RD-0243

RD-0243

RD-0244 (РД-0244)
Country of origin USSR
First flight 1981-12-27[1]
Designer OKB-154[1]
Associated L/V RSM-54, Shtil'[1]
Status Retired
Liquid-fuel engine
Propellant N2O4[1] / UDMH[1]
Mixture ratio 2.6[2]
Cycle Oxidizer Rich Staged combustion[1]
Configuration
Chamber 1[2]
Performance
Thrust 682 kilonewtons (153,000 lbf)[2]
Chamber pressure 27.5 megapascals (3,990 psi)[2]
Isp (vac.) 310 s (3.0 km/s)[2]
Isp (SL) 280 s (2.7 km/s)[2]
Burn time 74 seconds[2]
Used in
RD-0243 Propulsion Module[3]
RD-0245 (РД-0245)
Country of origin USSR
First flight 1981-12-27[1]
Designer OKB-154[1]
Associated L/V RSM-54, Shtil'[1]
Status Retired
Liquid-fuel engine
Propellant N2O4[1] / UDMH[1]
Mixture ratio 2.6[4]
Cycle Gas Generator[1]
Configuration
Chamber 4[4]
Nozzle ratio 14
Performance
Thrust 211 kilonewtons (47,000 lbf)[4]
Chamber pressure 14.7 megapascals (2,130 psi)[4]
Isp (vac.) 300 s (2.9 km/s)[4]
Isp (SL) 280 s (2.7 km/s)[4]
Burn time 79 seconds[4]
Used in
RD-0243 Propulsion Module[3]

The RD-0243 is a propulsion module composed of an RD-0244 main engine and a RD-0245 vernier engine. Both are liquid rocket engine, burning N2O4 and UDMH. The RD-0244 main engine operates in the oxidizer rich staged combustion cycle, while the vernier RD-0245 uses the simpler gas generator cycle. Since volume is at a premium on submarine launches, this module is submerged on the propellant tank.[3] Its development period was from 1977 to 1985, having had its first launch on December 27, 1981. Originally developed for the RSM-54, it was used later for the Shtil'.[1]

See also

References

  1. ^ a b c d e f g h i j k l m "RD-0243, RD-0244, RD-0245. Sea-based missile RSM-54". KBKhA. Retrieved 2015-06-18. 
  2. ^ a b c d e f g "RD-0244". Encyclopedia Astronautica. Retrieved 2015-06-18. 
  3. ^ a b c "RD-0243". Encyclopedia Astronautica. Retrieved 2015-06-18. 
  4. ^ a b c d e f g "RD-0245". Encyclopedia Astronautica. Retrieved 2015-06-18. 

External links

  • KbKhA official information on the engine.
  • Encyclopedia Astronautica information on the propulsion module.