Junkers Ju 52
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The Junkers Ju 52/3m (nicknamed ''Tante Ju'' ("Aunt Ju") and ''Iron Annie'') is a transport aircraft that was designed and manufactured by German aviation company
Junkers Junkers Flugzeug- und Motorenwerke AG (JFM, earlier JCO or JKO in World War I, English: Junkers Aircraft and Motor Works) more commonly Junkers , was a major German aircraft and aircraft engine manufacturer. It was founded there in Dessau, Ge ...
. Development of the Ju 52 commenced during 1930, headed by German aeronautical engineer Ernst Zindel. The aircraft's design incorporated a corrugated duralumin metal skin as a strengthening measure, which was very unusual at the time. The Ju 52's
maiden flight The maiden flight, also known as first flight, of an aircraft is the first occasion on which it leaves the ground under its own power. The same term is also used for the first launch of rockets. The maiden flight of a new aircraft type is alw ...
was performed on 13 October 1930. It was initially designed with a single engine, however, it was produced in quantity as a trimotor. The primary early production model, the ''Ju 52/3m'', was principally operated as a 17-seat airliner or utility transport aircraft by various civil operators during the 1930s. Following the rise of
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 ...
, thousands of Ju 52s were procured as a staple military transport of the nation. The ''Ju 52/3mg7e'' was the principal production model. The Ju 52 was in production between 1931 and 1952. In a civilian role, it flew with over 12 airlines, including
Swissair Swissair AG/ S.A. (German: Schweizerische Luftverkehr-AG; French: S.A. Suisse pour la Navigation Aérienne) was the national airline of Switzerland between its founding in 1931 and bankruptcy in 2002. It was formed from a merger between Bal ...
and Deutsche Luft Hansa, as both a passenger carrier and a freight hauler. In a military role, large numbers flew with the
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 ...
, being deployed on virtually all fronts of the
Second World War 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 vast majority of the world's countries—including all of the great powers—forming two opposi ...
as a troop and cargo transport; it was also briefly used as a
medium bomber A medium bomber is a military bomber Fixed-wing aircraft, aircraft designed to operate with medium-sized Aerial bomb, bombloads over medium Range (aeronautics), range distances; the name serves to distinguish this type from larger heavy bombe ...
. Additionally, the type was deployed by other nation's militaries in conflicts such as the
Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlism, Carlists, and The Rebellion ( es, La Rebeli ...
, the Chaco War, and the
Portuguese Colonial War The Portuguese Colonial War ( pt, Guerra Colonial Portuguesa), also known in Portugal as the Overseas War () or in the former colonies as the War of Liberation (), and also known as the Angolan, Guinea-Bissau and Mozambican War of Independence, ...
. During the postwar era, the Ju 52 had a lengthy service life with numerous military and civilian operators; large numbers were still in use by the 1980s. Even in the 21st century, several aircraft have remained operational, typically used for purposes such as heritage aviation displays and aerial sightseeing.


