Mayak is a new family of Ukrainian launch vehicles under development by the Pivdenne,[1] [2] which would be manufactured by Pivdenmash.
The family is built in a modular fashion on the basis of a single line of main engines with thrust of roughly NaNtf for the first stage (RD-801 or RD-810) and 10tf for the upper stage (RD-809K derived from RD-8). Engines, control systems and ground equipment are largely derived from components of existing rocket families Zenit and Tsyklon.
The Mayak family is designed to cover small-lift, medium-lift and heavy-lift requirements. Published parameters of various configurations are:[2]
| Version | Mayak-L1 | Mayak-L2 | Mayak-M1 | Mayak-M2 | Mayak-H3 | Mayak-H5 | |
|---|---|---|---|---|---|---|---|
| Length (m) | 27.3 | 36.9 | 47.4 | 61.0 | 63.0 | 64.0 | |
| Diameter (m) | 2.7 | 3.0 | 3.9 | ||||
| Launch mass (t) | 95 | 165 | 370 | 495 / 515 | 1218 / 1236 | 2010 / 2015 | |
| Number of stages | 2 | 2 / 3 | |||||
| Stage 1 engines | 1 × RD-801 | 2 × RD-801 | 2 × RD-810 | 4 × RD-810 | 12 × RD-810 | 20 × RD-810 | |
| Stage 2 engines | 1 × RD-809K | 2 × RD-809K | 4 × RD-809K | 1 × RD-801B | |||
| Optional stage 3 booster | RD-809K | ||||||
| Propellants | LOX / kerosene | ||||||
| Payload to LEO (t) | 1.5 | 3 | 8.2 | 15.1 / – | 45.5 / – | 70.1 / – | |
| Payload to GTO (t) | – | – | 2.4 | – / 6.5 | 16 / 19 | 25 / 30.2 | |