# Comparison of orbital rocket engines

This page is an incomplete list of orbital rocket engine data and specifications.

## Current, upcoming, and in-development rocket engines

| Engine | Origin | Designer | Vehicle | Status | Use | Propellant | Power cycle | Specific impulse (s) | Thrust (N) | Chamber pressure (bar) | Mass (kg) | Thrust:​weight ratio | Oxidiser:​fuel ratio |
| AJ-10-190 | USA | Aerojet | Space Shuttle, Orion, Apollo CSM | Active | Upper | N$_2$O$_4$/MMH | Pressure-fed | 316 | 26,689 | 8.62 | 118 | 23.08 | |
| Archimedes | New Zealand USA | Rocket Lab | Neutron | Development | 1st, 2nd | CH$_4$ / LOX | Staged, oxidizer-rich | | 730,000 | | | | |
| Aeon-R | USA | Relativity Space | Terran R | Development | 1st, 2nd | CH$_4$ / LOX | Gas generator | | 1,147,000 | | | | |
| BE-3U | USA | Blue Origin | New Glenn | Active | 2nd | LH$_2$ / LOX | Expander, open | 445 | 765,000 | | | | |
| BE-4 | USA | Blue Origin | New Glenn, Vulcan | Active | 1st | CH$_4$ / LOX | Staged, oxidizer-rich | 340 | 2,400,000 | 138 | | | |
| BE-7 | USA | Blue Origin | Blue Moon | Development | 1st | LH$_2$ / LOX | Expander, open | | 44,000 | | | | |
| CE-20 | India | LPSC | GSLV Mk III | Active | Upper | LH$_2$ / LOX | Gas generator | 434 | 196,500 | 60.00 | 588 | 34.1 | 5.05 |
| CE-7.5 | India | LPSC | GSLV Mk II | Active | Upper | LH$_2$ / LOX | Staged | 454 | 73,500 | 58 | 445 | 16.85 | |
| E2 | USA | ABL Space Systems | RS1 | Active | 1st | RP-1 / LOX // Jet-A / LOX | Gas generator | | 53,800 | 64 | | | |
| E2 Vacuum | USA | ABL Space Systems | RS1 | Active | 2nd | RP-1 / LOX // Jet-A / LOX | Gas generator | | 57,800 | | | | |
| Engine-2 | USA | Vast | TBA | Development | 1st | RP-1 / LOX | Staged, oxidizer-rich | 327 290 (SL) | 100,000 | 100 | | | 2.62 |
| Engine-2 Vacuum | USA | Vast | TBA | Development | 2nd | RP-1 / LOX | Staged, oxidizer-rich | 365 | 100,000 | | | | 2.62 |
| GEM 63 | USA | Northrop Grumman | Atlas V | Active | Booster | HTPB | Solid fuel | 279.06 (Vac) | 1,662,745 | | 49,300 with fuel | | |
| GEM 63XL | USA | Northrop Grumman | Vulcan | Active | Booster | HTPB | Solid fuel | 280.3 (Vac) | 2,025,720 | | 53,400 with fuel | | |
| Hadley | USA | Ursa Major Technologies | Rocket 4 | Active | 2nd | RP-1 / LOX | Staged, oxidizer-rich | | 22,241 (SL) | 62 | | | |
| Helix | Germany | Rocket Factory Augsburg | RFA One | Development | 1st, 2nd | RP-1/LOX | Staged combustion | 350, 325 (SL) | 100,000 | 100 | | | |
| HyPER-15 | South Korea | Innospace | Hanbit-Nano, -Micro, -Mini | Development | 1st | Paraffin / LOX | Electric pump | 292 | 150,000 | | | | |
