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The Degtyaryov machine gun (russian: Пулемёт Дегтярёвa Пехотный, Pulemyot Degtyaryova Pekhotny literally: "Degtyaryov's infantry machine gun") or DP-27/DP-28 is a
light machine gun A light machine gun (LMG) is a light-weight machine gun designed to be operated by a single infantryman, with or without an assistant, as an infantry support weapon. LMGs firing cartridges of the same caliber as the other riflemen of the ...
firing the
7.62×54mmR The 7.62×54mmR is a rimmed rifle cartridge developed by the Russian Empire and introduced as a service cartridge in 1891. Originally designed for the bolt-action Mosin–Nagant rifle, it was used during the late tsarist era and throughout th ...
cartridge that was primarily used by the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
, with service trials starting in 1927, followed by general deployment in 1928. Besides being the standard Soviet infantry
light machine gun A light machine gun (LMG) is a light-weight machine gun designed to be operated by a single infantryman, with or without an assistant, as an infantry support weapon. LMGs firing cartridges of the same caliber as the other riflemen of the ...
(LMG) during
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 ...
, with various modifications it was used in aircraft as a flexible defensive weapon, and it equipped almost all Soviet tanks in WWII as either a flexible bow machine gun or a co-axial machine gun controlled by the gunner. It was improved in 1943 producing the DPM, but it was replaced in 1946 with the RP-46 which improved on the basic DP design by converting it to use belt feed. The DP machine gun was supplemented in the 1950s by the more modern
RPD machine gun The RPD (russian: ручной пулемёт Дегтярёва, Ruchnoy Pulemyot Degtyaryova, English: Degtyaryov hand-held machine gun) is a 7.62x39mm light machine gun developed in the Soviet Union by Vasily Degtyaryov for the 7.62×39mm ...
and entirely replaced in Soviet service by the general purpose
PK machine gun The PK (russian: Пулемёт Калашникова, transliterated as ''Pulemyot Kalashnikova'', or "Kalashnikov's machine gun"), is a belt-fed general-purpose machine gun, chambered for the 7.62×54mmR rimmed cartridge. Designed in the ...
in the 1960s.