Development

The Ju 52 was similar to the company's previous Junkers W 33, although larger. In 1930, German aeronautical engineer Ernst Zindel and his team designed the Ju 52 at the
Junkers Junkers Flugzeug- und Motorenwerke AG (JFM, earlier JCO or JKO in World War I, English: Junkers Aircraft and Motor Works) more commonly Junkers , was a major German aircraft and aircraft engine manufacturer. It was founded there in Dessau, Ge ...
works at Dessau. According to aviation author J. Richard Smith, the Ju 52 directly drew upon the company's
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
-era Junkers J 1 - the world's first all-metal aeroplane.Smith 1966, p. 3. On 13 October 1930, the first prototype, designated ''Ju 52ba'', performed the type's
maiden flight The maiden flight, also known as first flight, of an aircraft is the first occasion on which it leaves the ground under its own power. The same term is also used for the first launch of rockets. The maiden flight of a new aircraft type is alw ...
; it was initially powered by a single Junkers-built liquid-cooled V-12 engine, capable of generating up to 800 hp. During the aircraft's extensive trials, it was reengined with a 755 hp BMW IV water-cooled inline-6 powerplant. The second prototype, designated ''Ju 52de'', featured an increased wing span and was powered by the BMW IV engine at first; it was soon reengined with the 750 hp 14-cylinder twin-row air-cooled radial Armstrong Siddeley Leopard and re-designated ''Ju 52di''. Later on, the Ju 52di was again reengined with the 750 hp Junkers Jumo 204 air-cooled inverted inline-6, after which it was re-designated ''Ju 52do''. The third prototype, designated ''Ju 52ce'', had a strengthened structure, a modified leading edge, and was fitted with both a wheeled and float undercarriages. During May 1931, one of the prototypes, designated ''Ju 52cai'', was written off after a crash.Smith 1966, pp. 3-4. While these initial aircraft had been powered by a single engine, Junkers decided to develop the Ju 52 into a trimotor configuration. Accordingly, the ''Ju 52/3m'' (''drei motoren''—"three engines") was developed, being powered by an arrangement of three
radial engine The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ...
s. According to Smith, the earliest known Ju 52/3m was delivered to
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n airline
Lloyd Aéreo Boliviano Lloyd Aéreo Boliviano S.A.M. (abbreviated LAB and internationally known as LAB Airlines), was the flag carrier and principal airline of Bolivia from 1925 until it ceased operations in 2010. Before its demise it was headquartered in Cochabamba ...
during 1932. During its initial production years, airlines were the type's most common customers. By the mid-1930s, the ''Ju 52/3mce'' and ''Ju 52/3fe'', were the two primary production variants, both being powered by the BMW 132 radial engine.Smith 1966, p. 4. During 1934, work commenced on a militarised model of the Ju 52/3m, designated ''Ju 52/3mg3e'', on behalf of the then-secret
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 ...
. This model could function as a
medium bomber A medium bomber is a military bomber Fixed-wing aircraft, aircraft designed to operate with medium-sized Aerial bomb, bombloads over medium Range (aeronautics), range distances; the name serves to distinguish this type from larger heavy bombe ...
, being furnished with a pair of defensive gun turrets and operated by a crew of four. Between 1934 and 1935, a total of 450 Ju 52/3mg3e aircraft were delivered to the Luftwaffe. Numerous improved models would be introduced prior to and during the
Second World War 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 vast majority of the world's countries—including all of the great powers—forming two opposi ...
. The dominant production model was the ''Ju 52/3mg7e'', featuring advances such as an autopilot, enlarged doors to the cabin, and other general enhancements. It was configured as a pure transport aircraft, being capable of carrying up to 18 fully-equipped troops. Defensive armaments comprised a dorsal-mounted 13 mm MG 131 machine gun and a pair of sideways-mounted 7.9mm MG 15 machine guns.Smith 1966, p. 6. Successive models saw other improvements, such as revised glazing, newer engines, undercarriage strengthening, and increased take-off weight. The final wartime model to be developed, designated ''Ju 52/3mg14e'', featured improved armour protection for the pilot and a bolstered defensive armament.Smith 1966, pp. 6-7. From mid-1943 onwards, the Luftwaffe began to make less use of the Ju 52, interest having waned in the type. German officials were interested in procuring a successor to the type; at one stage, the Reich Air Ministry showed enthusiasm for the Junkers Ju 352, a larger transport aircraft somewhat resembling the Ju 52. Actions were taken to convert Junkers' Ju 52 production lines to instead manufacture Ju 352s; however, the conflict's end in May 1945 led to the effort being abandoned in an unfinished state.Smith 1966, p. 13. As such, German production of the Ju 52 was terminated during 1944; Smith claims that a total of 3,234 aircraft of various models were constructed during the conflict.Smith 1966, p. 7. In the postwar era, manufacture of the Ju 52 resumed, albeit in foreign countries. It was constructed in France by Avions Amiot as the ''Amiot AAC.1 Toucan''; it was also produced in Spain by
Construcciones Aeronáuticas SA Construcciones Aeronáuticas SA (CASA) was a Spanish aircraft manufacturer that was founded in 1923 and began manufacturing aircraft the following year. In 1999 it became a subsidiary of the EADS (European Aeronautic Defence and Space Company) ...
(CASA) as the ''CASA 352''. A handful of captured wartime aircraft were also rebuilt by
Short Brothers Short Brothers plc, usually referred to as Shorts or Short, is an aerospace company based in Belfast, Northern Ireland. Shorts was founded in 1908 in London, and was the first company in the world to make production aeroplanes. It was particu ...
of
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for civilian service.


