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The second Schweinfurt raid, also called Black Thursday, was a
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
air battle that took place on 14 October 1943, over
Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
between forces of the United States
8th Air Force The Eighth Air Force (Air Forces Strategic) is a numbered air force (NAF) of the United States Air Force's Air Force Global Strike Command (AFGSC). It is headquartered at Barksdale Air Force Base, Louisiana. The command serves as Air Forces ...
and German ''
Luftwaffe The ''Luftwaffe'' () was the aerial-warfare branch of the German '' Wehrmacht'' before and during World War II. Germany's military air arms during World War I, the '' Luftstreitkräfte'' of the Imperial Army and the '' Marine-Fliegerabt ...
'' fighter arm (''Jagdwaffe''). The American bombers conducted a
strategic bombing Strategic bombing 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. It is a systematica ...
raid on
ball bearing A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this ...
factories to reduce production of these vital parts for all manner of war machines. This was the second attack on the factories at
Schweinfurt Schweinfurt ( , ; ) is a city in the district of Lower Franconia in Bavaria, Germany. It is the administrative centre of the surrounding district (''Landkreis'') of Schweinfurt and a major industrial, cultural and educational hub. The urban ag ...
. American wartime intelligence claimed the first
Schweinfurt–Regensburg mission The Schweinfurt–Regensburg mission was a strategic bombing mission during World War II carried out by Boeing B-17 Flying Fortress heavy bombers of the U.S. Army Air Forces on August 17, 1943. The mission was an ambitious plan to cripple the ...
in August had reduced bearing production by 34 percent but had cost many bombers. A planned follow-up raid had to be postponed to rebuild American forces. As the squadrons rebuilt, plans for the return mission were modified based on the lessons learned. Planners added additional fighter escorts to cover the outward and return legs of the operation and sent the entire force against Schweinfurt alone, instead of splitting the force. Despite these changes, a series of minor mishaps combined with the ever-increasing efficiency of the German anti-aircraft effort proved to be devastating. Of the 291
B-17 Flying Fortress The Boeing B-17 Flying Fortress is a four-engined heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Relatively fast and high-flying for a bomber of its era, the B-17 was used primarily in the European Theater ...
es sent on the mission, 60 were lost, another 17 damaged so heavily that they had to be scrapped and another 121 had varying degrees of battle damage. Losses represented over 26 percent of the attacking force and losses in aircrew were equally severe, with 650 men lost of 2,900, 22 percent of the bomber crews. The American Official History of the Army Air Forces in the Second World War acknowledged losses had been so great that the USAAF would not return to the target for four months, "The fact was that the Eighth Air Force had for the time being lost air superiority over Germany". The operation was a failure. The bomber formations were left exposed to attacks by German fighters and the faulty preparations for the creation of reserves in the summer of 1943 meant that such costly operations could not be sustained. An escort of 24 squadrons of Spitfires equipped with drop tanks was provided on the first and last leg of the mission. The strategy of the Allied air forces was flawed. Arthur Harris, Air Officer Commanding
RAF Bomber Command RAF Bomber Command controlled the Royal Air Force's bomber forces from 1936 to 1968. Along with the United States Army Air Forces, it played the central role in the strategic bombing of Germany in World War II. From 1942 onward, the British bo ...
questioned the intelligence that claimed ball bearings to be vital to the German war economy. Harris refused to cooperate with the Americans, believing ball bearing targets to be a "panacea". Post-war analysis has shown Harris's objections to be correct. The Germans had built up enormous reserves of ball bearings and were receiving supplies from all over Europe, particularly
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...
,
Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic countries, Nordic c ...
and
Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
. The operation against these industries would, even if successful, have achieved little. By 1945, the Germans had assembled more reserves than ever.


