The Zvezda M503 (built at

AO Zvezda AO, aO, Ao, or ao may refer to: Arts and entertainment * Adults Only, an entertainment rating * AO Music (AOmusic), a world-music fusion group consisting of Jay Oliver, Miriam Stockley and others * Ao: The Last Hunter, a 2010 prehistoric d ...

St Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...

) is a maritime 7

bank A bank is a financial institution that accepts deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital markets. Because ...

, 42 cylinder

diesel Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engin ...

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 ...

built in the 1970s by the Soviet Union. Its primary use was in Soviet missile boats that used three of these engines. This engine may have had other applications, but due to its extreme weight (), it would have been limited to ground or naval applications. 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 ...

tractor pulling Truck and tractor pulling, also known as power pulling, is a form of a motorsport competition in which antique or modified tractors pull a heavy drag or sled along an , track, with the winner being the tractor that pulls the drag the farthe ...

team designed a vehicle, named "Dragon Fire", around a methanol-fueled version of this engine; this modified engine is said to weigh including the gearbox, for use in the 4.5 ton tractor pulling class, making at 2,500 rpm.

Specifications (Zvezda M503A)

Zvezda engines

* Zvezda M503 , M533 , M520 B *

Zvezda M504 Zvezda means " star" in some Slavic languages, and may refer to: Entertainment * ''Zvezda'' (magazine), Russian literary magazine * Zvezda (TV channel), Russian TV channel * ''Star'' (2014 film), a Russian film * ''The Star'' (1953 film), a Ru ...

56 cylinders *

Zvezda M401 Zvezda means " star" in some Slavic languages, and may refer to: Entertainment * ''Zvezda'' (magazine), Russian literary magazine * Zvezda (TV channel), Russian TV channel * ''Star'' (2014 film), a Russian film * ''The Star'' (1953 film), a R ...

V12 marine turbodiesel engine * Zvezda M150 Pulsar V12 800 kW < 1,8 - 3 MW * ZE1600KZ ZE Energetika 4,8 MW V8 V12 < 3 - 5 or 7 MW *

Zvezda M507 Zvezda means " star" in some Slavic languages, and may refer to: Entertainment * ''Zvezda'' (magazine), Russian literary magazine * Zvezda (TV channel), Russian TV channel * ''Star'' (2014 film), a Russian film * ''The Star'' (1953 film), a R ...

2 × 56 = 112 cylinders *

Zvezda M501 Zvezda means " star" in some Slavic languages, and may refer to: Entertainment * ''Zvezda'' (magazine), Russian literary magazine * Zvezda (TV channel), Russian TV channel * ''Star'' (2014 film), a Russian film * ''The Star'' (1953 film), a R ...

: KMZ RD production * ADG1000 ADG6000 , 68B 68G , 85D 86B 86G at KMZ - RD and UDMZ * TM-300 inline 6 (460 hp 200 350 kW) or 8 * various V12 V16 and V18 from 3 5 MW 58D/A/E up to 8 9 MW * 68B , 68G , 85D 86B 86G 8,8 MW V18

Comparable engines

Napier Deltic The Napier Deltic engine is a British opposed-piston valveless, supercharged uniflow scavenged, two-stroke diesel engine used in marine and locomotive applications, designed and produced by D. Napier & Son. Unusually, the cylinders were disp ...

References

* {{Cite web , website=Old Machine Press , author=William Pearce , title=Yakovlev M-501 and Zvezda M503 and M504 Diesel Engines , date=5 September 2016 , url=https://oldmachinepress.com/2016/09/05/yakovlev-m-501-and-zvezda-m503-and-m504-diesel-engines/ 42-cylinder engines Marine diesel engines Radial diesel engines Diesel engines by model Inline radial engines Water-cooled radial engines