Design

The Ju 52 had a low
cantilever A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a cant ...
wing, the midsection of which was built into the
fuselage The fuselage (; from the French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft t ...
, forming its underside. It was formed around four pairs of circular cross-section duralumin spars with a corrugated surface that provided torsional stiffening. A narrow control surface, with its outer section functioning as the aileron, and the inner section functioning as a flap, ran along the whole trailing edge of each wing panel, well separated from it. The inner flap section lowered the stalling speed and the arrangement became known as the ''Doppelflügel'', or "double wing".Jackson 1960, p. 100. The outer sections of this operated differentially as ailerons, projecting slightly beyond the wingtips with control horns. The strutted horizontal stabilizer carried horn-balanced
elevator An elevator or lift is a cable-assisted, hydraulic cylinder-assisted, or roller-track assisted machine that vertically transports people or freight between floors, levels, or decks of a building, vessel, or other structure. They ...
s which again projected and showed a significant gap between them and the stabilizer, which was adjustable in-flight. All stabilizer surfaces were corrugated. The Ju 52 featured an unusual corrugated duralumin metal skin, which had been pioneered by Junkers during the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
; the corrugation served to strengthen the whole structure over a smoother approach. The fuselage was of rectangular section with a domed decking, comprising a tubular steel structure that was entirely covered by the corrugated metal skin. A port-side passenger door was placed just aft of the wings; this entrance also acted as a loading hatch for freight, the lower half functioning as a platform to ease cargo movements. The cabin had a dimensional capacity of 590 cubic feet, and was lined with numerous windows stretching forward to the pilots'
cockpit A cockpit or flight deck is the area, usually near the front of an aircraft or spacecraft, from which a pilot controls the aircraft. The cockpit of an aircraft contains flight instruments on an instrument panel, and the controls that e ...
. The main undercarriage was fixed and divided; some aircraft had wheel fairings, others did not. A fixed tailskid, or a later tailwheel, was used. Some aircraft were fitted with floats or skis instead of the main wheels. In its original configuration, designated the ''Ju 52/1m'', the Ju 52 was a single-engined aircraft, powered by either a BMW IV or Junkers liquid-cooled V-12 engine. However, the single-engined model was deemed to have been underpowered and, after seven
prototype A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming. A prototype is generally used to ...
s had been completed, all subsequent Ju 52s were built with three
radial engine The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ...
s as the ''Ju 52/3m'' (''drei motoren''—"three engines"). Originally powered by three Pratt & Whitney R-1690 Hornet radial engines, later production models mainly received 574 kW (770 hp) BMW 132 engines, a licence-built refinement of the Pratt & Whitney design. Export models were also built with 447 kW (600 hp)
Pratt & Whitney R-1340 Wasp The Pratt & Whitney R-1340 Wasp is an aircraft engine of the reciprocating type that was widely used in American aircraft from the 1920s onward. It was the Pratt & Whitney aircraft company's first engine, and the first of the famed Wasp series ...
and 578 kW (775 hp)
Bristol Pegasus The Bristol Pegasus is a British nine-cylinder, single-row, air-cooled radial aero engine. Designed by Roy Fedden of the Bristol Aeroplane Company, it was used to power both civil and military aircraft of the 1930s and 1940s. Developed from th ...
VI engines. The two wing-mounted radial engines of the Ju 52/3m had half- chord
cowling A cowling is the removable covering of a vehicle's engine, most often found on automobiles, motorcycles, airplanes, and on outboard boat motors. On airplanes, cowlings are used to reduce drag and to cool the engine. On boats, cowlings are a cove ...
s and in planform view (from above/below) appeared to be splayed outwards, being mounted at an almost perpendicular angle to the tapered wing's sweptback leading edge (in a similar fashion to the Mitsubishi G3M bomber and
Short Sunderland The Short S.25 Sunderland is a British flying boat patrol bomber, developed and constructed by Short Brothers for the Royal Air Force (RAF). The aircraft took its service name from the town (latterly, city) and port of Sunderland in North Ea ...
; the angled engines on the Ju 52 were intended to make maintaining straight flight easier should an engine fail, while the others had different reasons). The three engines had either Townend ring or NACA cowlings to reduce drag from the engine cylinders, although a mixture of the two was most common (as can be seen in many of the accompanying photographs), with deeper-chord NACA cowlings on the wing engines and a narrow Townend ring on the center engine (onto which a deeper NACA cowl was more difficult to fit, due to the widening fuselage behind the engine). Production Ju 52/3m aircraft flown by Deutsche Luft Hansa before the Second World War, as well as Luftwaffe-flown Ju 52s flown during the war, usually used an air-start system to turn over their trio of radial engines, using a common compressed air supply that also operated the main wheels' brakes. In a military context, the Ju 52 could carry up to 18 fully-equipped soldiers, or 12 stretchers when used as an
air ambulance Air medical services is a comprehensive term covering the use of air transportation, aeroplane or helicopter, to move patients to and from healthcare facilities and accident scenes. Personnel provide comprehensive prehospital and emergency and cri ...
. Transported material was loaded and unloaded through side doors by means of a ramp. Air-dropped supplies were jettisoned through two double chutes; supply containers were dropped by parachute through the bomb-bay doors, and
paratroopers A paratrooper is a military parachutist—someone trained to parachute into a military operation, and usually functioning as part of an airborne force. Military parachutists (troops) and parachutes were first used on a large scale during Worl ...
jumped through the side doors. Sd.Kfz. 2 ''Kettenkrafträder'' (half-track motorcycles) and supply canisters for parachute troops were secured under the fuselage at the bomb bay exits and were dropped with four parachutes. A tow coupling was built into the tail-skid for use in towing freight gliders. The Ju 52 could tow up to two DFS 230 gliders.


Operational history


Prewar civil use

In late 1931, James A. Richardson's Canadian Airways received (Werknummer 4006) ''CF-ARM'', the sixth-built Ju 52/1m. The aircraft, first refitted with an Armstrong Siddeley Leopard radial engine and then later with a Rolls-Royce Buzzard and nicknamed the "Flying Boxcar" in Canada, could lift about 3 tons and had a maximum weight of 7 tonnes (8 tons). It was commonly used to supply mining and other operations in remote areas with equipment that was too big and heavy for other aircraft then in use. The Ju 52/1m was able to land on wheels, skis, or floats (as were all Ju 52 variants). Prior to the
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's seizure of control of the Junkers company during 1935, the Ju 52/3m was produced principally as a 17-seat airliner. By 1935, 97 Ju 52s were being operated by numerous airlines; early customers included
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's
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,
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's
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, and
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's Syndicato Condor. During May 1932, German flag carrier Luft Hansa took delivery of its first example of the type. The Ju 52 was heavily used by Luft Hansa, it was able to fly from
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to
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in eight hours; both this route and the
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-Berlin service was frequently operated by the type. According to Smith, Luft Hansa's Ju 52 fleet eventually numbered 231 Ju 52s;Smith 1966, p. 5. during the pre-war era, it was flown on various routes from Germany on routes in Europe, Asia, and South America.


