The Heinkel He 50 was a

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

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 vast majority of the world's countries—including all of the great powers—forming two opposin ...

-era

dive bomber A dive bomber is a bomber aircraft that dives directly at its targets in order to provide greater accuracy for the bomb it drops. Diving towards the target simplifies the bomb's trajectory and allows the pilot to keep visual contact througho ...

, originally designed for the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender ...

. Serving in ''

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-Fliegerabtei ...

'' prewar dive-bombing units, the He 50 served until almost the end of World War II as a night harassment bomber.

Design and development

In 1931, the

Japanese Navy , abbreviated , also simply known as the Japanese Navy, is the maritime warfare branch of the Japan Self-Defense Forces, tasked with the naval defense of Japan. The JMSDF was formed following the dissolution of the Imperial Japanese Navy (IJN) ...

placed an order with the

Heinkel Heinkel Flugzeugwerke () was a German aircraft manufacturing company founded by and named after Ernst Heinkel. It is noted for producing bomber aircraft for the Luftwaffe in World War II and for important contributions to high-speed flight, with ...

aircraft company for a two-seat dive bomber, capable of carrying 250 kg (550 lb) of bombs, stressed for

catapult A catapult is a ballistic device used to launch a projectile a great distance without the aid of gunpowder or other propellants – particularly various types of ancient and medieval siege engines. A catapult uses the sudden release of stored p ...

launches, and capable of using either wheeled or

float Float may refer to: Arts and entertainment Music Albums * ''Float'' (Aesop Rock album), 2000 * ''Float'' (Flogging Molly album), 2008 * ''Float'' (Styles P album), 2013 Songs * "Float" (Tim and the Glory Boys song), 2022 * "Float", by Bush ...

undercarriage Undercarriage is the part of a moving vehicle that is underneath the main body of the vehicle. The term originally applied to this part of a horse-drawn carriage, and usage has since broadened to include: *The landing gear of an aircraft. *The ch ...

s.Eden and Moeng, 2002, p. 830. A

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 prototyping, software programming. A prototyp ...

, the Heinkel He 50aW, was completed in the summer of 1931. It was a

biplane A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While ...

of mixed construction. The aircraft had twin floats and was powered by a

Junkers L5 The Junkers L 5 was a six-cylinder, water-cooled, inline engine for aircraft built in Germany during the 1920s. First run in 1925, it was a much enlarged development of the Junkers L2. Design and development The Junkers L5 was a development of J ...

inline engine. The engine was found to be underpowered. A second prototype, the He 50aL, was built, powered by a

Siemens Jupiter The Bristol Jupiter was a British nine-cylinder single-row piston radial engine built by the Bristol Aeroplane Company. Originally designed late in World War I and known as the Cosmos Jupiter, a lengthy series of upgrades and developments turn ...

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 ca ...

, having a wheeled undercarriage. A second He 50aL was built and redesignated He 50b. Based on the He 50b, a third prototype designated Heinkel He 66 was completed for the Japanese Navy, and used as the basis of the

Aichi D1A The Aichi D1A or Navy Type 94/96 Carrier Bomber ( Allied reporting name "Susie") was a Japanese carrier-based dive bomber of the 1930s. A single-engine, two-seat biplane based on the Heinkel He 50, the D1A was produced by Aichi for the Imperia ...

.Eden and Moeng, 2002, p. 831. The He 50 was an equal-

span Span may refer to: Science, technology and engineering * Span (unit), the width of a human hand * Span (engineering), a section between two intermediate supports * Wingspan, the distance between the wingtips of a bird or aircraft * Sorbitan ester ...

biplane based on a rectangular-section

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 ...

with a primary structure of welded steel tube construction, faired out to an oval shape by wooden formers and stringers and covered with fabric except in the extreme nose, which was skinned in light alloy. The wings were of fabric-covered wooden construction with a marginal stagger and very slight

sweep Sweep or swept may refer to: Cleaning * Sweep, the action of using a brush to clean * Chimney sweep, a worker who clears ash and soot from chimneys * Street sweeper, a person's occupation, or a machine that cleans streets * Swept quartz, a clean ...

, carrying

aileron An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in roll (or movement around ...

s on all four panels.

Operational history

The He 50aL was redesignated He 50 V1 and demonstrated to the German Defence Ministry in 1932. This resulted in an order for three development aircraft, and a production batch of 60 He 50A-1 aircraft, which were built during the summer of 1933. The

Republic of China Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast ...

placed an order for 12 He 50As, but modified with an engine

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 ...

added and designated He 66b. These aircraft were commandeered by the ''Luftwaffe'' and redesignated He 50B. In 1935, the He 50 was delivered to the ''Luftwaffe''s first dive bomber unit, and later partially equipped nine other dive bombing units. The He 50, however, was steadily replaced by the

Henschel Hs 123 The Henschel Hs 123 was a single-seat biplane dive bomber and close-support attack aircraft flown by the German ''Luftwaffe'' during the Spanish Civil War and the early to midpoint of World War II. It proved to be robust, durable and effective e ...

and

Junkers Ju 87 The Junkers Ju 87 or Stuka (from ''Sturzkampfflugzeug'', "dive bomber") was a German dive bomber and ground-attack aircraft. Designed by Hermann Pohlmann, it first flew in 1935. The Ju 87 made its combat debut in 1937 with the Luftwaffe's Con ...