| LE-5B | Japan | Mitsubishi, JAXA | H-IIA, H-IIB | Active | Upper | LH$_2$ / LOX | Expander, open | 447 | 137,000 | 36.0 | 269 | 51.93 | 5 |
| LE-7A | Japan | Mitsubishi, JAXA | H-IIA, H-IIB | Active | 1st | LH$_2$ / LOX | Staged | 438 338 (SL) | 1,098,000 870,000 (SL) | 120 | 1,800 | 65.9 | 5.9 |
| LE-9 | Japan | Mitsubishi, JAXA | H-3 | Development | 1st | LH$_2$ / LOX | Expander, open | 425 | 1,471,000 | 100 | 2,400 | 62.5 | 5.9 |
| Lightning 1 | USA | Firefly Aerospace | Alpha | Active | 2nd | RP-1 / LOX | Combustion tap-off | 322 | 70,100 | | | | |
| Merlin 1D FT | USA | SpaceX | Falcon 9 B5, Heavy | Active | 1st | RP-1 / LOX | Gas generator | 311 | 914,000 845,000 (SL) | 108.0 | 470 | 194.5 | |
| Merlin Vacuum 1D | USA | SpaceX | Falcon 9 B5, Heavy | Active | 2nd | RP-1 / LOX | Gas generator | 348 | 981,000 | | | | 2.36 |
| Miranda | USA | Firefly Aerospace | Antares 300 Series, MLV | Development | 1st | RP-1 / LOX | Combustion tap-off | 305 | 1,023,000 | | | | |
| M10 | Europe | Avio | Vega-E | Development | Upper | CH$_4$ / LOX | Expander, closed | 362 | 98,000 | | | | 3.4 |
| NK-33A (AJ26-62), 11Д111 / 14Д15 | Soviet Union | JSC Kuznetsov | Antares 100, Soyuz-2-1v | Retired | 1st | RP-1 / LOX | Staged, oxidizer-rich | 331 297 (SL) | 1,680,000 1,510,000 (SL) | 145 | 1,222 | 136.8 | |
| P120 | Europe | Avio | Ariane 6, Vega-C | Active | Booster, 1st | HTPB | Solid fuel | 279 | 4,650,000 | 105 | 153,000 with fuel | | |
| S139 | India | SDSC | PSLV | Active | 1st | HTPB | Solid fuel | 269 | 4,860,000 | 58 | 160,200 with fuel | | |
| Raptor | USA | SpaceX | Starship | Development | 1st, 2nd | CH$_4$ / LOX | Staged, full-flow | 350 327 (SL) | 2,750,000 (SL) | 350 | 1,525 | 184 | 3.6 |
| Raptor Vacuum | USA | SpaceX | Starship | Development | 2nd | CH$_4$ / LOX | Staged, full-flow | 380 est. | >2,750,000 | 350 | >1,525 | <184 | 3.6 |
| RD-0124, 14Д23 | Russia | KBKhA | Soyuz-2.1b, Soyuz-2-1v, Angara | Active | 2nd, 3rd | RP-1 / LOX | Staged, oxidizer-rich | 359 | 294,300 | 160 | 520 | 57.7 | |
| RD-0146D | Russia | KBKhA | Angara | Development | Upper | LH$_2$ / LOX | Expander, closed | 470 | 68,600 | 59 | | | |
| RD-107A, 14Д22 | Russia | NPO Energomash | Soyuz-FG, -2 | Active | 1st | RP-1 / LOX | Gas generator | 320.2 263.3 (SL) | 1,019,892 839,449 (SL) | 61.2 | 1,090 | 78.53 | |
| RD-108A, 14Д21 | Russia | NPO Energomash | Soyuz-FG, -2 | Active | 2nd | RP-1 / LOX | Gas generator | 320.6 257.7 (SL) | 921,825 792,377 (SL) | 55.5 | 1,075 | 75.16 | |
| RD-171M, 11Д520 | Russia | NPO Energomash | Soyuz-5, Zenit-2M, -3SL, -3SLB, -3SLBF | Active | 1st | RP-1 / LOX | Staged, oxidizer-rich | 337.2 309.5 (SL) | 7,904,160 7,256,921 (SL) | 250 | 9,300 | 79.57 | |