Military use 1932–1945

The Colombian Air Force used three Ju 52/3mde bombers equipped as floatplanes during the Colombia-Peru War in 1932–1933. After the war, the air force acquired three other Ju 52mge as transports; the type remained in service until after the end of the
Second World War 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 vast majority of the world's countries—including all of the great powers—forming two opposi ...
.
Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...
acquired four Ju 52s in the course of the Chaco War (1932–1935), mainly for
medical evacuation Medical evacuation, often shortened to medevac or medivac, is the timely and efficient movement and en route care provided by medical personnel to wounded being evacuated from a battlefield, to injured patients being evacuated from the scene of a ...
and air supply. During the conflict, the Ju 52s alone transported more than 4,400 tons of cargo to the front. In 1934, Junkers received orders to produce a bomber version of the Ju 52/3m to serve as interim equipment for the bomber units of the still-secret Luftwaffe until it could be replaced by the purpose-designed Dornier Do 11.Green 1972, p. 405. Two bomb bays were fitted, capable of holding up to of bombs, while defensive armament consisted of two 7.92 mm MG 15 machine guns, one in an open dorsal position, and one in a retractable "dustbin" ventral position, which could be manually winched down from the fuselage to protect the aircraft from attacks from below. The bomber could be easily converted to serve in the transport role.Green 1972, p. 406. The Dornier Do 11 was a failure, however, and the Junkers ended up being acquired in much larger numbers than at first expected, with the type being the Luftwaffe's main bomber until more modern aircraft such as the
Heinkel He 111 The Heinkel He 111 is a German airliner and bomber designed by Siegfried and Walter Günter at Heinkel Flugzeugwerke in 1934. Through development, it was described as a " wolf in sheep's clothing". Due to restrictions placed on Germany after t ...
, Junkers Ju 86 and Dornier Do 17 entered into service.Green 1972, pp. 405–406.Smith and Kay 1972, p. 360. The Ju 52 was used in military service in the
Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlism, Carlists, and The Rebellion ( es, La Rebeli ...
against the Spanish Republic. It was one of the first aircraft to be delivered to the Nationalist faction in July 1936, with 20 Ju 52/3m g3e bombers being delivered to the Nationalist forces by Germany within a week of the start of the war. Their first use was to help
airlift An airlift is the organized delivery of supplies or personnel primarily via military transport aircraft. Airlifting consists of two distinct types: strategic and tactical. Typically, strategic airlifting involves moving material long distan ...
Franco's Army of Africa from
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to the Spanish mainland, bypassing a Spanish republican naval blockade. Between 20 July and the end of August 1936, Ju 52s carried out 461 transport flights, ferrying 7,350 troops together with weapons and equipment, with 5,455 more troops carried in September and a further 1,157 troops carried by the time the airlift ended early in October.Green 1972, pp. 406–407. According to Smith, the Ju 52 gained a formidable reputation; the type having been reportedly used in practically every major military engagement in support of Nationalist forces. In the Spanish theatre, the Ju 52 was operated both as a bomber and as a transport. In the former role, it participated in the
bombing of Guernica On 26 April 1937, the Basque town of Guernica (''Gernika'' in Basque) was aerial bombed during the Spanish Civil War. It was carried out at the behest of Francisco Franco's rebel Nationalist faction by its allies, the Nazi German Luftwaffe ...
, although it was considered obsolete as a bomber by late 1937, by which point it was in the process of being replaced by more capable bombers such as the Dornier Do 17 and Heinkel He 111.Smith 1966, pp. 5-6. The type's final sortie in the theatre was performed on 26 March 1939. By the end of the conflict, Ju 52s had accumulated 13,000 operational hours and had performed 5,400 offensive missions and dropped over 6,000 bombs. Following the end of the Spanish Civil War, no further aircraft of the bomber variants were built, though the type was again used as a bomber during the bombing of Warsaw during the
invasion of Poland The invasion of Poland (1 September – 6 October 1939) was a joint attack on the Republic of Poland by Nazi Germany and the Soviet Union which marked the beginning of World War II. The German invasion began on 1 September 1939, one week af ...
in September 1939. The Luftwaffe instead relied on the Ju 52 for transport roles during the Second World War, including
paratroop A paratrooper is a military parachutist—someone trained to parachute into a military operation, and usually functioning as part of an airborne force. Military parachutists (troops) and parachutes were first used on a large scale during Wor ...
drops.


Second World War

During its service with Luft Hansa, the Ju 52 had proved to be an extremely reliable passenger airplane. This positive experience contributed to its adoption by the Luftwaffe as a standard aircraft model. In 1938, the
7th Air Division The 7th Air Division (7 AD) served the United States Air Force with distinction from early 1944 through early 1992, earning an outstanding unit decoration and a service streamer along the way. History Hawaii As the 7th Fighter Wing, the divis ...
had five air transport groups with 250 Ju 52s. The Luftwaffe had 552 Ju 52s at the start of the Second World War. Though it was built in great numbers, the Ju 52 was technically obsolete. Between 1939 and 1944, 2,804 Ju 52s were delivered to the Luftwaffe (1939: 145; 1940: 388; 1941: 502; 1942: 503; 1943: 887; and 1944: 379). The production of Ju 52s continued until around the summer of 1944; when the war came to an end, 100 to 200 were still available. Lightly armed, and with a top speed of only 265 km/h (165 mph) — half that of a contemporary
Hurricane A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Dep ...
 — the Ju 52 was very vulnerable to fighter attack, and an escort was always necessary when flying in a combat zone. Many Ju 52's were shot down by
antiaircraft gun Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...
s and fighters while transporting supplies, most notably during the desperate attempt to resupply the trapped German Sixth Army during the final stages of the Battle of Stalingrad in the winter of 1942–1943.Smith 1966, pp. 11-12. From 24 November 1942 to 31 January 1943, 488 aircraft were recorded as lost (this number included 266 Ju 52, 165 He 111, 42 Ju 86, 9 Fw 200, 5 He 177 and 1 Ju 290) and about 1,000 flight personnel.


