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105-804: The CA-11 Woomera was a production development of the earlier CA-4 Wackett Bomber prototype, and was an Australian torpedo and dive bomber aircraft that was designed and constructed by the Commonwealth Aircraft Corporation ( CAC ) during World War II . The order for the Woomera was cancelled before it became operational with the Royal Australian Air Force (RAAF). In early 1939, the Australian Government ordered large numbers of Bristol Beaufort bombers, with major components to be built in

210-475: A 3 mi (4.8 km) radius from point of aim in any case. The United States Army Air Forces adopted a policy of daylight precision bombing for greater accuracy as, for example, during the Schweinfurt raids. That doctrine, based on the erroneous supposition that bombers could adequately defend themselves against air attack, entailed much higher American losses until long-range fighter escorts (e.g.

315-581: A combined-arms attack which would be developed to a significant degree by Germany , and which contributed much to the success of the Wehrmacht during the first four years (1939–42) of World War II. The Luftwaffe became a major element of the German blitzkrieg . Some leading theorists of strategic air warfare , namely strategic bombing during this period were the Italian Giulio Douhet ,

420-625: A fuel leak in the port Pratt & Whitney R-1830 engine. As the problem worsened he attempted to shut down the engine, feathering the propeller; however, the actuation of the feathering switch caused an explosion and uncontrollable fire. The three-man crew subsequently attempted evacuation at 1,000 feet (300 m), yet only Harper succeeded in parachuting free, while the CAC test pilot Jim Carter and power plant group engineer Lionel Dudgeon were both killed. The airframe subsequently impacted 3 miles (4.8 km) south-west of Kilmore, Victoria . The wreckage

525-425: A high proportion of incendiary devices , to bomb the target region indiscriminately—to kill war workers, destroy materiel , and demoralize the enemy. In high enough concentration, it was capable of producing a firestorm . The high explosives were often delay-action bombs intended to kill or intimidate those fighting the fires caused by incendiaries. At first this required multiple aircraft, often returning to

630-539: A larger and more streamlined form of airship designed by German Count Ferdinand von Zeppelin , were outfitted to carry bombs to attack targets at long range. These were the first long range, strategic bombers. Although the German air arm was strong, with a total of 123 airships by the end of the war, they were vulnerable to attack and engine failure, as well as navigational issues. German airships inflicted little damage on all 51 raids, with 557 Britons killed and 1,358 injured. The German Navy lost 53 of its 73 airships, and

735-483: A major limitation, combined with the desire for accuracy and other operational factors, bomber designs tended to be tailored to specific roles. By the start of the war this included: Bombers of this era were not intended to attack other aircraft although most were fitted with defensive weapons. World War II saw the beginning of the widespread use of high speed bombers which began to minimize defensive weaponry in order to attain higher speed. Some smaller designs were used as

840-538: A means of evading detection and attack. Designs such as the English Electric Canberra could fly faster or higher than contemporary fighters. When surface-to-air missiles became capable of hitting high-flying bombers, bombers were flown at low altitudes to evade radar detection and interception. Once "stand off" nuclear weapon designs were developed, bombers did not need to pass over the target to make an attack; they could fire and turn away to escape

945-431: A means of evading detection and attack. With the advent of ICBMs the role of the bomber was brought to a more tactical focus in close air support roles, and a focus on stealth technology for strategic bombers. Strategic bombing is done by heavy bombers primarily designed for long-range bombing missions against strategic targets such as supply bases, bridges, factories, shipyards, and cities themselves, to diminish

1050-472: A military strategy proved to be an effective and efficient way for the British to police their Middle East protectorates in the 1920s. Fewer men were required as compared to ground forces. Pre-war planners, on the whole, vastly overestimated the damage bombers could do, and underestimated the resilience of civilian populations. Jingoistic national pride played a major role: for example, at a time when Germany

1155-464: A new one. This was completed on 1 April 1945 and started instead with the usual euphemism used when referring to strategic bombing: "It seems to me that the moment has come when the question of the so called 'area-bombing' of German cities should be reviewed from the point of view of our own interests....". Many strategic bombing campaigns and individual raids of aerial warfare have been described as "terror bombing" by commentators and historians since

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1260-409: A prototype of the CAC design, even before the Royal Australian Air Force had expressed a view about the machine. This prototype CA-4 Wackett Bomber took to the air on 19 September 1941. The CA-4 was a low-wing, twin-engined, multi-role bomber with a crew of three. It was armed with four nose-mounted .303 calibre machine guns and two remote-controlled twin machine-guns barbette mounted at the rear of

1365-491: A raid in the afternoon of June 22, 1916, the pilots used outdated maps and bombed the location of the abandoned railway station, where a circus tent was placed, killing 120 persons, most of them children. The British also stepped up their strategic bombing campaign. In late 1915, the order was given for attacks on German industrial targets, and the 41st Wing was formed from units of the RNAS and Royal Flying Corps . The RNAS took to

