Among numerous projects of RSRS of

Among numerous projects of RSRS of different designs, two-stage heavy launchers with vertical take-off and horizontal landing of the re-entry first stage are considered as the first phase. With the present-day state of progress of space technology, creation of a partially reusable launcher with the winged first stage and expendable second stage is most actual by 2015-2020 which will allow decreasing the specific cost of injection-by a factor of 1.5 to 2. Fully reusable two-stage launching vehicles would allow decreasing the specific cost of injection by a factor of approximately five. However, the making thereof is associated with an essential increase of expenses