 The 3MS-II and 3MN-II, converted into tankers, were in service for much longer – up to the end of 1993 and before being replaced by the more advanced Il-78.The base was to have received the first production Tu-160 in 1987 but it went to Priluki, whose units had Tupolev Tu-22M experience.The first three Tu-160s not at Pryluky were incorporated into the 1096th Heavy Bomber Aviation Regiment in 1992.