In November 1939,
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