1470-504: A result, bomb loads were regularly dropped "blind" using dead-reckoning methods little different from those used by the RAF night bombers. In addition, only the leading bomber in a formation actually utilized the Norden sight, the rest of the formation dropping their bombs only when they saw the lead aircraft's bombload falling away. Since even a very tight bomber formation could cover a vast area,

1575-576: A variety of locations, including railway workshops, and in doing so it by-passed the local aircraft company, the Commonwealth Aircraft Corporation. CAC, under Sir Lawrence Wackett , began work on its own design, hoping to out-perform the Beaufort by building a machine that could serve as both a torpedo-bomber and dive bomber. To keep down weight, Wackett dispensed with traditional self-sealing fuel tanks and opted to make

1680-411: A young RAF squadron commander (later nicknamed "Bomber" ), reported after a mission in 1924, "The Arab and Kurd now know what real bombing means, in casualties and damage. They know that within 45 minutes a full-sized village can be practically wiped out and a third of its inhabitants killed or injured". On an official level, RAF directives stressed: In these attacks, endeavour should be made to spare

1785-488: Is typically assigned to smaller aircraft operating at shorter ranges, typically near the troops on the ground or against enemy shipping. This role is filled by tactical bomber class, which crosses and blurs with various other aircraft categories: light bombers , medium bombers , dive bombers , interdictors , fighter-bombers , attack aircraft , multirole combat aircraft , and others. The first use of an air-dropped bomb (actually four hand grenades specially manufactured by

1890-584: The Allies of World War II , have preferred to use euphemisms such as "will to resist" and "morale bombings". The theoretical distinction between tactical and strategic air warfare was developed between the two world wars. Some leading theorists of strategic air warfare during this period were the Italian Giulio Douhet , the Trenchard school in the United Kingdom, and General Billy Mitchell in

1995-522: The Avro Lancaster , and 20,000 lb (9,000 kg) B-29 Superfortress , with some specialized aircraft, such as the 'Special B' Avro Lancaster carrying the 22,000 lb (10,000 kg) Grand Slam . During the first year of the war in Europe, strategic bombing was developed through trial and error. The Luftwaffe had been attacking both civilian and military targets from the first day of

2100-799: The Bristol Aeroplane Company . They were fitted with a prismatic Bombsight in the front cockpit and a cylindrical bomb carrier in the lower forward fuselage capable of carrying twelve 10 lb (4.5 kg) bombs, which could be dropped singly or as a salvo as required. The aircraft was purchased for use both by the Royal Naval Air Service and the Royal Flying Corps (RFC), and three T.B.8s, that were being displayed in Paris during December 1913 fitted with bombing equipment, were sent to France following

2205-551: The Handley Page Type O ; the majority of bombing was done by single-engined biplanes with one or two crew members flying short distances to attack enemy lines and immediate hinterland. As the effectiveness of a bomber was dependent on the weight and accuracy of its bomb load, ever larger bombers were developed starting in World War I, while considerable money was spent developing suitable bombsights. With engine power as

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2310-597: The Imperial Japanese Army Air Service frequently used strategic bombing over Singaporean, Burmese, and Chinese cities such as Shanghai , Guangzhou , Nanjing , Chongqing , Singapore , and Rangoon . However, the Japanese military in most places advanced quickly enough that a strategic bombing campaign was unnecessary, and the Japanese aircraft industry was incapable of producing truly strategic bombers in any event. In those places where it

2415-569: The Mustang ) became available. Conditions in the European theatre made it very difficult to achieve the accuracy achieved using the exceptional and top-secret Norden optical bombsight in the clear skies over the desert bombing ranges of Nevada and California. Raids over Europe commonly took place in conditions of very poor visibility, with targets partly or wholly obscured by thick cloud, smokescreens, or smoke from fires started by previous raids. As

2520-546: The Second Sino-Japanese War —they were ineffective. Commentators observed the failures and some air forces, such as the Luftwaffe , concentrated their efforts upon direct support of the troops. Terror bombing is a term used for aerial attacks planned to weaken or break enemy morale. Use of the term to refer to aerial attacks implies the attacks are criminal according to the law of war , or if within

2625-574: The Swedish Air Force dropped bombs on a forest fire, snuffing out flames with the aid of the blast waves. The fires had been raging in an area contaminated with unexploded ordnance , rendering them difficult to extinguish for firefighters. Strategic bombing Strategic bombing is a systematically organized and executed attack from the air which can utilize strategic bombers , long- or medium-range missiles , or nuclear-armed fighter-bomber aircraft to attack targets deemed vital to

2730-641: The Turkish railway station of Karağaç (near the besieged Edirne ) from an Albatros F.2 aircraft piloted by Radul Milkov , during the First Balkan War . This is deemed to be the first use of an aircraft as a bomber. The first heavier-than-air aircraft purposely designed for bombing were the Italian Caproni Ca 30 and British Bristol T.B.8 , both of 1913. The Bristol T.B.8 was an early British single engined biplane built by