Denmark and Norway campaign

The first major operation for the aircraft after the bombing of Warsaw was in Operation Weserübung, the attack on Denmark and Norway on 9 April 1940. Fifty-two Ju 52s from 1. and 8. Staffel in Kampfgeschwader 1 transported a company of ''Fallschirmjäger (World War II), Fallschirmjäger'' (paratroopers) and a battalion of infantry to the northern part of Jutland, and captured the airfield at Aalborg, vital to support the operation in southern Norway. Several hundred Ju 52s were also used to transport troops to Norway in the first days of this campaign.Smith 1966, pp. 7, 10. During the Norwegian campaign, the Luftwaffe's Ju 52s performed a total of 3,018 sorties, 1830 of which had been carrying troops while the remainder transported cargo and various supplies. According to Smith, 29,280 personnel, 2,376 tons of supplies and 259,300 imp. gallons of fuel had been airlifted by Ju 52s through the campaign. Around 150 aircraft had been recorded as lost by the end of operations.Smith 1966, p. 10. The seaplane version, equipped with two large floats, served during the Norwegian campaign in 1940, and later in the Mediterranean theatre of World War II, Mediterranean theatre. Some Ju 52's, both floatplanes and landplanes, were also used as minesweepers, known as ''Minensuch'' — literally, "mine-search" aircraft in German — and fitted with a diameter current-carrying degaussing ring under the airframe to create a magnetic field that triggered submerged Naval mine#Influence mines, naval mines. These aircraft were usually given an -"MS" suffix to designate them, as had been done with the similarly equipped Blohm & Voss Bv 138, Bv 138 MS trimotor flying boat.


Netherlands campaign

The Ju 52 transport aircraft participated in the attack on the Netherlands on 10 May 1940. It was during this campaign that the Ju 52 performed a crucial role in carrying out the first large-scale air attack with paratroops in history during the Battle for The Hague. According to Smith, 500 Ju 52s had been made ready for the aerial assault on the Low Countries. In addition to the paratroop drops, they also directly landed in hostile territory to deploy assault troops, such as at Ypenburg Airport, on public highways around The Hague, and on the Meuse, River Meuse (the latter using float-equipped aircraft).Smith 1966, pp. 10-11. During the opening days of the Netherlands campaign, many German aircraft were shot down by Dutch AA-fire; a total of 125 Ju 52s were lost and 47 damaged; author Hooton considered these losses to have been relatively costly for the Luftwaffe. Although transport operations with the Ju 52 were noticeably curtailed after the initial days of the invasion, the type continued to aerially supply forward ground troops.Smith 1966, p. 11. During August 1940, Nazi German decided to base large numbers of Ju 52s at airfields in the Lyon, Lille, and Arras areas. Luftwaffe transport units were deliberately held at a state of readiness for Operation Sea Lion, the envisioned invasion of the British Isles; however, this operation was never attempted, in part due to the Luftwaffe being unable to secure aerial supremacy during the Battle of Britain.


Balkans campaign

The next major use of the Ju 52 was in the Balkan Campaign (World War II), Balkans campaign. The type has been credited with enabling the rapid deployment of German ground forces throughout the theatre. The Ju 52 was also deployed during the Battle of Crete in late May 1941. 493 Ju 52/3m aircraft were used to transport most of the 22,750 troops flown onto Crete for the Luftwaffe's largest airborne invasion of the war. While victorious, 170 aircraft were lost along with 4,500 personnel; the high loss rate brought about the end of German paratrooper operations.


North Africa campaign

During the North African campaign, the Ju 52 was the mainstay reinforcement and resupply transport for the Germans, starting with 20 to 50 flights a day to Tunisia from Sicily in November 1942, building to 150 landings a day in early April as the Axis situation became more desperate. The Allied air forces developed a counter-air operation over a two-month period and implemented Operation Flax on 5 April 1943, destroying 11 Ju 52s in the air near Cap Bon and many more during bombing attacks on its Sicilian airfields, leaving only 29 flyable. That began two catastrophic weeks in which more than 140 aircraft were lost in air interceptions, culminating on 18 April with the Operation Flax#Palm Sunday Massacre, "Palm Sunday Massacre" in which 24 Ju 52s were shot down, and another 35 staggered back to Sicily and crash-landed.Smith 1966, p. 12.


Hitler's personal transport

Hitler used a Deutsche Luft Hansa Ju 52 for campaigning in the 1932 German election, preferring flying to train travel. After he became Chancellor of Germany in 1933, Hans Baur became his personal pilot, and Hitler was provided with a personal Ju 52. Named ''Immelmann II'' after the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
ace Max Immelmann, it carried the registration D-2600.Hoffmann 2000, p. 75. As his power and importance grew, Hitler's personal air force grew to nearly 50 aircraft, based at Berlin Tempelhof Airport and made up mainly of Ju 52s, which also flew other members of his cabinet and war staff. In September 1939, at Baur's suggestion, ''Immelmann II'' was replaced by a four-engine Focke-Wulf Fw 200 Condor, Focke-Wulf Fw 200 ''Condor'', although ''Immelman II'' remained his backup aircraft for the rest of the Second World War.


Chiang Kai-shek's personal transport

Eurasia Aviation Corporation, Eurasia was a major Chinese airliner company in the 1930s and operated at least seven Ju 52/3ms. A further example, sent out as a demonstrator to Eurasia, was purchased by the Kuomintang, Chinese Nationalist Party government and became Chiang Kai-shek's personal transport.