| RD-180 | Russia | NPO Energomash | Atlas V, III | Active | 1st | RP-1 / LOX | Staged, oxidizer-rich | 338.4 311.9 (SL) | 4,152,136 3,826,555 (SL) | 261.7 | 5,480 | 71.2 | 2.72 |
| RD-191 | Russia | NPO Energomash | Angara | Active | 1st | RP-1 / LOX | Staged, oxidizer-rich | 337.5 311.2 (SL) | 2,084,894 1,922,103 (SL) | 262.6 | 2,200 | 89.09 | |
| RD-276, 14Д14М | Russia | NPO Energomash | Proton-M | Active | 1st | N$_2$O$_4$ / UDMH | Staged, oxidizer-rich | 315.8 288 (SL) | 1,831,882 1,671,053 (SL) | 168.5 | 1,120 | 171.2 | |
| RD-801 | Ukraine | Pivdenne/​Pivdenmash | Mayak | Development | 1st | RP-1 / LOX | Staged, oxidizer-rich | 336 300.7 (SL) | 1,339,255 1,198,608 (SL) | 180 | 1,630 | | 2.65 |
| RD-809K | Ukraine | Pivdenne/​Pivdenmash | Mayak | Development | Upper | RP-1 / LOX | Staged, oxidizer-rich | 352 | 98,067 | | 330 | | 2.62 |
| RD-810 | Ukraine | Pivdenne/​Pivdenmash | Mayak, Zenit | Development | 1st | RP-1 / LOX | Staged, oxidizer-rich | 335.5 299 (SL) | 2,104,890 1,876,149 (SL) | 180 | 2,800 | | 2.65 |
| RD-861K | Ukraine | Pivdenne/​Pivdenmash | Cyclone-4M | Development | 2nd | N$_2$O$_4$ / UDMH | Gas generator | 330 | 77,629 | | 207 | | 2.41 |
| RD-870 | Ukraine | Pivdenne/​Pivdenmash | Cyclone-4M | Development | 1st | RP-1 / LOX | Staged, oxidizer-rich | 340 301.5 (SL) | 876,715 777,667 (SL) | | 1,353 | | 2.684 |
| Reaver 1 | USA | Firefly Aerospace | Alpha | Active | 1st | RP-1 / LOX | Combustion tap-off | 265 (SL) 295.6 (Vac) | 184,000 | 75 | | | |
| RL-10A-4-2 | USA | Aerojet Rocketdyne | Atlas IIIB, V | Retired | Upper | LH$_2$ / LOX | Expander, closed | 451 | 99,195 | 42 | 168 | 60.27 | 5.5 |
| RL-10B-2 | USA | Aerojet Rocketdyne | Delta III, IV, SLS | Active | Upper | LH$_2$ / LOX | Expander, closed | 465.5 | 110,093 | 44 | 301 | 37.27 | 5.88 |
| RL-10C-1 | USA | Aerojet Rocketdyne | Delta III, IV, SLS, Vulcan | Active | Upper | LH$_2$ / LOX | Expander, closed | 450 | 101,820 | 44 | 191 | 54.5 | 5.5 |
| RS-25 | USA | Rocketdyne | Space Shuttle, SLS | Active | 1st | LH$_2$ / LOX | Staged, fuel-rich | 452.3 366 (SL) | 2,279,000 1,860,000 (SL) | 206.4 | 3,526 | 53.79 | |
| Rutherford | New Zealand USA | Rocket Lab | Electron | Active | 1st | RP-1 / LOX | Electric pump | 311 | 24,900 25,000 (SL) | 55 | 35 | 72.8 (SL) | |
| Rutherford Vacuum | New Zealand USA | Rocket Lab | Electron | Active | 2nd | RP-1 / LOX | Electric pump | 343 | 25,800 | | | | |
| S200 | India | SDSC | GSLV Mk III | Active | Booster | HTPB | Solid fuel | 274.5 | 5,150,000 | | 207,000 with fuel | | |
| SCE-200 | India | LPSC | GSLV Mk III, ULV | Development | Upper, main | RP-1 / LOX | Staged, oxidizer-rich | 335 299 (SL) | 2,030,000 1,820,000 (SL) | 180 | 2,700 | | |