, after which He 50s were transferred to dive bomber

training Training is teaching, or developing in oneself or others, any skills and knowledge or Physical fitness, fitness that relate to specific practicality, useful Competence (human resources), competencies. Training has specific goals of improving on ...

units. In spring 1943, following the success of the Soviet VVS's

Night Witches "Night Witches" (german: die Nachthexen; russian: Ночные ведьмы, ) was a World War II German nickname for the all-female military aviators of the 588th Night Bomber Regiment, known later as the 46th "Taman" Guards Night Bomber Aviat ...

units against the ''Wehrmacht Heer''s frontline encampments while flying their

Polikarpov Po-2 The Polikarpov Po-2 (also U-2, for its initial ''uchebnyy'', 'training', role as a flight instruction aircraft) served as an all-weather multirole Soviet biplane, nicknamed ''Kukuruznik'' (russian: Кукурузник,Gunston 1995, p. 292. NAT ...

biplanes on nocturnal harassment raids, surviving He 50s were rounded up from training schools and delivered to night ground attack units operating on the Eastern Front. The He 50 was used to conduct night harassment sorties on the Eastern Front until September 1944, when the units were disbanded. According to an author Lennart Andersson, twelve He 66 were allegedly ordered by China in 1934, but not delivered, and an information, that twelve ex-Luftwaffe He 50Bs were sent to China in 1936 instead, is a fiction, without a trace in archives.Andersson, Lennart (2008). ''A History of Chinese Aviation - Encyclopedia of Aircraft and Aviation in China until 1949''. AHS. , p. 269-270.

Variants

;He 50aW :First prototype as a

floatplane A floatplane is a type of seaplane with one or more slender floats mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, ...

, powered by a 291 kW (390 hp)

inline engine, badly damaged in a forced landing. ;He 50aL :Second prototype as a landplane, powered by a 365 kW (490 hp)

Siemens Jupiter VI The Bristol Jupiter was a British nine-cylinder single-row piston radial engine built by the Bristol Aeroplane Company. Originally designed late in World War I and known as the Cosmos Jupiter, a lengthy series of upgrades and developments tur ...

. ;He 50b :Third prototype designated HE 66 for export to Japan, three more completed for German evaluation, powered by a 373 kW (600 hp)

Bramo 322 The Siemens-Halske Sh 22 (also known as SAM 22) was a nine-cylinder aircraft radial engine manufactured by Siemens & Halske in Germany in the 1930s. Following the reorganization of its manufacturer and change in military nomenclature, the engine ...

B radial. ;He 50A :Dive bomber, reconnaissance version for the ''Luftwaffe'', 60 aircraft built. ;He 50L :Redesignated of the HE 50A, production model, Heinkel produced 25, Bayerische Flugzeugwerke produced 35, powered by a 373 kW (600 hp) Bramo 322B radial. ;He 66aCh :12 exported to China, powered by a 358 kW (480 hp)

Siemens Jupiter VIIF The Bristol Jupiter was a British nine-cylinder single-row piston radial engine built by the Bristol Aeroplane Company. Originally designed late in World War I and known as the Cosmos Jupiter, a lengthy series of upgrades and developments tur ...

radial. ;He 66bCh :Powered by a Bramo 322B engine, 12 built for export to China, but impressed into ''Luftwaffe'' service as HE 50B, later delivered to

Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...

and remained in storage from January 1936 until July 1937, transferred to

Peking } Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...

for limited service in the 2nd Sino-Japanese War. ; Aichi D1A1 :Some He 66 reconnaissance aircraft were built by

Aichi is a prefecture of Japan located in the Chūbu region of Honshū. Aichi Prefecture has a population of 7,552,873 () and a geographic area of with a population density of . Aichi Prefecture borders Mie Prefecture to the west, Gifu Prefectu ...

in Japan. ; Aichi D1A2 :Improved version of the Aichi D1A1.

Operators

;: *

- one prototype HE 50b ;: 12 HE 66aCh, 12 HE 66bCh ;: 60 HE 50A in ''

'' service ; *

Spanish Air Force , colours = , colours_label = , march = Spanish Air and Space Force Anthem , mascot = , anniversaries = 10 December , equipment ...

Specifications (He 50A)

Notes

Bibliography

* *Donald, D., ed. ''Warplanes of the Luftwaffe: Combat Aircraft of Hitler’s Luftwaffe, 1933–1945''. London: Aerospace Publishing, 2001. . *Eden, Paul and Soph Moeng, eds. ''The Complete Encyclopedia of World Aircraft''. London: Amber Books Ltd., 2002. . * Gerdessen, Frederik. "Estonian Air Power 1918 – 1945". ''

Air Enthusiast ''Air Enthusiast'' was a British, bi-monthly, aviation magazine, published by the Key Publishing group. Initially begun in 1974 as ''Air Enthusiast Quarterly'', the magazine was conceived as a historical adjunct to '' Air International'' maga ...

'', No. 18, April – July 1982. pp. 61–76. . *Kay, A.L. and J.R. Smith. ''German Aircraft of World War II''. Annapolis, Maryland: Naval Institute Press, 2002. .

External links

WRG - Luftwaffe Resource Group - Heinkel He 50
{{RLM aircraft designations Heinkel He 050 World War II dive bombers Biplanes He 050 Single-engined tractor aircraft Aircraft first flown in 1931