Postwar use

Various Junkers Ju 52s continued in military and civilian use following World War II. In 1956, the Portuguese Air Force, which was already using the Ju 52s as a transport plane, employed the type as a paratroop drop aircraft for its newly organized elite Parachute Troops School, parachute forces, later known as the ''Parachute Troops School, Batalhão de Caçadores Páraquedistas''. The paratroopers used the Ju 52 in several combat operations in Angola and other Portuguese African colonies before gradually phasing it out of service in the 1960s. The Swiss Air Force also operated the Ju 52 from 1939 to 1982, when three aircraft remained in operation, probably the last and longest service in any air force. Museums hoped to obtain the aircraft, but they were not for sale. They are still in flying condition and together with a CASA 352 can be booked for sightseeing tours List of airworthy Ju 52s, with Ju-Air. During the 1950s, the Ju 52 was also used by the French Air Force during the First Indochina War as a bomber. The use of these Junkers was quite limited. The Spanish Air Force operated the Ju 52, nicknamed ''Pava'', until well into the 1970s. Escuadrón 721, flying the Spanish-built versions, was employed in training Parachuting, parachutists from Alcantarilla Air Base near Murcia. Some military Ju 52s were converted to civilian use. For example, British European Airways operated 11 ex-Luftwaffe Ju 52/3mg8e machines, taken over by the RAF, between 1946 and retirement in 1947 on intra-U.K. routes before the Douglas DC-3 was introduced to the airline. French airlines such as ''Societe de Transports Aeriens'' (STA) and Air France flew Toucans in the late 1940s and early 1950s. In the USSR, captured Ju 52s were allocated to the Civil Air Fleet, being found particularly suitable for transporting sulphur from the Karakum Desert. Various Soviet agencies used the Ju 52 through to 1950. A Ju 52 and a Douglas DC-3 were the last aircraft to take off from Berlin Tempelhof Airport before all operations ceased there on 30 October 2008.


Other versions

Most Ju 52s were destroyed after the war, but 585 were built after 1945. In France, the machine had been manufactured during the war by the Junkers-controlled Avions Amiot company, and production continued afterwards as the Amiot AAC 1 Toucan. In Spain, ''Construcciones Aeronáuticas SA'' continued production as the CASA 352 and 352L. List of airworthy Ju 52s, Four CASA 352s are airworthy and in regular use today.


Variants

''Data from ''Junkers Aircraft & Engines 1913–1945


Civil variants

;Ju 52 :Prototype of the single-engined transport aircraft, of twelve laid down only six were completed as single-engined aircraft. First flight: 3 September 1930, powered by a BMW VII, BMW VIIaU engine. ;Ju 52/1mba :The prototype Ju 52, (c/n 4001, regn D-1974), redesignated after being re-engined with a single Junkers L88 engine ;Ju 52/1mbe :Aircraft powered by BMW VIIaU ;Ju 52/1mbi :The second prototype, (c/n 4002, regn D-2133), fitted with an Armstrong Siddeley Leopard engine ;Ju 52/1mca :D-1974 fitted with drag flaps and refitted with a BMW VIIaU ;Ju 52/1mcai :D-2356, (c/n 4005), crashed in May 1933 ;Ju 52/1mce :D-USON (c/n 4003) used as a target tug. D-2317, (c/n 4004), converted to a torpedo bomber in Sweden as the K 45 ;Ju 52/1mci :The second prototype fitted with long stepped floats, flying from the River Elbe on 17 July 1931 ;Ju 52/1mdi :The second prototype after having the floats removed and undercarriage reinstated, registered as D-USUS from 1934 ;Ju 52/1mdo :D-1974 fitted with a Junkers Jumo 204, Junkers Jumo 4 engine as a testbed, reregistered as D-UZYP from 1937 ;Ju 52/3m :Three-engined prototype, powered by three
Pratt & Whitney R-1340 Wasp The Pratt & Whitney R-1340 Wasp is an aircraft engine of the reciprocating type that was widely used in American aircraft from the 1920s onward. It was the Pratt & Whitney aircraft company's first engine, and the first of the famed Wasp series ...
engines, first flight: 7 March 1932 ;Ju 52/3mba :VIP version for the president of the Fédération Aéronautique Internationale, Romanian prince Gheorghe Bibescu, powered by a Hispano-Suiza 12Y, Hispano-Suiza 12Mb engine in the nose and two Hispano-Suiza 12Nb engines (one on each wing) ;Ju 52/3mce :Three-engined civil transport aircraft, powered by three Pratt & Whitney Hornet or BMW 132 engines ;Ju 52/3mci :Planned version for Sweden, powered by Pratt & Whitney Wasp engines, not built ;Ju 52/3mde :Seaplane version for Bolivia and Colombia, converted from Ju 52/1m ;Ju 52/3mfe :Improved version, with chassis reinforcements and NACA cowlings on the outer engines, powered by three BMW 132A-3 engines ;Ju 52/3mf1e :Trainer version for DVS ;Ju 52/3mge :Airliner version, powered by BMW Hornet 132A engines ;Ju 52/3mho :Two aircraft powered by Junkers Jumo 205C diesel engines, used only for testing ;Ju 52/3mkao :Version powered by two BMW 132A and one BMW 132F or BMW 132N as a testbed ;Ju 52/3ml :Powered by three Pratt & Whitney R-1690-S1EG engines ;Ju 52/3mlu :Airliner version for Italy, powered by Piaggio Stella X engines, later re-engined with Alfa Romeo 126RC/34 engines ;Ju 52/3mmao :Similar to kao except with NACA cowling ;Ju 52/3mnai :Airliner version for Sweden and Great Britain, powered by Pratt & Whitney Wasp engines ;Ju 52/3mreo :Airliner version for South America, powered by BMW 132Da/Dc engines ;Ju 52/3msai :Airliner version for Sweden and South America, powered by Pratt & Whitney Wasp engines ;Ju 52/3mte :Airliner version, powered by three BMW 132K engines ;Ju 52/3mZ5 :Export version for Finland, powered by BMW 132Z-3 engines