2835-966: The V bomber force was phased out; the last of which left service in 1983. The French Mirage IV bomber version was retired in 1996, although the Mirage 2000N and the Rafale have taken on this role. The only other nation that fields strategic bombing forces is China , which has a number of Xian H-6s . Currently, only the United States Air Force , the Russian Aerospace Forces ' Long-Range Aviation command, and China's People's Liberation Army Air Force operate strategic heavy bombers. Other air forces have transitioned away from dedicated bombers in favor of multirole combat aircraft . At present, these air forces are each developing stealth replacements for their legacy bomber fleets,

2940-545: The appeasement of Hitler in the late 1930s. During the Spanish Civil War , the bombing of Guernica by German aviators including the Condor Legion , under Nationalist command, resulted in its near destruction. Casualties were estimated to be between 500 and 1500. Though this figure was relatively small, aerial bombers and their weaponry were continually improving—already suggesting the devastation that

3045-509: The 1950s-designed B-52s are projected to remain in use until the 2040s. Similarly, the Soviet Union used the intermediate-range Tu-22M 'Backfire' in the 1970s, but their Mach 3 bomber project stalled. The Mach 2 Tu-160 'Blackjack' was built only in tiny numbers, leaving the 1950s Tupolev Tu-16 and Tu-95 'Bear' heavy bombers to continue being used into the 21st century. The British strategic bombing force largely came to an end when

3150-629: The Allied Armies." When the war started, bombing was very crude (hand-held bombs were thrown over the side) yet by the end of the war long-range bombers equipped with complex mechanical bombing computers were being built, designed to carry large loads to destroy enemy industrial targets. The most important bombers used in World War I were the French Breguet 14 , British de Havilland DH-4 , German Albatros C.III and Russian Sikorsky Ilya Muromets . The Russian Sikorsky Ilya Muromets ,

3255-788: The Allied campaign against Germany only really succeeded when the Allies began targeting oil refineries and transportation in the last year of the war. At the same time, the strategic bombing of Germany was used as a morale booster for the Allies in the period before the land war resumed in Western Europe in June 1944. In the Asiatic-Pacific Theater , the Imperial Japanese Navy Air Service and

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3360-559: The Allied news media did the same. However, at a SHAEF press conference on 16 February 1945, two days after the bombing of Dresden , British Air Commodore Colin McKay Grierson replied to a question by one of the journalists that the primary target of the bombing had been on communications to prevent the Germans from moving military supplies and to stop movement in all directions if possible. He then added in an offhand remark that

3465-560: The Belgian city of Liège , killing nine civilians. The second attack was on the night of 24–25 August 1914, when eight bombs were dropped from a German airship onto the Belgian city of Antwerp . The first effective strategic bombing was pioneered by the Royal Naval Air Service (RNAS) in 1914. The mission was to attack the Zeppelin production lines and their sheds at Cologne (Köln) and Düsseldorf . Led by Charles Rumney Samson ,

3570-560: The British and Americans (who started the war with predominantly similarly sized bombers) developed their strategic force based upon much larger four-engined bombers for their strategic campaigns. The payload carried by these planes ranged from 4,000 lb (1,800 kg) for the B-17 Flying Fortress on long-range missions, to 8,000 lb (3,600 kg) for the B-24 Liberator , 14,000 lb (6,400 kg) for

3675-603: The British be cowed into making peace. At first the Luftwaffe raids took place in daylight, but changed to night bombing attacks when losses became unsustainable. The RAF, who had preferred precision bombing, also switched to night bombing, also due to excessive losses. Before the Rotterdam Blitz on 14 May 1940 the British restricted themselves to tactical bombing west of the Rhine and naval installations. The day after

3780-658: The CA-4 became the CA-11 Woomera. Faced with the crisis caused by the Japanese entry into the war in December 1941, the RAAF accepted the design even before testing was complete, and ordered 105 examples of the CAC bomber on 8 March 1942. However, after the loss of the CA-4 prototype, the redesigned CA-11 did not fly until June 1944. By the time production was due to commence, the dive-bombing concept had fallen into disfavour and

3885-648: The Eastern England towns of Great Yarmouth , Sheringham , King's Lynn , and the surrounding villages. In all, four people were killed and sixteen injured, and monetary damage was estimated at £7,740 (about US$ 36,000 at the time). German airships also bombed on other fronts, for example in January 1915 on Liepāja in Latvia. In 1915 there were 19 more raids, in which 37 tons of bombs were dropped, killing 181 people and injuring 455. Raids continued in 1916. London

3990-604: The German Army lost 26 of its 50 ships. The Caproni Ca 30 was built by Gianni Caproni in Italy . It was a twin-boom biplane with three 67 kW (80 hp) Gnome rotary engines and first flew in October 1914 . Test flights revealed power to be insufficient and the engine layout unworkable, and Caproni soon adopted a more conventional approach installing three 81 kW (110 hp) Fiat A.10s . The improved design

4095-534: The German Naval Airship Department. By the end of the war, 51 raids had been undertaken, in which 5,806 bombs were dropped, killing 557 people and injuring 1,358. These raids caused only minor hampering of wartime production, by later standards. A much greater impact was the diversion of twelve aircraft squadrons, many guns, and over 10,000 men to air defenses. The raids generated a wave of hysteria, partially caused by media. This revealed