| SLS Solid Rocket Booster | USA | Orbital ATK | SLS | Active | Booster | PBAN | Solid fuel | 267 | 16,000,000 | | 730,000 with fuel | | |
| SLV-1 | India | Godrej & Boyce | PSLV | Active | Booster | HTPB | Solid fuel | 253 | 502,600 | 43 | 10,800 with fuel | | |
| SRB-A3 | Japan | IHI Aerospace, JAXA | H-IIA, H-IIB, Epsilon | Active | Booster | HTPB | Solid fuel | 283.6 | 2,305,000 2,150,000 (SL) | 111 | 76,600 with fuel | | |
| TEPREL-B | Spain | PLD Space | Miura 1 | Active | 1st | RP-1 / LOX | Pressure-fed | | 30,200 (SL) | | | | |
| TEPREL-C | Spain | PLD Space | Miura 5 | Development | 1st, 2nd | RP-1 / LOX | Gas-generator | | 190,000 (SL) | | | | |
| TQ-12 | China | Landspace | ZQ-2 | Active | 1st | CH$_4$ / LOX | Gas generator | 284 | 667,000 (SL) | 101 | | | |
| Vikas (rocket engine) | India | LPSC | PSLV, GSLV, GSLV Mk III | Active | 2nd, main, booster | N$_2$O$_4$ / UDMH | Gas generator | 262 | 680,500–804,500 600,500–756,500 (SL) | 53.0–58.5 | | | |
| Vinci | Europe | Snecma | Ariane 6 | Active | Upper | LH$_2$ / LOX | Expander, closed | 457 | 180,000 | 60 | 280 | 65.60 | 6.1 |
| Vulcain 2.1 | Europe | Snecma | Ariane 6 | Active | 1st | LH$_2$ / LOX | Gas generator | | 1,324,000 | 120.8 | 2,000 | 66.2 | |
| YF-21B | China | AALPT | Long March 2E, 2F, 3 | Active | Booster, 1st | N$_2$O$_4$ / UDMH | Gas generator | 260.66 (SL) | 740,400 (SL) | | | | |
| YF-21C | China | AALPT | Long March 2C, 2D, 3A, 3B, 3C, 4B, 4C | Active | 1st | N$_2$O$_4$ / UDMH | Gas generator | 260.7 (SL) | 740,400 (SL) | | | | |
| YF-25 | China | AALPT | Long March 3B, 3C | Active | Booster | N$_2$O$_4$ / UDMH | Gas generator | 260.66 (SL) | 740,400 (SL) | | | | |
| YF-22B | China | AALPT | Long March 2E, 2F | Active | 2nd | N$_2$O$_4$ / UDMH | Gas generator | 298.0 | 738,400 | | | | |
| YF-22C | China | AALPT | Long March 2C, 2D, 4B, 4C | Active | 2nd | N$_2$O$_4$ / UDMH | Gas generator | 298.0 | 742,040 | | | | |
| YF-22D | China | AALPT | Long March 3 | Active | 2nd | N$_2$O$_4$ / UDMH | Gas generator | 298.0 | 741,400 | | | | |
| YF-22E | China | AALPT | Long March 3A, 3B, 3C | Active | 2nd | N$_2$O$_4$ / UDMH | Gas generator | 298.0 | 741,400 | | | | |
| YF-40 | China | AALPT | Long March 4B, 4C | Active | 3rd | N$_2$O$_4$ / UDMH | Gas generator | 303 | 103,000 | | | | |
| YF-50D | China | AALPT | Long March 3B, 3C, 5, 7 | Active | Upper | N$_2$O$_4$ / UDMH | Pressure-fed | 315.5 | 6,500 | | | | |
| YF-73 | China | AALPT | Long March 3 | Active | 3rd | LH$_2$ / LOX | Gas generator | 420.0 | 44,150 | | | | |
| YF-75 | China | AALPT | Long March 3A, 3B, 3C | Active | 3rd | LH$_2$ / LOX | Gas generator | 438.0 | 78,450 | | | | |