Military variants

;Ju 52/3mg3e :Improved military version, powered by three BMW 132A-3 (improved version of the Pratt & Whitney R-1690 Hornet) radial engines, equipped with an improved radio and bomb-release mechanism. Later versions had a tailwheel that replaced the tailskid. ;Ju 52/3mg4e :Military transport version, the tailskid was replaced by a tailwheel. ;Ju 52/3mg5e :Similar to g4e, but powered by three BMW 132T-2 engines, it could be fitted with interchangeable floats, skis, and wheeled landing gear. ;Ju 52/3mg6e :Transport version equipped with extra radio gear and autopilot, could also be fitted with a degaussing ring ;Ju 52/3mg7e :Transport version, capable of carrying 18 troops or 12 stretchers, featured autopilot and larger cargo doors ;Ju 52/3mg8e :Similar to g6e, but with improved radio and direction finding gear, a few were fitted with floats. ;Ju 52/3mg9e :Tropical version of g4e for service in North Africa, fitted with glider towing gear and strengthened undercarriage ;Ju 52/3mg10e :Similar to g9e, but could be fitted with floats or wheels, lacked deicing equipment ;Ju 52/3mg11e :Similar to g10e, but fitted with deicing equipment ;Ju 52/3mg12e :Land transport version, powered by three BMW 132L engines ;Ju 52/3m12e :Civilian version of Ju 52/3mg12e for Luft Hansa ;Ju 52/3mg13e :No details are known. ;Ju 52/3mg14e :Similar to g8e, but with improved armor, last German production version ;Avions Amiot, A.A.C. 1 Toucan :Postwar French version of g11e, 415 builtBlewett 2007, . ;Construcciones Aeronáuticas SA, CASA 352 :Postwar Spanish version, 106 built ;CASA 352L :Spanish version with Spanish BMW 132, ENMA Beta B-4 (license-built BMW 132) engines, 64 built ;C-79 :Designation assigned to a single example operated by the United States Army Air Forces ;D52 :Designation used by the Czechoslovak Air Force ;T2B :Designation used by the Spanish Air Force ;Tp 5 :Designation used by the Swedish Air Force ;K 45c: A single Ju 52/1mce (c/n 4004) was delivered to the Junkers factory at Limhamn in Sweden, where it was converted to a torpedo bomber as the K 45c.


Operators

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *


Accidents and incidents


Surviving aircraft


Airworthy

;France * T.2B-212 – Ju 52/3m airworthy with Amicale J.B. Salis in Cerny, Essonne. ;South Africa * T.2B-273 – CASA 352L airworthy at the South African Airways Museum Society in Germiston, Gauteng. Bought from United Kingdom, England in 1981 to celebrate the 50th anniversary of South African Airways. ;United States * T.2B-176 – CASA 352L airworthy at the Military Aviation Museum in Virginia Beach, Virginia. Formerly owned by Commemorative Air Force, operated by MAM since August 2010. Converted to Pratt & Whitney R-1340 geared engines, fitted with 3-blade propellers.


On display

;Argentina * T-158 – Ju 52/3mge in storage at the Museo Nacional de Aeronáutica de Argentina in Morón, Buenos Aires. ;Belgium * 6309 – Ju 52/3mg7e on static display at the Royal Museum of the Armed Forces and Military History in Brussels. ;Canada * T.2B-148 – CASA 352L on static display at the Royal Aviation Museum of Western Canada in Winnipeg, Manitoba. It has been converted to resemble a Ju 52/1m. ;Colombia * FAC-625 – Ju 52/3mg4e on static display at the Colombian Aerospace Museum in Tocancipá, Tocancipá, Cundinamarca. ;France * 6311 – Ju 52/3mg7e in storage with the Association des Mécaniciens Pilotes d'Aéronefs Anciens in Brétigny-sur-Orge, Brétigny-sur-Orge, Essonne. It was acquired by the organization in 2011 from the Museu do Ar, where it had been in storage. ;Germany * 363 – AAC.1 on static display at the Deutsches Museum in Munich, Bavaria. * 6320 – AAC.1 on display at Verein fur Historische Luftfahrzeuge in Monchengladbach, Monchengladbach, North Rhine-Westphalia. On loan from . * 6134 – Ju 52/3mg4e on static display at the in Dessau, Dessau, Saxony-Anhalt. * 6693 – Ju 52/3mg4e on static display at the in Wunstorf, Wunstorf, Lower Saxony. * 6821 – Ju 52/3mg4e on static display at the Technik Museum Speyer in Speyer, Speyer, Rhineland-Palatinate. * Junkers Ju 52 WkNr 130714, 130714 – Ju 52/3mg8e on display with Quax on behalf of Lufthansa, Deutsche Lufthansa Berlin-Stiftung in Büren, Westphalia, Büren, North Rhine-Westphalia. It was previously owned by aviation author Martin Caidin and has been refitted with Pratt & Whitney R-1340 engines. * T.2B-108 – Ju 52/3mte on static display at the Deutsches Technikmuseum in
Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitu ...
. * T.2B-127 – CASA 352L on static display at Flugausstellung Peter Junior in Hermeskeil, Hermeskeil, Rhineland-Palatinate. * T.2B-140 – CASA 352L on static display at the Technik Museum Sinsheim in Sinsheim, Sinsheim, Baden-Württemberg. * T.2B-144 – CASA 352L on static display at the Visitors Park at Munich Airport in Munich, Bavaria. * T.2B-209 – CASA 352L on static display at the Technik Museum Speyer in Speyer. * T.2B-257 – CASA 352L on static display at the Technik Museum Sinsheim in Sinsheim. ;Norway * 6306 – Ju 52/3mg3e on static display at the Norwegian Aviation Museum in Bodø, Bodø, Nordland. * 6657 – Ju 52/3mg4e on static display at the Norwegian Armed Forces Aircraft Collection in Gardermoen, Norway, Gardermoen, Viken. ;Poland * 48 – AAC.1 on static display at the Polish Aviation Museum in Kraków. ;Portugal * 6304 – Ju 52/3mg3e on static display at the Museu do Ar in Sintra, Sintra, Lisbon. ;Serbia * 7208 – AAC.1 on static display at the Aeronautical Museum Belgrade in Surčin, Surčin, Belgrade. ;Spain * T.2B-211 – CASA 352L on static display at the Museum of Aeronautics and Astronautics (Madrid), Museo del Aire in Cuatro Vientos, Cuatro Vientos, Madrid. * T.2B-246 – CASA 352L on static display at Torrejon Air Base in Torrejón de Ardoz, Torrejón de Ardoz, Madrid. * T.2B-254 – CASA 352L on static display at the Museo del Aire in Cuatro Vientos, Madrid. ;Sweden * T.2B-142 – CASA 352L on static display at the in Ugglarp, Halland. ;United Kingdom * T.2B-272 – CASA 352L on static display at the Royal Air Force Museum Cosford in Cosford, Shropshire. ;United States * T.2B-244 – CASA 352L in storage at the National Museum of the United States Air Force in Dayton, Ohio. The aircraft was donated to the museum by the Spanish government in 1971. * T.2B-255 – CASA 352L on static display at the Steven F. Udvar-Hazy Center of the National Air and Space Museum in Chantilly, Virginia. * T.2B-262 – CASA 352L in storage at the Fantasy of Flight in Polk City, Florida.