4200-653: The Italian naval arsenal) was carried out by Italian Second Lieutenant Giulio Gavotti on 1 November 1911 during the Italo-Turkish war in Libya – although his plane was not designed for the task of bombing, and his improvised attacks on Ottoman positions had little impact. These picric acid -filled steel spheres were nicknamed "ballerinas" from the fluttering fabric ribbons attached. On 16 October 1912, Bulgarian observer Prodan Tarakchiev dropped two of those bombs on

4305-530: The Japanese island of Iwo Jima further enhanced the capabilities that the Americans possessed in their strategic bombing campaign. High-explosive and incendiary bombs were used against Japan to devastating effect, with greater indiscriminate loss of life in the firebombing of Tokyo on March 9–10, 1945 than was caused either by the Dresden mission , or the atomic bombs dropped on Hiroshima or Nagasaki . Unlike

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4410-629: The RAAF was filling the light bomber/reconnaissance/strike role with British-designed Bristol Beaufighters (which were being made in Australia by the Department of Aircraft Production ); US-made bombers, including the B-25 Mitchell , had also become available. Consequently, the original Woomera order was reduced from 105 to 20. After the first CA-11 flew, the whole program was cancelled and the production capacity set aside for Woomeras at CAC

4515-981: The Rotterdam Blitz a new directive was issued to the RAF to attack targets in the Ruhr , including oil plants and other civilian industrial targets which aided the German war effort, such as blast furnaces that at night were self-illuminating. After the Butt Report (released in September 1941) proved the inadequacy of RAF Bomber Command training methods and equipment, the RAF adopted an area-attack strategy, by which it hoped to impede Germany's war production, her powers of resistance (by destroying resources and forcing Germany to divert resources from her front lines to defend her air space), and her morale. The RAF dramatically improved its navigation so that on average its bombs hit closer to target. Accuracy never exceeded

4620-537: The Spanish Nationalists, generally agreed. The strategic bombing conducted in World War II was unlike any before. The campaigns conducted in Europe and Asia could involve aircraft dropping thousands of tons of conventional bombs or a nuclear weapon over a single city. Area bombardment came to prominence during World War II with the use of large numbers of unguided gravity bombs , often with

4725-748: The Trenchard school in Great Britain, and General Billy Mitchell in the United States. These theorists thought that aerial bombardment of the enemy's homeland would be an important part of future wars. Not only would such attacks weaken the enemy by destroying important military infrastructure, they would also break the morale of the civilian population, forcing their government to capitulate. Although area bombing theorists acknowledged that measures could be taken to defend against bombers—using fighter planes and anti-aircraft artillery —the maxim of

4830-544: The USAAF's strategic bombing campaign in Europe, with its avowed (if unachievable) objective of precision bombing of strategic targets, the bombing of Japanese cities involved the deliberate targeting of residential zones from the outset. Bomb loads included very high proportions of incendiaries, with the intention of igniting the highly combustible wooden houses common in Japanese cities and thereby generating firestorms. The final development of strategic bombing in World War II

4935-828: The USAF with the Northrop Grumman B-21 , the Russian Aerospace Forces with the PAK DA , and the PLAAF with the Xian H-20 . As of 2021 , the B-21 is expected to enter service by 2026–2027. The B-21 would be capable of loitering near target areas for extended periods of time. Occasionally, military aircraft have been used to bomb ice jams with limited success as part of an effort to clear them. In 2018,

5040-521: The United States, where excerpts from his book The Command of the Air (1921) were published. These visions of cities laid waste by bombing also gripped the popular imagination and found expression in novels such as Douhet's The War of 19-- (1930) and H. G. Wells 's The Shape of Things to Come (1933) (filmed by Alexander Korda as Things to Come (1936)). Douhet's proposals were hugely influential among air force enthusiasts, arguing as they did that

5145-470: The United States. These theorists were highly influential, both on the military justification for an independent air force (such as the Royal Air Force ) and in influencing political thoughts on a future war as exemplified by Stanley Baldwin 's 1932 comment that the bomber will always get through . One of the aims of war is to demoralize the enemy; facing continual death and destruction may make

5250-558: The War as the German air arm was forced to concentrate its resources on a defensive strategy. Notably, bombing campaigns formed a part of the British offensive at the Battle of Neuve Chapelle in 1915, with Royal Flying Corps squadrons attacking German railway stations in an attempt to hinder the logistical supply of the German army . The early, improvised attempts at bombing that characterized

5355-472: The Yemeni side, were 65 killed or wounded (one RAF pilot was killed and one airman wounded). Between the wars the RAF conducted 26 separate air operations within the Aden Protectorate. The majority were conducted in response to persistent banditry or to restore the Government's authority. Excluding operations against Yemeni forces—which had effectively ceased by 1934—a total of twelve deaths were attributed to air attacks conducted between 1919 and 1939. Bombing as

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5460-418: The acceptance of the provisions of the Joint Declaration of the Powers. Nuclear weapons defined strategic bombing during the Cold War . The age of the massive strategic bombing campaign had come to an end. It was replaced by more devastating attacks using improved targeting and weapons technology. Strategic bombing by the Great Powers also became politically indefensible. The political fallout resulting from