Design

The DP-27 is a light machine gun designed for the Soviet Red Army in the 1920s under the leadership of
Vasily Degtyaryov Vasily Alekseyevich Degtyaryov (russian: Васи́лий Алексе́евич Дегтярёв; 2 January 1880, Tula – 16 January 1949, Moscow) was a Soviet and Russian engineer who specialized in weapons design. He was awarded the title ...
(1880-1949), the first test model being the DP-26. Two test guns were manufactured and fired 5,000 rounds each from September 27–29, 1926, during which weaknesses were discovered in the extractor and firing pin mechanisms. After design improvements, two more guns were made and tested in December 1926, firing 40,000 rounds under adverse conditions, resulting in only .6% stoppages. However, changes to the bolt carrier and the chamber locking mechanism were still required. After this redesign the improved gun, now called the DP-27, was tested by the
Red Army The Workers' and Peasants' Red Army (Russian language, Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist R ...
at the Kovrov plant on January 17–21 of 1927, passing all tests and being approved for manufacture. A full year of service testing followed, after which the primary requested change was the addition of the large flash suppressor that is now considered one of the recognition features of the design. With further refinements, the DP was to be the primary light machine gun of the Red Army during WWII. The DP-27 was designed to fire the same
7.62×54mmR The 7.62×54mmR is a rimmed rifle cartridge developed by the Russian Empire and introduced as a service cartridge in 1891. Originally designed for the bolt-action Mosin–Nagant rifle, it was used during the late tsarist era and throughout th ...
(''R'' indicating ''rimmed'') ammunition as the main Soviet infantry rifle, the Mosin-Nagant, much simplifying ammunition logistics for Soviet infantry units. Of typical Russian design philosophy, the DP-27 was a sturdy and simple gun that was easy and cheap to manufacture, and could be relied upon to perform even in the most adverse conditions; it was capable of withstanding being buried in dirt, mud, or sand and still operating consistently. However, being magazine fed, it had a rate of fire similar to other light machine guns, like the
Bren light machine gun The Bren gun was a series of light machine guns (LMG) made by Britain in the 1930s and used in various roles until 1992. While best known for its role as the British and Commonwealth forces' primary infantry LMG in World War II, it was also used ...
, but low when compared to its main wartime rivals, the German
MG 34 The MG 34 (shortened from German: ''Maschinengewehr 34'', or "machine gun 34") is a German recoil-operated air-cooled general-purpose machine gun, first tested in 1929, introduced in 1934, and issued to units in 1936. It introduced an entirely n ...
/
MG 42 The MG 42 (shortened from German: ''Maschinengewehr 42'', or "machine gun 42") is a German recoil-operated air-cooled general-purpose machine gun used extensively by the Wehrmacht and the Waffen-SS during the second half of World War II. Enter ...
series, firing at a rate of 550rpm as compared to the 800-1,500rpm of the German general-purpose machine guns. The operating mechanism of the DP-27 is
gas-operated Gas-operation is a system of operation used to provide energy to operate locked breech, autoloading firearms. In gas-operation, a portion of high-pressure gas from the cartridge being fired is used to power a mechanism to dispose of the spent ...
, using a Kjellmann-Friberg flap locking design to lock the bolt against the chamber until the round had left the barrel, aided by a recoil spring. Ammunition came in the form of a 47-round circular pan magazine that attached to the top of the receiver. Because of the shape of its magazine, the DP-27 was nicknamed the "record player". Its main parts were a removable barrel with an integrated flash suppressor and gas cylinder, a receiver with the rear sight, a perforated barrel shroud/guide with the front sight, the bolt and locking flaps, the bolt carrier and gas piston rod, a recoil spring, stock and trigger mechanism group, a bipod for firing from prone positions, and the previously-mentioned pan magazine. In total, the first versions contained only 80 parts, indicating both the simplicity and ease of manufacture of the design. Early versions had 26 transverse cooling fins machined into the barrel, but it was found that these had little cooling effect and so were deleted in 1938, further easing manufacture. The design had several weaknesses that would eventually be addressed in later variants. The pan magazines were prone to damage, while also being difficult and time-consuming to reload. The bipod mechanism was weak and likely to fail if not handled with care. The recoil spring's location near the barrel led to overheating, causing it to lose proper spring
temper Temper, tempered or tempering may refer to: Heat treatment * Tempering (metallurgy), a heat treatment technique to increase the toughness of iron-based alloys ** Temper mill, a steel processing line * Tempering (spices), a cooking technique where ...
. Typical of
light machine gun A light machine gun (LMG) is a light-weight machine gun designed to be operated by a single infantryman, with or without an assistant, as an infantry support weapon. LMGs firing cartridges of the same caliber as the other riflemen of the ...
s of the era, the 47-round magazines made sustained fire impossible. In contrast, the German
MG-34 The MG 34 (shortened from German: ''Maschinengewehr 34'', or "machine gun 34") is a German recoil-operated air-cooled general-purpose machine gun, first tested in 1929, introduced in 1934, and issued to units in 1936. It introduced an entirely ne ...
/
MG-42 The MG 42 (shortened from German: ''Maschinengewehr 42'', or "machine gun 42") is a German recoil-operated air-cooled general-purpose machine gun used extensively by the Wehrmacht and the Waffen-SS during the second half of World War II. Ente ...
were continuous belt-fed
general-purpose machine gun A general-purpose machine gun (GPMG) is an air-cooled, usually belt-fed machine gun that can be adapted flexibly to various tactical roles for light and medium machine guns. A GPMG typically features a quick-change barrel design calibered for v ...
s and provided a sustained fire capability the DP series could not match.


