The Zenit 3SLB or Zenit-3M was a Ukrainian expendable carrier rocket derived from the Zenit-2SB. It was a member of the Zenit family of rockets, which were designed by the Yuzhnoye Design Office.

Soyuz-5, is a Russian medium-lift launch vehicle developed by RKTs Progress. Designed to replace the Zenit, it will also serve as the base of the Yenisei, a super heavy-lift launch vehicle. Soyuz-5 fi