| YF-75D | China | AALPT | Long March 5 | Active | 2nd | LH$_2$ / LOX | Expander, closed | 442.6 | 88,360 | 41 | 265 | 34 | 6.0 |
| YF-77 | China | AALPT | Long March 5 | Active | 1st | LH$_2$ / LOX | Gas generator | 428 316.7 (SL) | 700,000 518,000 (SL) | 102 | 1,054 | 50 | 5.5 |
| YF-79 | China | AALPT | Long March 9 | Development | 3rd | LH$_2$ / LOX | Expander, closed | 455.2 | 250,000 | 70 | | | 6.0 |
| YF-90 | China | AALPT | Long March 9 | Development | 2nd | LH$_2$ / LOX | Staged, fuel-rich | 453 | 2,200,000 | 183 | 4,800 | 46.74 | 6.0 |
| YF-100 | China | AALPT | Long March 7, 5 | Active | 1st | RP-1/ LOX | Staged, oxidizer-rich | 335.1 300(SL) | 1,339,480 1,199,190 (SL) | 180 | 1,912 | 64 | 2.6 |
| YF-115 | China | AALPT | Long March 6, 7 | Active | 2nd | RP-1/ LOX | Staged, oxidizer-rich | 341.5 | 182,400 | 120 | | | 2.5 |
| YF-130 | China | AALPT | Long March 9 | Development | 1st | RP-1/ LOX | Staged, oxidizer-rich | 308 (SL) | ~5,000,000 (SL) | 220 | ~6,500 | 78 | 2.62 |
| Zefiro 9A | Europe | Avio | Vega-C | Active | 3rd | HTPB | Solid fuel | 295.2 | 314,000 | 75 | 11,400 with fuel | | |
| Zefiro 40 | Europe | Avio | Vega-C | Active | 3rd | HTPB | Solid fuel | 293.5 | 1,304,000 | 115 | 39,206 with fuel | | |
| Zenith | USA | Stoke | Nova | Development | 1st | CH$_4$ / LOX | Staged, full-flow | ~345 | >444,822 | | | | |

## Retired and canceled rocket engines

| Engine | Origin | Designer | Vehicle | Status | Use | Propellant | Power cycle | Specific impulse (s) | Thrust (N) | Chamber pressure (bar) | Mass (kg) | Thrust:​weight ratio | Oxidiser:​fuel ratio |
| Aeon 1 | USA | Relativity Space | Terran 1 | Retired | 1st | CH$_4$ / LOX | Gas generator | 310 | 86,740 (SL) | | | | |
| Aeon 1 Vacuum | USA | Relativity Space | Terran 1 | Retired | 2nd | CH$_4$ / LOX | Gas generator | 360 | 100,085 (SL) | | | | |
| Aestus | Europe | Airbus Defence and Space | Ariane 5 G, G+, ES | Retired | Upper | N$_2$O$_4$ / MMH | Pressure-fed | 324 | 30,000 | 11 | 111 | 27.6 | 1.9 |
| Aestus II | Europe | Airbus Defence and Space | Ariane 5 | Retired | Upper | N$_2$O$_4$ / MMH | Gas generator | 340 | 55,400 | 60 | 138 | 41.0 | 1.9 |
| Aether | USA | Astra Space | Rocket 3.3 | Retired | 2nd | RP-1/LOX | Pressure-fed | | 3,300 | | | | |
| AJ-60A | USA | Aerojet | Atlas V | Retired | Booster | HTPB | Solid fuel | 275 | 1,270,000 | | | | |
| AJ-260-2 | USA | Aerojet | S-I stage replacement (proposed) | Tested, Cancelled | 1st | PBAN | Solid fuel | 263 | 26,183,755 | | 831,345 with fuel | | |
| AR1 | USA | Aerojet Rocketdyne | | Cancelled | 1st | RP-1 / LOX | Staged, oxidizer-rich | | 2,200,000 (SL) | | | | 2.72 |