Designation

The Degtyaryov machine gun was accepted for Red Army service in 1927 with the official designation 7,62-мм ручной пулемет обр. 1927 г (7.62mm Hand-Held Machine Gun Model 1927). It was called the ДП-27 (DP-27), although some western sources refer to it as the DP-28.


History

Despite its numerous problems, the DP had a reputation as a relatively effective light support weapon. It was nicknamed the "Record player" (proigryvatel') by
Red Army The Workers' and Peasants' Red Army (Russian language, Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist R ...
troops because of its disc-shaped pan magazine. Many were captured by the
Finnish army The Finnish Army ( Finnish: ''Maavoimat'', Swedish: ''Armén'') is the land forces branch of the Finnish Defence Forces. The Finnish Army is divided into six branches: the infantry (which includes armoured units), field artillery, anti-aircraf ...
in the
Winter War The Winter War,, sv, Vinterkriget, rus, Зи́мняя война́, r=Zimnyaya voyna. The names Soviet–Finnish War 1939–1940 (russian: link=no, Сове́тско-финская война́ 1939–1940) and Soviet–Finland War 1 ...
and the
Continuation War The Continuation War, also known as the Second Soviet-Finnish War, was a conflict fought by Finland and Nazi Germany against the Soviet Union from 1941 to 1944, as part of World War II.; sv, fortsättningskriget; german: Fortsetzungskrieg. A ...
and partially replaced the Lahti-Saloranta M/26. The DP received the nickname ''Emma'' in Finnish service after a popular
waltz The waltz ( ), meaning "to roll or revolve") is a ballroom and folk dance, normally in triple ( time), performed primarily in closed position. History There are many references to a sliding or gliding dance that would evolve into the wa ...
, again due to the magazine's resemblance to a record player. In the summer of 1944, the Finnish army had about 3400 Finnish-made Lahti-Salorantas and 9000 captured Soviet-made Degtyarevs on the front. Captured examples were operated by the
Volkssturm The (; "people's storm") was a levée en masse national militia established by Nazi Germany during the last months of World War II. It was not set up by the German Army, the ground component of the combined German ''Wehrmacht'' armed forces, ...
, the late-war German militia, and in German service the Degtyarev received the designation ''Leichtes Maschinengewehr'' 120(''r''). The Chinese Nationalists received 5,600 DPs from the USSR and used them in the
Second Sino-Japanese War The Second Sino-Japanese War (1937–1945) or War of Resistance (Chinese term) was a military conflict that was primarily waged between the Republic of China and the Empire of Japan. The war made up the Chinese theater of the wider Pacific T ...
and the
Chinese Civil War The Chinese Civil War was fought between the Kuomintang-led government of the Republic of China and forces of the Chinese Communist Party, continuing intermittently since 1 August 1927 until 7 December 1949 with a Communist victory on main ...
. The
North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korean Peninsula and shares borders with China and Russia to the north, at the Yalu (Amnok) and T ...
n and
Chinese Communists The Chinese Communist Party (CCP), officially the Communist Party of China (CPC), is the founding and sole ruling party of the People's Republic of China (PRC). Under the leadership of Mao Zedong, the CCP emerged victorious in the Chinese Ci ...
used the DP in the
Korean War {{Infobox military conflict , conflict = Korean War , partof = the Cold War and the Korean conflict , image = Korean War Montage 2.png , image_size = 300px , caption = Clockwise from top:{ ...
and copied the DPM as the Type 53. Examples of all variants of the DP machine gun were given or sold to the
Viet Minh The Việt Minh (; abbreviated from , chữ Nôm and Hán tự: ; french: Ligue pour l'indépendance du Viêt Nam, ) was a national independence coalition formed at Pác Bó by Hồ Chí Minh on 19 May 1941. Also known as the Việt Minh Fro ...
in the
First Indochina War The First Indochina War (generally known as the Indochina War in France, and as the Anti-French Resistance War in Vietnam) began in French Indochina from 19 December 1946 to 20 July 1954 between France and Việt Minh (Democratic Republic of Vi ...
by the
USSR The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nati ...
and
Chinese Communists The Chinese Communist Party (CCP), officially the Communist Party of China (CPC), is the founding and sole ruling party of the People's Republic of China (PRC). Under the leadership of Mao Zedong, the CCP emerged victorious in the Chinese Ci ...
. Similarly, in the
Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...
to the NVA and
Vietcong , , war = the Vietnam War , image = FNL Flag.svg , caption = The flag of the Viet Cong, adopted in 1960, is a variation on the flag of North Vietnam. Sometimes the lower stripe was green. , active ...
. DPMs have also been recovered from
Taliban The Taliban (; ps, طالبان, ṭālibān, lit=students or 'seekers'), which also refers to itself by its state (polity), state name, the Islamic Emirate of Afghanistan, is a Deobandi Islamic fundamentalism, Islamic fundamentalist, m ...
fighters during the
War in Afghanistan War in Afghanistan, Afghan war, or Afghan civil war may refer to: *Conquest of Afghanistan by Alexander the Great (330 BC – 327 BC) * Muslim conquests of Afghanistan (637–709) *Conquest of Afghanistan by the Mongol Empire (13th century), see al ...
while DPs or DPMs have been spotted in 2014 in the
Northern Mali conflict {{Infobox military conflict , conflict = Mali War , partof = the Islamist insurgency in the Sahel and the War on terror , image = MaliWar.svg , image_size = 380 , caption = Military situation ...
.


