Istrebitel Sputnik Credit - © Mark Wade

Improved modernized ASAT/ABM. Reportedly deployed in 1980's without flight test, replacing IS-A. Accepted into military service in 1991. On a visit to LC-92 at Baikonur, Gorbachev was shown a mock-up of Naryad, which had been developed from Chelomei's original UR-100 dual-purpose concept by D A Polyukhin. A few tests of Naryad were sanctioned when the Buran shuttle was delayed. Since the Soviet Union had a large excess of ICBM's compared to the United States, the idea was to take the surplus ICBM's and equip them with anti-satellite/anti-ballistic missile homing vehicles in place of their nuclear warheads. This would have created a 'Space Echelon of Anti-rocket Forces'

Mass: 1,400 kg (3,000 lb).

• Frolov, I, Kosmodrom, "Kratkiy istoricheskiy obzor sovietskikh (rossiyskikh) voennikh sredstv", No. 8, 1999, p. 21..

• Voevodin, Sergey A, VSA072 - Space Apparatus, "Sergey A. Voevodin's Reports", . Accessed at: http://home.attbi.com/~rusaerog/spacecraft.html.

• Zheleznyakov, Aleksandr, Istoriya Rossiyskoi Sovetskoi Kosmonavtiki, "Istrebitel Sputnikov", Aleksandr Krasnikov Web Page, 1998. Accessed at: http://www.aha.ru/~kai/spaceflt/projects/istr.html.

• Yeteyev, Ivan, Operezhaya vremya, Ocherki, Moscow, 1999.. Collection of articles involving the life and works of Chief Designer Chelomei and the Khrunichev factory.