| Delphin | USA | Astra Space | Rocket 3.3 | Retired | 1st | RP-1/LOX | Electric pump | | 29,000 | 31 | | | |
| F-1 | USA | Rocketdyne | Saturn V | Retired | 1st | RP-1 / LOX | Gas generator | 304 263 (SL) | 7,770,000 6,770,000 (SL) | 70 | 8,391 | 82.27 | 2.27 |
| F-1A | USA | Rocketdyne | Saturn MLV | Cancelled | 1st | RP-1 / LOX | Gas generator | 303 270 (SL) | 8,989,000 8,007,000 (SL) | 80 | 9,015 | 90.6 | 2.27 |
| Gamma 2 | United Kingdom | Bristol Siddeley | Black Arrow | Retired | 2nd | RP-1 / H$_2$O$_2$ | Staged, decomposition and combustion | 265 | 68,200 | | 173 | 40.22 | 8 |
| Gamma 8 | United Kingdom | Bristol Siddeley | Black Arrow | Retired | 1st | RP-1 / H$_2$O$_2$ | Staged, decomposition and combustion | 265 | 234,800 | 47.40 | 342 | 70.01 | 8 |
| HM-7A | Europe | Snecma | Ariane 1 | Retired | 3rd | LH$_2$ / LOX | Gas generator | 443 308 (SL) | 61,700 | 30 | 149 | 42.2 | 5 |
| HM-7B | Europe | Snecma | Ariane 2, 3, 4, 5 ECA | Retired | Upper | LH$_2$ / LOX | Gas generator | 446 310 (SL) | 64,800 43,600 (SL) | 37 | 165 | 43.25 | 5 |
| J-2 | USA | Rocketdyne | Saturn V, IB | Retired | 2nd, 3rd | LH$_2$ / LOX | Gas generator | 421 200 (SL) | 1,033,100 486,200 (SL) | 52.6 | 1,438 | 73.18 | 5.5 |
| J-2X | USA | Pratt & Whitney Rocketdyne | Ares I, Ares V, SLS (proposed) | Tested, Cancelled | Upper | LH$_2$ / LOX | Gas generator | 448 | 1,310,000 | 95 | 2,470 | 58.41 | 5.5–4.5 |
| Kestrel | USA | SpaceX | Falcon 1 | Retired | Upper | RP-1 / LOX | Pressure fed | 317 | 31,000 | 9.3 | 52 | 65 | |
| LE-5 | Japan | Mitsubishi, NASDA | H-I | Retired | Upper | LH$_2$ / LOX | Gas generator | 450 | 103,000 | 36.0 | 245 | 42.87 | 5.5 |
| LE-5A | Japan | Mitsubishi, NASDA | H-II | Retired | Upper | LH$_2$ / LOX | Expander, open | 452 | 121,500 | 40.0 | 242 | 51.19 | 5 |
| LE-7 | Japan | Mitsubishi, NASDA | H-II | Retired | 1st | LH$_2$ / LOX | Staged combustion | 446 | 1,078,000 843,500 (SL) | 127 | 1,714 | 64.13 | 5.9 |
| M-1 | USA | Aerojet | | Cancelled | 1st, 2nd? | LH$_2$ / LOX | Gas generator | 428 (SL) | 6,670,000 | | 9,068 | 60 | |
| Merlin 1C | USA | SpaceX | Falcon 9 v1.0 | Retired | 1st | RP-1 / LOX | Gas generator | 311 282 (SL) | 723,000 | 97 | 470 | 158 | 2.34 |
| Merlin Vacuum 1C | USA | SpaceX | Falcon 9 v1.0 | Retired | 2nd | RP-1 / LOX | Gas generator | 336 | 413,644 | | | 92 | |
| NewtonThree | USA | Virgin Orbit | LauncherOne | Retired | Booster | RP-1 / LOX | Gas generator | | 266,893 | 70 | | | |
| NewtonFour | USA | Virgin Orbit | LauncherOne | Retired | 2nd | RP-1 / LOX | Gas generator | | 22,241 | | | | |
| P80 | Europe | Avio | Vega | Retired | 1st | HTPB | Solid fuel | 280 | 3,015,000 | 88 | 96,000 with fuel | | |
