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The OTR-23 Oka ((ロシア語:OTP-23 «Ока»); named after Oka River) was a mobile theatre ballistic missile ((ロシア語:оперативно-тактический ракетный комплекс)) deployed by the Soviet Union near the end of the Cold War to replace the obsolete SS-1C 'Scud B'. It carried the GRAU index 9K714 and was assigned the NATO reporting name SS-23 Spider. The introduction of the Oka significantly strengthened Soviet theatre nuclear capabilities as its range and accuracy allowed it not only to strike hardened NATO targets such as airfields, nuclear delivery systems, and command centers, but moving targets as well. It also had a fast reaction time, being able to fire in approximately five minutes, and was nearly impossible to intercept, thereby allowing it to penetrate defenses.〔http://www.missilethreat.com/missilesoftheworld/id.142/missile_detail.asp MissileThreat: SS-23〕 The main components of the 9K714 system were:〔:ru:Ока (ОТРК)〕 * the transport and launch vehicle PU 9P71 ((ロシア語:cамоходная пусковая установка)), based on the amphibious BAZ-6944; * the similar transporter-loader TZM 9T230 ((ロシア語:транспортно-заряжающая машина)) with one spare missile and equipped with a hydraulic crane; * the re-supply vehicle TM 9T240 ((ロシア語:транспортная машина)), a ZIL-131 tractor with semi-trailer to transport a missile (in transport container 9Ya249) and a warhead (in 9Ya251 container). The operational life of the Oka was limited and controversial. The Soviet military asserted that the Oka only had a maximum range of 250 miles (400 km). American experts on the contrary estimated it had a greater range. In 1987, Mikhail Gorbachev proposed to George Schultz that he would unilaterally remove all Okas, if it would prevent the United States from building up its own short-range nuclear forces in Europe, despite the fact that the Soviet military was in favor of the Oka. Schultz however lacked the authority to act on the suggestion.〔David Hoffman, ''The Dead Hand: The Untold Story of the Cold War Arms Race and Its Dangerous Legacy'' (Random House, 2009), 283-284.〕 Gorbachev included the Oka in the class of systems to be discontinued as part of the INF Treaty as a gesture of goodwill, even though Soviet assertions of its maximum range did not put it outside of the specifications of the treaty. There was diplomatic controversy over this weapons system in April 1990 when the Soviets informed the US of their covert transfer of at least 120 missiles to the Warsaw Pact states of Czechoslovakia, Bulgaria, and East Germany during the time of negotiation of the Intermediate-Range Nuclear Forces Treaty. Evidence indicates that the missiles were transferred with conventional warheads only, although equipment to load Soviet nuclear warheads was apparently retained.〔https://fas.org/nuke/guide/russia/theater/ss-23.htm SS-23 SPIDER - Russian / Soviet Nuclear Forces〕 == Missile Variants == * The 9M714B missile armed with the AA-60 (9N63) nuclear warhead and possessing a maximum range of 500 km. * The 9M714F missile armed with a FRAG-HE warhead weighing 450 kg and possessing a maximum range of 450 km. * The 9M714K missile armed with a submunitions warhead 9N74K weighing 715 kg and possessing a maximum range of 300 km. In addition to these warheads, the SS-23 was also reported to be able to deliver chemical munitions. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「OTR-23 Oka」の詳細全文を読む スポンサード リンク
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