Background

Factories in and around Schweinfurt accounted for a significant amount of German ball bearing production. The
Kugelfischer Kugelfischer injection (also called ''System Kugelfischer'') is the name for a mechanical fuel injection (MFI) pump. It was produced by FAG Kugelfischer and later by Robert Bosch GmbH Derived from diesel pumps from the early 1960s, the Kugelfisch ...
plant produced 22 percent, the ''Vereinigte Kugellagerfabriken'' I and II produced 20 percent, and another one percent came from the
Fichtel & Sachs ZF Sachs AG, also known as Fichtel & Sachs, was founded in Schweinfurt in 1895 and was a well-known German family business. At its last point as an independent company, the company name was Fichtel & Sachs AG. In 1997, the automotive supplier wa ...
factory. After the German ball bearing "bottleneck" had been identified in 1942 and ball bearings had been named the second-most-vital Pointblank industry for the
Combined Bomber Offensive The Combined Bomber Offensive (CBO) was an Allied offensive of strategic bombing during World War II in Europe. The primary portion of the CBO was directed against Luftwaffe targets which was the highest priority from June 1943 to 1 April 1944. ...
in March 1943, Schweinfurt's ball bearing plants were selected for a second air raid after being bombed during the August
Schweinfurt–Regensburg mission The Schweinfurt–Regensburg mission was a strategic bombing mission during World War II carried out by Boeing B-17 Flying Fortress heavy bombers of the U.S. Army Air Forces on August 17, 1943. The mission was an ambitious plan to cripple the ...
.


Mission

Each of the three bomber wings was to be escorted by fighters from a single
group A group is a number of persons or things that are located, gathered, or classed together. Groups of people * Cultural group, a group whose members share the same cultural identity * Ethnic group, a group whose members share the same ethnic ide ...
with multiple squadrons of
P-47 Thunderbolt The Republic P-47 Thunderbolt is a World War II-era fighter aircraft produced by the American company Republic Aviation from 1941 through 1945. It was a successful high-altitude fighter and it also served as the foremost American fighter-bomb ...
s. The fighters were inexplicably not employing
drop tank In aviation, a drop tank (external tank, wing tank or belly tank) is used to describe auxiliary fuel tanks externally carried by aircraft. A drop tank is expendable and often capable of being jettisoned. External tanks are commonplace on modern ...
s which limited their escort range. One fighter outfit was sidetracked to escort a squadron of 29 B-24s that switched to a diversion mission to
Emden Emden () is an independent city and seaport in Lower Saxony in the northwest of Germany, on the river Ems. It is the main city of the region of East Frisia and, in 2011, had a total population of 51,528. History The exact founding date of ...
because of the bad weather forecast. Some 229 of 291 B-17s hit the city area and ball bearing plants at Schweinfurt in two groups: the first group bombed at 1439–1445 hours, the second group at 1451–1457 hours. They claimed 186 Luftwaffe aircraft. 60 B-17s were lost, two damaged beyond repair and 13 damaged; casualties amounted to five KIA, 40 WIA and 594 MIA. The bomber formations were spread out and vulnerable because of bad weather. The Luftwaffe
military intelligence Military intelligence is a military discipline that uses information collection and analysis approaches to provide guidance and direction to assist commanders in their decisions. This aim is achieved by providing an assessment of data from a ...
officers had suspected a deep penetration air raid because of the substantial raids.
Jagdgeschwader 3 ''Jagdgeschwader'' 3 (JG 3) "Udet" was a ''Luftwaffe'' fighter wing of World War II. The ''Geschwader'' operated on all the German fronts in the European Theatre of World War II. It was named after Ernst Udet, an important figure in the devel ...
''Udet'' fighter wing intercepted the bombers as they crossed the coast but P-47s succeeded in shooting down seven
Bf 109 The Messerschmitt Bf 109 is a German World War II fighter aircraft that was, along with the Focke-Wulf Fw 190, the backbone of the Luftwaffe's fighter force. The Bf 109 first saw operational service in 1937 during the Spanish Civil War an ...
s while losing just one P-47. However one P-47 was also lost when it crashed at Herongate and another during a one-wheel landing on base.RAF & US Fighter Commands – with annotated text. Issue I 1943 : https://web.archive.org/web/20130928070316/http://lesbutler.co.uk/claims/allied_1943_issue_Idoc.zip Over the
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
elements of two more "named" Luftwaffe fighter wings, JG 1 ''Oesau'' and
JG 26 ''Jagdgeschwader'' 26 (JG 26) ''Schlageter'' was a German fighter-wing of World War II. It was named after Albert Leo Schlageter, a World War I veteran, Freikorps member, and posthumous Nazi martyr, arrested and executed by the French for ...
''Schlageter'' made repeated attacks. The 305th Bomb Group lost 13 of its 16 B-17s in minutes. The B-17s were attacked after bombing by fighters that had refueled and rearmed (
JG 11 ''Jagdgeschwader'' 11 (JG 11) was a fighter wing (german: Jagdgeschwader) of the German Luftwaffe during World War II. Its primary role was the defense of Northern Germany against Allied day bomber raids. Formed in April 1943 as a split from ...
downed 18 B-17s). A total of 13 bombers were shot down by German fighters and flak and 12 bombers were damaged so badly that they crashed upon return or had to be scrapped. Another 121 bombers returned with moderate damage. Of 2,900 crewmen, about 254 men did not return (65 survived as
prisoners-of-war A prisoner of war (POW) is a person who is held captive by a belligerent power during or immediately after an armed conflict. The earliest recorded usage of the phrase "prisoner of war" dates back to 1610. Belligerents hold prisoners of wa ...
), while five killed-in-action and 43 wounded were in the damaged aircraft that returned (594 were listed as missing-in-action). Among the most seriously affected American units was the 306th Bomb Group. It lost 100 men: 35 died on the mission or of wounds and 65 were captured. The 305th Bomb Group lost 130 men (87%), with 36 killed. The defensive efforts of both JG 1 and JG 11 during the "Black Thursday" raid are said to have included substantial use of the BR 21 unguided stand-off rockets against the USAAF
combat box The combat box was a tactical formation used by heavy (strategic) bombers of the U.S. Army Air Forces during World War II. The combat box was also referred to as a "staggered formation". Its defensive purpose was in massing the firepower of the b ...
es, as both Luftwaffe fighter wings had started use of the ordnance some six months earlier.