| P230 | Europe | Avio | Ariane 5 | Retired | Booster | HTPB | Solid fuel | 286 259 (SL) | 6,996,000 5,860,000 (SL) | 69 | 269,000 with fuel | | |
| RD-0120 11Д122 | Soviet Union | KBKhA | Energia | Retired | 1st | LH$_2$ / LOX | Staged, fuel-rich | 455 | 1,962,000 1,526,000 (SL) | 219 | 3,450 | 57.80 | |
| RD-8, 11D513 | Soviet Union | Pivdenne/​Pivdenmash | Zenit | Retired | 2nd vernier | RP-1 / LOX | Staged, oxidizer-rich | 342 | 78,450 | 77.47 | 356 | | 2.4 |
| RD-56 (KVD-1) 11Д56У | Russia | KBKhM | GSLV Mk I | Retired | Upper | LH$_2$ / LOX | Staged, fuel-rich | 462 | 69,626 | 55.9 | 282 | 25.17 | |
| RD-117 11Д511 | Soviet Union | NPO Energomash | Soyuz-U | Retired | 1st | RP-1 / LOX | Gas generator | 316 253 (SL) | 978,000 778,648 (SL) | 54.2 | 1,100 | 72.18 | |
| RD-118 11Д512 | Soviet Union | NPO Energomash | Soyuz-U | Retired | 2nd | RP-1 / LOX | Gas generator | 314 257 (SL) | 1,000,278 818,855 (SL) | 59.7 | 1,100 | 75.91 | |
| RD-17011Д521 | Soviet Union | NPO Energomash | Energia | Retired | 1st | RP-1 / LOX | Staged, oxidizer-rich | 337.2 309.5 (SL) | 7,904,160 7,256,921 (SL) | 250 | 9,300 | 79.57 | |
| RD-181 | Russia | NPO Energomash | Antares 200 | Retired | 1st | RP-1 / LOX | Staged, oxidizer-rich | 339.2 311.9 (SL) | 2,085,000 1,922,000 (SL) | 262.6 | 2,200 | 89 | |
| RD-193 | Russia | NPO Energomash | Soyuz-2-1v | Cancelled | 1st | RP-1 / LOX | Staged, oxidizer-rich | 337.5 311.2 (SL) | 2,084,894 1,922,103 (SL) | | 1,900 | 103.15 | |
| RD-264 11Д119 | Soviet Union | NPO Energomash | Dnepr | Retired | 1st | N$_2$O$_4$ / UDMH | Staged, oxidizer-rich | 318 293 (SL) | 4,521,000 | 206 | 3,600 | 128.15 | |
| RD-270 8Д420 | Soviet Union | NPO Energomash | UR-700 (proposed), UR-900 (proposed) | Tested, Cancelled | 1st | N$_2$O$_4$ / UDMH | Staged, full-flow | 322 301 (SL) | 6,710,000 6,270,000 (SL) | 261 | 3,370 | 189.91 | |
| RD-275 14Д14 | Russia | NPO Energomash | Proton-M | Retired | 1st | N$_2$O$_4$ / UDMH | Staged, oxidizer-rich | 316 287 (SL) | 1,831,882 1,671,053 (SL) | 160.0 | 1,070 | 171.2 | |
| RD-843 | Ukraine | Pivdenne/​Pivdenmash | Vega | Retired | upper | N$_2$O$_4$ / UDMH | Pressure-fed | 315.5 | 2,452 | 20.4 | 15.93 | | 2.0 |
| RD-854 8D612 | Soviet Union | Pivdenne/​Pivdenmash | R-36ORB | Retired | 3rd | N$_2$O$_4$ / UDMH | Gas generator | | | | | | |
| RD-855 8D68M | Soviet Union | Pivdenne/​Pivdenmash | Tsyklon-2, -3, R-36 | Retired | 1st vernier | N$_2$O$_4$ / UDMH | Gas generator | | 328,000 | 65.70 | 320 | | 1.97 |
| RD-856 8D69M | Soviet Union | Pivdenne/​Pivdenmash | Tsyklon-2, -3 (-4), R-36 | Retired | 2nd vernier | N$_2$O$_4$ / UDMH | Gas generator | | 54,230 | 71.60 | 112.5 | | 1.98 |