Variants

* DPM, modernized version adopted in 1943–44, with a more robust bipod fastened to the cooling jacket and the recoil spring housed in a tube projecting from the rear of the receiver which necessitated a pistol grip for this model of the weapon (manufactured in China as the Type 53) * DA, for mounting and loading in aircraft (Дегтярёва авиационный, ''Degtyaryova Aviatsionny''; ДА). Also used in tandem mounts known as DA-2. Employed in the early versions of the
Tupolev TB-3 The Tupolev TB-3 (russian: Тяжёлый Бомбардировщик, Tyazhyolyy Bombardirovshchik, Heavy Bomber, civilian designation ANT-6) was a monoplane heavy bomber deployed by the Soviet Air Force in the 1930s and used during the early ...
bomber and in the
Polikarpov R-5 The Polikarpov R-5 (russian: Р-5) was a Soviet reconnaissance bomber aircraft of the 1930s. It was the standard light bomber and reconnaissance aircraft of the Soviet Air Force for much of the 1930s, while also being used heavily as a civilian ...
and
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. NA ...
army cooperation aircraft. The DA weighted 7.1 kg empty and 11.5 kg with standard ammunition load. Its rate of fire was 600 rounds per minute. It was built between 1928 and March 1930 with 1,200 units delivered. It was soon superseded by the
ShKAS The ShKAS (Shpitalny-Komaritski Aviatsionny Skorostrelny, Shpitalny-Komaritski rapid fire for aircraft; Russian: ШКАС - Шпитального-Комарицкого Авиационный Скорострельный) is a 7.62 mm calibre ...
, which had a much higher rate of fire. * DT and DTM, for mounting and loading in
armoured fighting vehicle An armoured fighting vehicle (AFV) is an armed combat vehicle protected by armour, generally combining operational mobility with offensive and defensive capabilities. AFVs can be wheeled or tracked. Examples of AFVs are tanks, armoured cars, ...
s (Дегтярёва танковый, ''Degtyaryova Tankovy''; ДТ and ДТМ) * DTM-4, (ДТМ-4) quad mounted variant. * RP-46 ( - company machine gun): metallic-belt fed version adopted in 1946 with a heavier barrel to allow prolonged sustained fire. About 500 rounds could be fired continuously before the barrel had to be swapped or allowed to cool down. Also had a user-adjustable gas system, with three holes of varying diameters provided, to cope with varying environmental conditions and residue buildup. Although the empty weight of the RP-46 exceeded that of DP by 2.5 kg, when considered together with a single ammo box of 250 rounds, the RP-46 weighed 10 kg less than the DP together with the same amount of ammunition in DP pans. The RP-46 remained in Soviet service for 15 years before it was replaced (together with the
SGM SGM, or sgm, may refer to: Science * Second Generation Multiplex DNA profiling system - also see SGM+ * Scanning gate microscopy * Spherical Grating Monochromator beamline of Canadian Light Source * Semi-global matching algorithm in stereo i ...
) by the
PK machine gun The PK (russian: Пулемёт Калашникова, transliterated as ''Pulemyot Kalashnikova'', or "Kalashnikov's machine gun"), is a belt-fed general-purpose machine gun, chambered for the 7.62×54mmR rimmed cartridge. Designed in the ...
. The RP-46 was later manufactured in China as the Type 58 and in North Korea as the Type 64. The RP-46 could still fire from DP-style magazines by removing its belt-feeding system.


