Global Rocket 1

Global Rocket 1, or GR-1, was a Soviet fractional orbital bombardment system intercontinental ballistic missile designed under chief designer Sergei Korolev, with unofficial work beginning on March 15, 1962, a draft project completed that May, and official authorization on September 24, 1962, before development was halted in 1964 and the project was cancelled, officially over engine delays. It measured 35.505 meters in length and 2.85 meters in diameter, had a three-stage liquid oxygen and kerosene propulsion system with an NK-9 cruise engine, launched at 116 tonnes, and was designed to carry a single 1,500 kilogram nuclear warhead of 2,200 kilotons yield able to strike anywhere on Earth from a low orbit of 150 kilometers, intended to defeat emerging American anti-ballistic missile defenses despite lower accuracy than conventional ICBMs. It was never deployed operationally, and the concept was permanently foreclosed by the 1972 Anti-Ballistic Missile Treaty and the 1979 SALT II agreement. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/