Operation Eisenhammer (

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 **Ge ...

; in

English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ...

''Operation Iron Hammer'') was a planned

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 ...

operation against power generators near

Moscow Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million ...

and Gorky in 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 ...

which was planned by

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 ...

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 ...

but eventually abandoned. The plan of the operation was created in 1943 by Professor Heinrich Steinmann (1899–1969), an official at the

Reich Air Ministry The Ministry of Aviation (german: Reichsluftfahrtministerium, abbreviated RLM) was a government department during the period of Nazi Germany (1933–45). It is also the original name of the Detlev-Rohwedder-Haus building on the Wilhelmstrasse ...

. A bombing raid was to destroy twelve

turbine A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating ...

s in water and steam power-plants near

, Gorky,

Tula Tula may refer to: Geography Antarctica *Tula Mountains * Tula Point India * Tulā, a solar month in the traditional Indian calendar Iran * Tula, Iran, a village in Hormozgan Province Italy * Tula, Sardinia, municipality (''comune'') in the ...

Stalinogorsk Novomoskovsk (russian: Новомоско́вск) is a city and the administrative center of Novomoskovsky District in Tula Oblast, Russia, located at the source of the Don and Shat Rivers. Population: 143,000 (1974); 107,000 (1959); 76 ...

and under the

Rybinsk Reservoir Rybinsk Reservoir ( rus, Ры́бинское водохрани́лище, r=Rybinskoye vodokhranilishche, p=ˈrɨbʲɪnskəɪ vədəxrɐˈnʲilʲɪɕə), informally called the Rybinsk Sea, is a water reservoir on the Volga River and its tributa ...

, as well as to attack certain substations, transmission lines and factories. If the attack were to succeed in destroying just two thirds of the turbines it would have knocked out about 75 percent of the power used by the Soviet defence industry. Only two smaller energy centers behind the

Urals The Ural Mountains ( ; rus, Ура́льские го́ры, r=Uralskiye gory, p=ʊˈralʲskʲɪjə ˈɡorɨ; ba, Урал тауҙары) or simply the Urals, are a mountain range that runs approximately from north to south through western ...

and in the

Soviet Far East The Russian Far East (russian: Дальний Восток России, r=Dal'niy Vostok Rossii, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in Northeast Asia. It is the easternmost part of Russia and the Asian continent; and is admini ...

would have been left intact. At this time, the Soviet Union had no turbine manufacturing capabilities and the only repair facility (in

Leningrad 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 ...

) had been heavily damaged. To accomplish the goal Mistel long-range bombers were to be employed. To destroy water turbines, special floating mines called ''Sommerballon'' ("summer balloon") were to be dropped into the water and then pulled by the current straight into the turbines. Due to the shortage of bombers and fuel, technical problems with the floating mine, and 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 ...

overrunning advance bases, the plan was postponed repeatedly. In February 1945, however, Eisenhammer was resurrected, and

Kampfgeschwader 200 ''Kampfgeschwader'' 200 (KG 200) (" irCombat Squadron 200") was a German ''Luftwaffe'' special operations unit during World War II. The unit carried out especially difficult bombing and transport operations and long-distance reconnaissance flight ...

assembled scout planes and about 100 Mistels near

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 ...

and waited for favourable weather to attack the plants around Moscow. After a US air raid on the primary

Rechlin Rechlin is a municipality in Mecklenburg-Western Pomerania, Germany, around 100 km (60 mi) northwest of Berlin. The town's airport has a long history and was the Luftwaffe's main testing ground for new aircraft designs in Nazi Germany. ...

''Erprobungstelle'' military aviation test headquarters facility, which destroyed 18 Mistels, the plan was postponed again and shortly afterwards finally dropped.

Sources

* ''Von Rhoden Collection of Research Materials on the Role of the German Air Force in World War II'' lists captured German records about Operation Eisenhamme
online
(

PDF Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. ...

). * James Lucas: ''Kommando: German Special Forces of World War Two'', 2003, . The book provides a detailed account of the planning of the operation. {{coord missing, Russia Eisenhammer