Users

*: DPM and RP-46 variants *: RP-46 variant. *: RP-46 variant. *: RP-46 variant. *: RP-46 variant. *: RP-46 variant. *: RP-46 variant. *: Received 5,600 from the Soviet Union as aid from 1938. *: DPM and RP-46 locally built as Type 53 and Type 58 *: RP-46 and Type 58 variants. *: RP-46 variant. *: DP, DT, DTM, DPM and RP-46 variants. * : ''DP'', DPM and RP-46 variants. * *: RP-46 variant. *: RP-46 variant. *: Used captured examples during World War II. * : DT and DTM variants. *: Captured models were issued to the
Volkssturm The (; "people's storm") was a levée en masse national militia established by Nazi Germany during the last months of World War II. It was not set up by the German Army, the ground component of the combined German ''Wehrmacht'' armed forces, ...
. *: ''DP'', DPM and DTM variants. Locally produced as M-27. * *: Iraqi insurgents used RP-46 variant. *: RP-46 variant. *: RP-46 variant. *: RP-46 variant. *: DPM, Type 53 and RP-46 variants. *
Palestine Liberation Organization The Palestine Liberation Organization (PLO; ar, منظمة التحرير الفلسطينية, ') is a Palestinian nationalist political and militant organization founded in 1964 with the initial purpose of establishing Arab unity and sta ...
*: Used by Polish Army in USSR during World War II and then during the Cold War era (DPM and RP-46 variants). *
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...
: DP and DPM used after the war. *: RP-46 variant. *: RP-46 variant. *Degtyarev DP DPM RP-46 (Russia / USSR)
at world.guns.ru
* *: Type 58 variant *: RP-46 variant. *: RP-46 variant. * : Regular ''DP27''. Used by the Martyrs Of Islam rebel faction. *: RP-46 variant. *: RP-46 variant. *: DPM, Type 53, RP-46 and Type 58 variants * * *: RP-46 variant. *


See also

*
Kucher Model K1 The Kucher K1, also known as the Danuvia M53 K1, was a Hungarian magazine-fed submachine gun designed by József Kucher in 1951 for use by paramilitary, paratrooper and police units, based on the Danuvia 44.M prototype submachine gun. It was pr ...
* Lahti-Saloranta M/26 * Lewis gun * List of Russian weaponry


References

*


External links


The Battles of the Winter War



Soviet DT-28 Repair and Operation Manual

Degtyarov machine gun variants
* {{DEFAULTSORT:Degtyaryov Machine Gun 7.62×54mmR machine guns Light machine guns World War II infantry weapons of the Soviet Union World War II machine guns Machine guns of the Soviet Union Soviet inventions Weapons and ammunition introduced in 1927 Degtyarev Plant products