| RD-861 11D25 | Soviet Union | Pivdenne/​Pivdenmash | Tsyklon-2, -3 | Retired | 3rd | N$_2$O$_4$ / UDMH | Gas generator | | 78,710 | 88.8 | 123 | | 2.1 |
| RD-864 15D177 | Soviet Union | Pivdenne/​Pivdenmash | R-36 (missile), Dnipro | Retired | 3rd | N$_2$O$_4$ / UDMH | Gas generator | 298–309 | 8,450–20,200 | 17–41 | 199 | | 1.8 |
| RD-869 15D300 | Soviet Union | Pivdenne/​Pivdenmash | R-36M | Retired | 3rd | N$_2$O$_4$ / UDMH | Gas generator | 302.3–313 | 8,580–20,470 | 17–41 | 196 | | 1.8 |
| RS-27A | USA | Rocketdyne | Delta | Retired | 1st | RP-1 / LOX | Gas generator | 302 255 (SL) | 1,054,200 | 49 | 1,091 | 102.5 | 2.245 |
| RS-68A | USA | Rocketdyne | Delta IV, IV Heavy | Retired | 1st | LH$_2$ / LOX | Gas generator | 411 362 (SL) | 3,558,577 3,135,996 (SL) | 109 | 6,686 | 54.31 | 5.97 |
| Space Shuttle Solid Rocket Booster | USA | Thiokol | Space Shuttle, Ares I | Retired | Booster | PBAN / APCP | Solid fuel | 268 | 14,000,000 12,500,000 (SL) | | 590,000 with fuel | | |
| SRB-A | Japan | IHI Aerospace, JAXA | H-IIA | Retired | Booster | HTPB | Solid fuel | 280 | 2,250,000 | | 76,400 with fuel | | |
| UA1207 | USA | United Technologies | Titan IV | Retired | Booster | PBAN | Solid fuel | 272 245 (SL) | 7,116,000 6,410,400 (SL) | | 319,330 with fuel | | |
| Viking 2 | Europe | Snecma | Ariane 1 | Retired | 1st | N$_2$O$_4$ / UDMH | Gas generator | | 690,000 611,200 (SL) | | 776 | 90.67 | |
| Viking 2B | Europe | Snecma | Ariane 2, 3 | Retired | 1st | N$_2$O$_4$ / UH 25 | Gas generator | | 643,000 (SL) | | 776 | 84.5 | |
| Viking 4 | Europe | Snecma | Ariane 1 | Retired | 2nd | N$_2$O$_4$ / UDMH | Gas generator | | 713,000 | | 826 | 88 | |
| Viking 4B | Europe | Snecma | Ariane 2, 3, 4 | Retired | 2nd | N$_2$O$_4$ / UH 25 | Gas generator | | 800,000 | | 826 | 98.76 | |
| Viking 5C | Europe | Snecma | Ariane 4 | Retired | 1st | N$_2$O$_4$ / UH 25 | Gas generator | | 758,000 678,000 (SL) | | 826 | 93.57 | |
| Viking 6 | Europe | Snecma | Ariane 4 | Retired | Booster | N$_2$O$_4$ / UH 25 | Gas generator | | 750,000 | | 826 | 92.59 | |
| Vulcain HM-60 | Europe | Snecma | Ariane 5 | Retired | 1st | LH$_2$ / LOX | Gas generator | 439 326 (SL) | 1,113,000 773,200 (SL) | 109 | 1,300 | 84.38 | |
| Vulcain 2 | Europe | Snecma | Ariane 5 | Retired | 1st | LH$_2$ / LOX | Gas generator | 429 318 (SL) | 1,359,000 939,500 (SL) | 117.3 | 1,800 | 77.04 | |
| Waxwing | United Kingdom | Bristol Aerojet | Black Arrow | Retired | Upper | | Solid fuel | 278 245 (SL) | 29,400 25,900 (SL) | | 87 | 34.48 | |
| Zefiro 23 | Europe | Avio | Vega | Retired | 2nd | HTPB | Solid fuel | 287.5 | 1,122,000 | 94 | 25,935 with fuel | | |