5565-423: The air raids with a series of night infiltration bombings of ADD airfields near Leningrad . Strategic bombing in Europe never reached the decisive completeness the American campaign against Japan achieved, helped in part by the fragility of Japanese housing , which was particularly vulnerable to firebombing through the use of incendiary devices . The destruction of German infrastructure became apparent, but

5670-511: The basis for night fighters . A number of fighters, such as the Hawker Hurricane were used as ground attack aircraft, replacing earlier conventional light bombers that proved unable to defend themselves while carrying a useful bomb load. At the start of the Cold War, bombers were the only means of carrying nuclear weapons to enemy targets, and had the role of deterrence . With the advent of guided air-to-air missiles, bombers needed to avoid interception. High-speed and high-altitude flying became

5775-436: The blast. Nuclear strike aircraft were generally finished in bare metal or anti-flash white to minimize absorption of thermal radiation from the flash of a nuclear explosion . The need to drop conventional bombs remained in conflicts with non-nuclear powers, such as the Vietnam War or Malayan Emergency . The development of large strategic bombers stagnated in the later part of the Cold War because of spiraling costs and

5880-521: The bombing air arm was the most important, powerful, and invulnerable part of any military. He envisaged future wars as lasting a matter of a few weeks. While each opposing Army and Navy fought an inglorious holding campaign, the respective Air Forces would dismantle their enemies' country, and if one side did not rapidly surrender, both would be so weak after the first few days that the war would effectively cease. Fighter aircraft would be relegated to spotting patrols but would be essentially powerless to resist

5985-507: The bombing of railways, trains, canals, and roads more harmful to production than attacks on factories themselves, Sir Roy Fedden (in his report on a postwar British scientific intelligence mission) calling it "fatal" and saying it reduced aero-engine production by two thirds (from a maximum output of 5,000 to 7,000 a month). Strategic bombing was a way of taking the war into Europe while Allied ground forces were unable to do so. Between them, Allied air forces claimed to be able to bomb "around

6090-444: The civilian population , thought to be demoralizing to the enemy, seemed to have the opposite effect. E. B. Strauss surmised, "Observers state that one of the most remarkable effects of the bombing of open towns in Government Spain had been the welding together into a formidable fighting force of groups of political factions who were previously at each other's throats...", a sentiment with which Hitler 's Luftwaffe , supporting

6195-427: The clock". In fact, few targets were ever hit by British and American forces the same day, the strategic isolation of Normandy on D-Day and the bombing of Dresden in February 1945 being exceptions rather than the rule. There were generally no coordinated plans for the around-the-clock bombing of any target. In some cases, single missions have been considered to constitute strategic bombing. The bombing of Peenemünde

6300-601: The deaths of civilians may also be described as such, or if the attacks involve fighters strafing they may be labelled "terror attacks". German propaganda minister Joseph Goebbels and other high-ranking officials of Nazi Germany frequently described attacks by the Royal Air Force (RAF) and the United States Army Air Forces (USAAF) during their strategic bombing campaigns as Terrorangriffe —terror attacks. The Allied governments usually described their bombing of cities with euphemisms such as area bombing (RAF) or precision bombing (USAAF), and for most of World War II

6405-410: The detachment radius) of communications, their indifference to obstacles, and the unlikelihood of casualties to air personnel combine to encourage their use offensively more often than the occasion warrants. In British strikes over Yemen in over a six-month period, sixty tons of bombs were dropped in over 1,200 cumulative flying hours. By August 1928, total losses in ground fighting and air attack, on

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6510-426: The development of the Intercontinental ballistic missile (ICBM) – which was felt to have similar deterrent value while being impossible to intercept. Because of this, the United States Air Force XB-70 Valkyrie program was cancelled in the early 1960s; the later B-1B Lancer and B-2 Spirit aircraft entered service only after protracted political and development problems. Their high cost meant that few were built and

6615-420: The early part of the war slowly gave way to a more organized and systematic approach to strategic and tactical bombing, pioneered by various air power strategists of the Entente , especially Major Hugh Trenchard ; he was the first to advocate that there should be "... sustained [strategic bombing] attacks with a view to interrupting the enemy's railway communications ... in conjunction with the main operations of

6720-438: The end of World War II, but because the term has pejorative connotations, others have denied that such bombing campaigns and raids are examples of "terror bombing". Defensive measures against air raids include: Strategic bombing was used in World War I, though it was not understood in its present form. The first aerial bombing of a city was on 6 August 1914 when the German Army Zeppelin Z VI bombed, with artillery shells,

6825-647: The enemy's ability to wage war by limiting access to resources through crippling infrastructure or reducing industrial output. Current examples include the strategic nuclear-armed bombers: B-2 Spirit , B-52 Stratofortress , Tupolev Tu-95 'Bear' , Tupolev Tu-22M 'Backfire' and Tupolev Tu-160 "Blackjack" ; historically notable examples are the: Gotha G.IV , Avro Lancaster , Heinkel He 111 , Junkers Ju 88 , Boeing B-17 Flying Fortress , Consolidated B-24 Liberator , Boeing B-29 Superfortress , and Tupolev Tu-16 'Badger'. Tactical bombing , aimed at countering enemy military activity and in supporting offensive operations,

