RD-0243

RD-0244 (РД-0244)
Country of originUSSR
First flight1981-12-27[1]
DesignerOKB-154[1]
Associated LVRSM-54, Shtil'[1]
StatusRetired
Liquid-fuel engine
PropellantN2O4[1] / UDMH[1]
Mixture ratio2.6[2]
CycleOxidizer Rich Staged combustion[1]
Configuration
Chamber1[2]
Performance
Thrust682 kilonewtons (153,000 lbf)[2]
Chamber pressure27.5 megapascals (3,990 psi)[2]
Specific impulse, vacuum310 s (3.0 km/s)[2]
Specific impulse, sea-level280 s (2.7 km/s)[2]
Burn time74 seconds[2]
Used in
RD-0243 Propulsion Module[3]
RD-0245 (РД-0245)
Country of originUSSR
First flight1981-12-27[1]
DesignerOKB-154[1]
Associated LVRSM-54, Shtil'[1]
StatusRetired
Liquid-fuel engine
PropellantN2O4[1] / UDMH[1]
Mixture ratio2.6[4]
CycleGas Generator[1]
Configuration
Chamber4[4]
Nozzle ratio14
Performance
Thrust211 kilonewtons (47,000 lbf)[4]
Chamber pressure14.7 megapascals (2,130 psi)[4]
Specific impulse, vacuum300 s (2.9 km/s)[4]
Specific impulse, sea-level280 s (2.7 km/s)[4]
Burn time79 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]

  1. ^ a b c d e f g h i j k l m Cite error: The named reference kbkha-rd0243 was invoked but never defined (see the help page).
  2. ^ a b c d e f g Cite error: The named reference ea-rd0244 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference ea-rd0243 was invoked but never defined (see the help page).
  4. ^ a b c d e f g Cite error: The named reference ea-rd0245 was invoked but never defined (see the help page).