Under restoration

;Switzerland * A-701 – Ju 52/3mg4e under restoration to airworthy with in Dübendorf, Zürich. * A-703 – Ju 52/3mg4e under restoration to airworthy with Ju-Air in Dübendorf, Zürich. * T.2B-165 – CASA 352L under restoration to airworthy with Ju-Air in Dübendorf, Dübendorf, Zürich. It was previously on public display at Düsseldorf Airport as D-CIAK.


Specifications (Junkers Ju 52/3m g3e)


Successor model: Ju 52 New Generation (Ju-52 NG)

In April 2022, 90 years after the first flight of the Ju 52/3m, the Swiss Junkers , Junkers Flugzeugwerke AG announced the successor model of the Ju 52, the Ju 52 New Generation. The Ju 52 New Generation will be able to carry 14 passengers and will have modern RED A03 engines and modern avionics. The market launch is not expected before 2025.


See also

;Other *2018 Ju-Air Junkers Ju 52 crash


References


Citations


Bibliography

* Afonso, Aniceto and Carlos de Matos Gomes. ''Guerra Colonial'' (in Portuguese). Lisbon: Editorial Notícias, 2000. . * Andersson, Lennart. "Chinese 'Junks': Junkers Aircraft Exports to China 1925-1940". ''Air Enthusiast'', No. 55, Autumn 1994, pp. 2–7. * Blewett, R. ''Survivors'' (Aviation Classics). Coulsdon, UK: Gatwick Aviation Society, 2007. . * * Craven, Wesley Frank, and Cate, James Lea, editors (1949). ''The Army Air Forces in World War II''
''Volume Two - Europe: Torch to Pointblank: August 1942-December 1943''
Air Force Historical Studies Office, . * * Gerdessen, Frederik. "Estonian Air Power 1918 – 1945". ''Air Enthusiast'', No. 18, April – July 1982. pp. 61–76. . * Green, William. ''Warplanes of the Third Reich''. New York: Doubleday, 1972. . * Grey, Charles Gibson and Leonard Bridgman. ''Jane's All the World's Aircraft 1938''. London: Newton Abott, David & Charles, 1972. . * Hoffmann, Peter. ''Hitler's Personal Security: Protecting The Fuhrer 1921-1945.'' New York: Da Capo Press, 2000. . * Jackson, A. J.''British Civil Aircraft 1919-59, Vol. 2''. London: Putnam, 1960. * Jane, Fred T. "The Junkers Ju 52/3m." ''Jane's Fighting Aircraft of World War II''. London: Studio, 1946. . * * * Morzik, Generalmajor Fritz
"German Air Force Air Lift Operations"
USAF Historical Division, 1961. * Smith, J. R. "Aircraft Profile No. 177: The Junkers Ju 52 Series". ''Profile Publications Ltd'', 1966. * Smith, J. R. and Antony L. Kay. ''German Aircraft of the Second World War''. London: Putnam, 1972. . * Weal, John. ''Jagdgeschwader 27 'Afrika. Oxford, UK: Osprey, 2003. .


Further reading

*


External links


Deutsche Lufthansa Berlin Stiftung

Junkers Ju 52/3m at the Norwegian Aviation Museum
{{Authority control 1930s German airliners 1930s German military transport aircraft World War II transport aircraft of Germany Junkers aircraft, Ju 052 Trimotors Low-wing aircraft Aircraft first flown in 1930 World War II aircraft of Finland