6930-401: The enemy's ability to wage war by limiting access to resources through crippling infrastructure, reducing industrial output, or inflicting massive civilian casualties to an extent deemed to force surrender. Tactical bombing is aimed at countering enemy military activity and in supporting offensive operations, and is typically assigned to smaller aircraft operating at shorter ranges, typically near

7035-417: The enemy's war-making capability. It is a military strategy used in total war with the goal of defeating the enemy by destroying its morale, its economic ability to produce and transport materiel to the theatres of military operations , or both. The term terror bombing is used to describe the strategic bombing of civilian targets without military value, in the hope of damaging an enemy's morale. One of

7140-533: The engine nacelles . It could carry either 500 lb (230 kg) bombs, 250 lb (110 kg) bombs or two torpedoes. It was originally powered by two Pratt & Whitney Twin Wasp R-1830-S3C3-G radials. Unfortunately, the novel fuel tanks never proved reliable, and in January 1943 the CA-4 prototype was completely destroyed in a mid-air explosion, probably due to a fuel leak. With a re-designed tail and rudder, and an improved nose armament of two 20 mm cannon and two .303 (7.7 mm) calibre machine guns,

7245-436: The first independent strategic bombing force, was created in April 1918. By the end of the war, the force had aircraft that could reach Berlin , but these were never used. Following the war, the concept of strategic bombing developed. Calculations of the number of dead to the weight of bombs would have a profound effect on the attitudes of the British authorities and population in the interwar years. As bombers became larger, it

7350-399: The following two decades fighting for survival in an environment of severe government spending constraints. In Italy, the airpower prophet General Giulio Douhet asserted the basic principle of strategic bombing was the offensive, and there was no defense against carpet bombing and poison gas attacks. The seeds of Douhet's apocalyptic predictions found fertile soil in France, Germany, and

7455-406: The force of four aircraft inflicted minor damage on the sheds. The raid was repeated a month later with slightly more success. Within a year or so, specialized aircraft and dedicated bomber squadrons were in service on both sides. These were generally used for tactical bombing; the aim was that of directly harming enemy troops, strongpoints, or equipment, usually within a relatively small distance of

7560-463: The front line. Eventually, attention turned to the possibility of causing indirect harm to the enemy by systematically attacking vital rear-area resources. The most well known attacks were those done by Zeppelins over England through the course of the war. The first aerial bombardment of English civilians was on January 19, 1915, when two Zeppelins dropped 24 fifty-kilogram (110-pound) high-explosive bombs and ineffective three-kilogram incendiaries on

7665-843: The issue and a longtime opponent of strategic bombing, Richard Stokes MP , asked questions in the House of Commons on 6 March. The controversy stirred up by the Cowan news report reached the highest levels of the British Government when on 28 March 1945 the Prime Minister, Winston Churchill , sent a memo by telegram to General Ismay for the British Chiefs of Staff and the Chief of the Air Staff in which he started with

7770-655: The laws of war are nevertheless a moral crime. According to John Algeo in Fifty Years among the New Words: A Dictionary of Neologisms 1941–1991 , the first recorded usage of "Terror bombing" in a United States publication was in a Reader's Digest article dated June 1941, a finding confirmed by the Oxford English Dictionary . Aerial attacks described as terror bombing are often long range strategic bombing raids, although attacks which result in

7875-454: The mighty bombers. In support of this theory, he argued for targeting of the civilian population as much as any military target, since a nation's morale was as important a resource as its weapons. Paradoxically, he suggested that this would actually reduce total casualties, since "The time would soon come when to put an end to horror and suffering, the people themselves, driven by the instinct of self-preservation, would rise up and demand an end to

7980-710: The only answers—a later generation would revisit this, as Mutual Assured Destruction . During the interwar period (1919–1939), the use of aerial bombing was developed as part of British foreign policy in its colonies, with Hugh Trenchard as its leading proponent, Sir Charles Portal , Sir Arthur Harris , and Sidney Bufton . The Trenchard School theories were successfully put into action in Mesopotamia (modern-day Iraq ) where RAF bombers used high-explosive bombs and strafing runs against Arab forces. The techniques of so-called "Air Control" also included target marking and locating, as well as formation flying. Arthur Harris ,

8085-421: The outbreak of war. Under the command of Charles Rumney Samson , a bombing attack on German gun batteries at Middelkerke , Belgium was executed on 25 November 1914. The dirigible, or airship, was developed in the early 20th century. Early airships were prone to disaster, but slowly the airship became more dependable, with a more rigid structure and stronger skin. Prior to the outbreak of war, Zeppelins ,

8190-412: The prospect of peace or surrender preferable. The proponents of strategic bombing between the world wars, such as General Douhet, expected that direct attacks upon an enemy country's cities by strategic bombers would lead to a rapid collapse of civilian morale so that political pressure to sue for peace would lead to a rapid conclusion. When such attacks were tried in the 1930s—in the Spanish Civil War and