Aftermath

Although the Schweinfurt factories were badly hit, the mission failed to achieve any lasting effect. The production of ball bearings in the factories was halted for only 6 weeks and Germany's war industry could easily rely on its substantial inventory of ball bearings as well as a large production surplus. In addition, the ball bearing facilities were dispersed to reduce their bombing risk. Consequently, despite General Henry H. Arnold's claim that the Black Thursday "''loss of 60 '' owned/ditched' American bombers in the Schweinfurt raid was incidental''", unescorted daylight bomber raids deep into Germany were suspended until the February 1944
Big Week Big Week or Operation Argument was a sequence of raids by the United States Army Air Forces and RAF Bomber Command from 20 to 25 February 1944, as part of the European strategic bombing campaign against Nazi Germany. The planners intended to ...
missions with P-51B Mustang escorts that included additional Schweinfurt day/night USAAF/RAF bombing on the 24th. Another example of the strategy of using heavy bombers against a particular wartime resource, the Oil Campaign of World War II was essentially started by the
RAF Bomber Command RAF Bomber Command controlled the Royal Air Force's bomber forces from 1936 to 1968. Along with the United States Army Air Forces, it played the central role in the strategic bombing of Germany in World War II. From 1942 onward, the British bo ...
as early as August 1941 – two months after Hitler's invasion of the Soviet Union, and six months before the United States entered the war. It went forward relentlessly from that time with the USAAF joining in on the efforts by late June 1943 during daylight. The Oil Campaign had its priority diminished from time to time with important events, such as the lead-up to
Operation Overlord Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied Western Europe during World War II. The operation was launched on 6 June 1944 (D-Day) with the Norm ...
, which by June 1944 demanded heavy bomber support for a time, but soon thereafter the relentless attacks by day and night resumed, starving the entire German ''Wehrmacht'' military of fuel and lubricants from the autumn of 1944 onwards.


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External links

{{DEFAULTSORT:Schweinfurt 1943 in Germany World War II strategic bombing of Germany 20th century in Bavaria Second Raid on Schweinfurt