The RT-1 was an early intercontinental ballistic missile

Intercontinental ballistic missile

An intercontinental ballistic missile is a ballistic missile with a long range typically designed for nuclear weapons delivery...

 design that was tested but not deployed by the Soviet Union

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 during the Cold War

Cold War

The Cold War was the continuing state from roughly 1946 to 1991 of political conflict, military tension, proxy wars, and economic competition between the Communist World—primarily the Soviet Union and its satellite states and allies—and the powers of the Western world, primarily the United States...

. It was not assigned a NATO reporting name

NATO reporting name

NATO reporting names are classified code names for military equipment of the Eastern Bloc...

, but did carry the industry designation 8K95.

Development was led by OKB-1 (S. P. Korolev), and a total of five flight tests were carried out, of which two were successful. Two versions of the RT-1 were developed, with the first failing its first flight, but succeeding in its second in 1961. A second version was tested in 1965 with three flights, of which two failed. The RT-1 program was cancelled before any service.

Operators

: The Strategic Rocket Forces

Strategic Rocket Forces

The Strategic Missile Troops or Strategic Rocket Forces of the Russian Federation or RVSN RF , transliteration: Raketnye voyska strategicheskogo naznacheniya Rossiyskoy Federatsii, literally Missile Troops of Strategic Designation of the Russian Federation) are a military branch of the Russian...

were to operate the RT-1, but the program was cancelled before service entry.