8295-531: The raid also helped destroy "what is left of German morale." Howard Cowan, an Associated Press war correspondent, filed a story about the Dresden raid. The military press censor at SHAEF made a mistake and allowed the Cowan cable to go out starting with "Allied air bosses have made the long awaited decision to adopt deliberate terror bombing of great German population centers as a ruthless expedient to hasten Hitler's doom." There were follow-up newspaper editorials on

8400-448: The scatter of bombs was likely to be considerable. Add to these difficulties the disruptive effects of increasingly accurate anti-aircraft fire and head-on attacks by fighter aircraft and the theoretical accuracy of daylight bombing was often hard to achieve. Accuracy, described as "pinpoint", never exceeded the best British average of about a 3 mi (4.8 km) radius from point of aim in any case. Postwar German engineers considered

8505-576: The sentence "It seems to me that the moment has come when the question of bombing of German cities simply for the sake of increasing the terror, though under other pretexts, should be reviewed...." Under pressure from the Chiefs of Staff and in response to the views expressed by Chief of the Air Staff Sir Charles Portal , and the head of Bomber Command, Arthur "Bomber" Harris , among others, Churchill withdrew his memo and issued

8610-611: The strategic bombing in a bigger way than the RFC, who were focused on supporting the infantry actions of the Western Front. At first, the RNAS attacked the German submarines in their moorings and then steelworks further in targeting the origin of the submarines themselves. In early 1918 they operated their "round the clock" bombing raid, with lighter bombers attacking the town of Trier by day and large HP O/400s attacking by night. The Independent Force , an expanded bombing group, and

8715-502: The strategies of war is to demoralize the enemy so that peace or surrender becomes preferable to continuing the conflict. Strategic bombing has been used to this end. The phrase "terror bombing" entered the English lexicon towards the end of World War II and many strategic bombing campaigns and individual raids have been described as terror bombing by commentators and historians. Because the term has pejorative connotations, some, including

8820-508: The tactic's potential as a weapon that was of use for propagandists on both sides. The late Zeppelin raids were complemented by the Gotha bomber, which was the first heavier-than-air bomber to be used for strategic bombing. The French army on June 15, 1915, attacked the German town of Karlsruhe , killing 29 civilians and wounding 58. Further raids followed until the Armistice in 1918. In

8925-450: The target in waves. Nowadays, a large bomber or missile can be used to the same effect on a small area (an airfield, for example) by releasing a relatively large number of smaller bombs. Strategic bombing campaigns were conducted in Europe and Asia. The Germans and Japanese made use of mostly twin-engined bombers with a payload generally less than 5,000 pounds (2,300 kg), and never produced larger craft to any great extent. By comparison,

9030-404: The times remained " the bomber will always get through ". These theorists for strategic bombing argued that it would be necessary to develop a fleet of strategic bombers during peacetime, both to deter any potential enemy, and also in the case of a war, to be able to deliver devastating attacks on the enemy industries and cities while suffering from relatively few friendly casualties before victory

9135-406: The toll of many innocent lives. Should We continue to fight, it would not only result in an ultimate collapse and obliteration of the Japanese nation but also it would lead to the total extinction of human civilization. Such being the case, how are We to save the millions of Our subjects; or to atone Ourselves before the hallowed spirits of Our Imperial Ancestors? This is the reason why We have ordered

9240-560: The troops on the ground or against enemy shipping. During WWII with engine power as a major limitation, combined with the desire for accuracy and other operational factors, bomber designs tended to be tailored to specific roles. Early in the Cold War however, bombers were the only means of carrying nuclear weapons to enemy targets, and held the role of deterrence . With the advent of guided air-to-air missiles, bombers needed to avoid interception. High-speed and high-altitude flying became

9345-574: The unique ability of a modern air force to win wars by unaided strategic bombing. As the speed and altitude of bombers increased in proportion to fighter aircraft, the prevailing strategic understanding became "the bomber will always get through". Although anti-aircraft guns and fighter aircraft had proved effective in the Great War, it was accepted there was little warring nations could do to prevent massive civilian casualties from strategic bombing . High civilian morale and retaliation in kind were seen as

9450-513: The war, when Germany invaded Poland on 1 September 1939. A strategic-bombing campaign was launched by the Germans as a precursor to the invasion of the United Kingdom to force the RAF to engage the Luftwaffe and so be destroyed either on the ground or in the air. That tactic failed, and the RAF began bombing German cities on 11 May 1940. After the Battle of Britain , the Germans launched their night time Blitz hoping to break British morale and to have

9555-431: The war...". As a result of Douhet's proposals, air forces allocated greater resources to their bomber squadrons than to their fighters, and the 'dashing young pilots' promoted in the propaganda of the time were invariably bomber pilots. Royal Air Force leaders, in particular Air Chief Marshal Hugh Trenchard , believed the key to retaining their independence from the senior services was to lay stress on what they saw as

