Site 41, also known as Lesobaza and SK-1, was a launch complex at the Plesetsk Cosmodrome in Russia. It consisted of a single pad, Site 41/1, and was used by R-7 derived rockets between 1959 and 1989.Site 41 was originally built for use by R-7A Semyorka missiles. During the Cuban Missile Crisis, an armed missile was placed on Site 41. It would have had a response time of 8-12 hours should an order have been given to launch it.