1 Design 2 Development 3 Variants
3.1 RD-151 3.2 RD-181 3.3 RD-193
4 See also 5 References 6 External links
Burn ignition is provided by a chemical method, by feeding into the
combustion chamber special starting fuel which is self-igniting on
contact with liquid oxygen. The engine is capable of throttling down
to 30% of nominal thrust; the design also allows for a short-duration
enhanced thrust (up to 105% of nominal level) in emergency situations.
A Cardan suspension provides for yaw and pitch controls by gimballed
thrust deflection up to 8 degrees.
A modern design, the engine incorporates sensors monitoring burn
conditions. The measurements are used for telemetry and an emergency
The engine fulfills two additional functions, heating helium gas for
pressurization of propellant tanks and generating hydraulic power for
hydraulic actuators to deflect the nozzle and aerodynamic rudders.
On September 5, 2008, the creator of the engine, NPO Energomash,
reported that the engine has completed the full cycle of development
and burn tests and is ready for manufacturing and delivery. The
primary launch vehicle utilizing this engine is the Angara rocket,
currently being developed.
As of 2010, the engine had passed all development phases and its nine
prototypes had accumulated over 23,000 seconds in 105 firing tests,
with one of them reaching the maximum running time of 3,635 seconds in
12 tests. Currently, interdepartmental tests are under way and
manufacturing of the engines for flight development tests has started.
The flight tests will begin with a launch of the Angara-1.2
light-class rocket, and then of the Angara-A5 heavy launcher. Despite
problems with funding, work on the
Comparison of orbital rocket engines
^ "Archived copy". Archived from the original on 2011-11-11. Retrieved
Wikimedia Commons has media related to RD-191.
"RD-191". Energomash. Archived from the original on 2014-07-05.
v t e
Rocket engines and solid motors for orbital launch vehicles
Comparison of orbital rocket engines
Cryogenic (LH2 / LOX)
YF-73 YF-75 YF-75D YF-77
HM7B Vinci Vulcain
LE-5 LE-7 LE-9
BE-3U J-2 RL10 RS-25 (SSME) RS-68
Cryogenic (CH4 / LOX)
RD-0164, 0169 RD-162, 167 169 RD-182 183 184 185 RD-0141 RD-0143
RD-8 RD-801 RD-810
F-1 H-1 Kestrel LR-79 LR-89 LR-105 Merlin 1 RS-27 RS-27A RS-56 S-3D XLR50
RD-109 RD-112, 113 114 115 RD-119
Hypergolic (UDMH, UH 25, Aerozine or MMH reacting with NTO N2O4 or MON)
YF-1, 2, 3 YF-20, 21, 22, 24, 25 YF-23 YF-40 YF-50D
Aestus Astris Vexin Viking
Paektusan LRE along other LREs
17D61 RD-0202 to 0206, 0208 to 0213 RD-0207, 0214 RD-0216, 0217, 0235 RD-0233, 0234 RD-0236 RD-0237 RD-0243, 0244, 0245 RD-0255, 0256, 0257 RD-250, 251, 252, 261, 262 RD-253, 275 RD-263, 268, 273 RD-270 RD-854, 861 RD-855 RD-856 RD-864, 869 S5.92 S5.98M
AJ10 LR-87 LR-91 TR-201
Hypergolic (other oxidizers)
RD-112, 113 RD-119 RD-211 to 214 RD-215, 216 RD-301
FG-02 FG-36 FG-46 FG-47 SpaB-65 SpaB-140C
Mage 1 P-4 P-6 PAP P80 P120 P230 Topaze Waxwing Zefiro 9 Zefiro 23
S7 S9 S12 S139 S200
KM-V1 KM-V2b M-14 M-24 M-34 M-34c SRB-A
AJ-60A Algol Castor 30 GEM Orbus-6 Orbus-21 Orion Space Shuttle SRB Star 27 Star 37 Star 48 UA120 USRM X-248 X-254
Engines under development are in italics.
v t e
RD-171 RD-180 RD-191 RD-151
Bipropellant LOX RP-1 Staged combustion cycle
Rockets under development
Antares (200-series) (RD-181)
v t e
Russian and former Soviet military designation sequences for radar, missile and rocket systems
A-100 P-3 P-8 P-10 P-12 P-14 P-15 P-18 P-19 P-20 P-30 P-35 P-37 P-40 P-70 P-80 P-100 Kabina 66 Kasta 2E RSN-225 Azov SNR-75 1S91 30N6 36D6 64N6 76N6 96L6E 9S15 9S19 9S32 Duga Dnestr Dnepr Daryal Dunay Volga Don-2N Voronezh Container
N001 N002 N005 N006 N007 N008 N010 N011 N012 N014 N019 N025 N035 N036
BZhRK GR-1 R-7 R-9 R-16 R-26 R-36 R-36M R-46 RS-24 RS-26 RT-2 RT-2PM RT-2PM2 RT-20 RT-21 RT-23 RS-28 UR-100 UR-100MR UR-100N UR-200
R-5 R-12 RT-15 RT-25
2K1 2K6 9K52 9K720 R-1 R-2 R-11 R-11A R-17 OTR-21 OTR-23 TR-1
R-13 R-15 R-21 R-27 R-29 R-39 RSM-45 RSM-56
P-1 P-5 P-15 P-70 P-120 P-270 P-500 P-700 P-750 P-800 P-900 P-900A P-1000 RKV-500A RPK-2 RPK-6 RPK-7 URPK-3 URPK-4 URPK-5
2K11 Krug/SA-4 "Ganef"
2K12 Kub/SA-6 "Gainful"
2K22 Tunguska/SA-19 "Grison"/SA-N-11 (tracked gun-missile system
KSR-2 KSR-5 KS-1 K-10S KH-11 Kh-15 Kh-20 Kh-22 Kh-23 Kh-25 Kh-26 Kh-28 Kh-29 Kh-31 Kh-35 Kh-38 Kh-41 Kh-55 Kh-58 Kh-59 Kh-80 Kh-90 9M114V
K-5 R-3 R-4 R-8 R-23 R-27 R-33 R-37 R-38 R-40 R-60 R-73 R-77 R-172
3M6 9K111 9K112 9K114 9K115 9K115-2 9K121 9M14 9M15 9M17 9M113 9M117 9M119 9M120 9M123 9M133 Kornet-D Hermes
RP-1 RP-5 RP-6 RP-9 RP-15 RP-21 RS-82 RS-132
BM-14 BM-21 BM-24 BM-25 BM-27 BM-30 TOS-1
RD-8 RD-9 R-11 R-13 R-15 R-25 R-29 RD-33 RD-45 RD-58 RD-107 RD-117 RD-0120 RD-0124 RD-0146 RD-170 RD