| RD-68M Yuzhnoye N2O4/UDMH rocket engine. 285 kN. R-36 stage 1 attitude control engine. Out of Production. 4 nozzles, maximum 42 degree gimbal angle. More... |
| RD-69M Yuzhnoye N2O4/UDMH rocket engine. 54.3 kN. R-36 stage 2 attitude control engine. Out of Production. 4 nozzles, maximum 50 degree gimbal angle. More... |