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Engines A-4
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| A-4 (V-2) | A-4 Blossom | RV-A Bumper | W-1A | W-1E | DF-1 | W-2A | |
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Engine |
Ofen-B | Ofen-B | Ofen-B | RD-100 | RD-100 | RD-100 | RD-101 |
| Thrust s.l. (kN) | 252.0 | 267.8 | 266.9 | 267.0 | 271.5 | 267.0 | 364.8 |
| Thrust vac (kN) | 296.7 | 315.2 | 314.0 | 314.3 | 318.9 | 314.3 | 412.4 |
| Chamb. press. (psia) | 215 | 230 | 230 | 235 | 235 | 235 | 315 |
| Isp s.l. (N*s/kg) | 1991 | 2000 | 2000 | 1991 | 2020 | 1991 | 2099 |
| Isp vac (N*s/kg) | 2344 | 2354 | 2354 | 2344 | 2373 | 2344 | 2373 |
| Propellants | 75% Ethyl-Alcohol LOX |
75% Ethyl-Alcohol LOX |
75% Ethyl-Alcohol LOX |
75% Ethyl-Alcohol LOX |
75% Ethyl-Alcohol LOX |
75% Ethyl-Alcohol LOX |
92% Ethyl-Alcohol LOX |
| Propellant (tons) | 8.610 | 9.370 | 9.340 | 9.385 | 9.411 | 15.548 | 15.548 |
| Oxidiser rate | 1.24 | 1.32 | 1.32 | 1.28 | 1.28 | 1.28 | 1.45 |
| Flow rate (kg/s) | 126.6 | 133.9 | 133.4 | 134.1 | 134.4 | 134.1 | 173.8 |
| Burn time (s) | 68 | 70 | 70 | 70 | 70 | 116 | 89.5 |