9660-463: The wing cavities liquid-tight, and thus serve as fuel storage. The Australian Government was initially uninterested in the CAC design. However, in mid-1940, cut off from the supply of British-made components for the Beaufort program (thanks to a British embargo on the export of aviation products, due to the need to maximise British production during the Battle of Britain), the Australian Government ordered

9765-449: The women and children as far as possible, and for this purpose, a warning should be given, whenever practicable. It would be wrong even at this stage to think that airpower was simply seen as a tool for rapid retribution. A statement clearly pointed out that the ability of aircraft to inflict punishment could be open to abuse: Their power to cover great distances at high speed, their instant readiness for action, their independence (within

9870-593: Was accidentally bombed in May, and in July the Kaiser allowed directed raids against urban centers. There were 23 airship raids in 1916, in which 125 tons of ordnance were dropped, killing 293 people and injuring 691. Gradually British air defenses improved. In 1917 and 1918, there were only 11 Zeppelin raids against England, and the final raid occurred on August 5, 1918, which resulted in the death of KK Peter Strasser , commander of

9975-433: Was achieved. In the period between the two world wars, military thinkers from several nations advocated strategic bombing as the logical and obvious way to employ aircraft. Domestic political considerations saw to it that the British worked harder on the concept than most. The British Royal Flying Corps and Royal Naval Air Service of the Great War had been merged in 1918 to create a separate air force, which spent much of

10080-531: Was bought by the Italian Army and it was delivered in quantity from August 1915 . While mainly used as a trainer , Avro 504s were also briefly used as bombers at the start of the First World War by the Royal Naval Air Service (RNAS) when they were used for raids on the German airship sheds. Bombing raids and interdiction operations were mainly carried out by French and British forces during

10185-411: Was fully expected that deaths would dramatically increase. The fear of aerial attack on such a scale was one of the fundamental driving forces of the appeasement of Nazi Germany in the 1930s. These early developments of aerial warfare led to two distinct branches in the writings of air warfare theorists: tactical air warfare and strategic air warfare. Tactical air warfare was developed as part of

10290-587: Was recovered and used for components. Data from War Planes of the Second World War: Bombers and Reconnaissance Aircraft, Volume Seven General characteristics Performance Armament Aircraft of comparable role, configuration, and era Related lists Bomber There are two major classifications of bomber: strategic and tactical. Strategic bombing is done by heavy bombers primarily designed for long-range bombing missions against strategic targets to diminish

10395-588: Was required, the smaller Japanese bombers (in comparison to British and American types) did not carry a bombload sufficient to inflict the sort of damage regularly occurring at that point in the war in Europe, or later in Japan. The development of the B-29 gave the United States a bomber with sufficient range to reach the Japanese home islands from the safety of American bases in the Pacific or western China. The capture of

10500-481: Was still disarmed and France was Britain's only European rival, Trenchard boasted, "the French in a bombing duel would probably squeal before we did". At the time, the expectation was any new war would be brief and very brutal. A British Cabinet planning document in 1938 predicted that, if war with Germany broke out, 35% of British homes would be hit by bombs in the first three weeks. This type of expectation would justify

10605-700: Was such an event, as was the bombing of the Ruhr dams . The Peenemünde mission delayed Nazi Germany's V-2 program enough that it did not become a major factor in the outcome of the war. Soviet Air Forces conducted strategic bombings of Helsinki , the capital of Finland , between 1939 and 1944, with Finland being subjected to a number of bombing campaigns by the USSR in that period. The largest were three raids in February 1944, which have been called The Great Raids Against Helsinki . The Finnish Air Force responded to

10710-432: Was switched to P-51 Mustang fighters. The only completed CA-11 Woomera, A23-1, was stripped for parts and scrapped in 1946. On 15 January 1943, the prototype CA-4 Wackett Bomber, A23-1001 , crashed on a test flight to assess powerplant performance and evaluate aerodynamic effects of a new fixed leading edge slat. During the return to the CAC airfield at Fisherman's Bend, the pilot, Squadron Leader Jim Harper, had detected

10815-474: Was the first four-engine bomber to equip a dedicated strategic bombing unit during World War I . This heavy bomber was unrivaled in the early stages of the war, as the Central Powers had no comparable aircraft until much later. Long range bombing raids were carried out at night by multi-engine biplanes such as the Gotha G.IV (whose name was synonymous with all multi-engine German bombers) and later

10920-423: Was the use of nuclear weapons. On August 6 and 9, 1945, the United States exploded nuclear bombs over Hiroshima and Nagasaki, killing 105,000 people and inflicting a psychological shock on the Japanese nation. On August 15, Emperor Hirohito announced the surrender of Japan , stating : Moreover, the enemy has begun to employ a new and most cruel bomb, the power of which to do damage is indeed incalculable, taking

11025-494: Was to come in the near future. Yet the theory that " the bomber will always get through " started to appear doubtful, as stated by the U.S.  Attaché in 1937, "The peacetime theory of the complete invulnerability of the modern type of bombardment airplane no longer holds. The increased speeds of both the bombardment and pursuit plane have worked in favor of the pursuit ... The flying fortress died in Spain." Large scale bombing of

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