Country of origin | USSR |
---|---|
First flight | 1973-04-09[1] |
Designer | OKB-154[1] |
Associated LV | UR-100N, Rokot and Strela[1] |
Status | Out of Production |
Liquid-fuel engine | |
Propellant | N2O4[1] / UDMH[1] |
Cycle | Oxidizer Rich Staged Combustion[1] |
Configuration | |
Chamber | 1[2] |
Performance | |
Thrust | 520 kilonewtons (120,000 lbf)[2] |
Chamber pressure | 20.5 megapascals (2,970 psi)[2] |
Specific impulse, vacuum | 310 s (3.0 km/s)[2] |
Specific impulse, sea-level | 285 s (2.79 km/s)[2] |
Burn time | 121 seconds[2] |
Used in | |
UR-100N core stage[2] |
The RD-0233 (GRAU Index 15D95) and RD-0234 (GRAU Index 15D96) are liquid rocket engines, burning N2O4 and UDMH in the oxidizer rich staged combustion cycle.[3][1][2] The only difference between the RD-0233 and the RD-0234 is that the latter has a heat exchanger to heat the pressuring gasses for the tanks.[4] Three RD-0233 and one RD-0234 are used on the first stage of the UR-100UTTKh ICBM.[5] While the engine is out of production, the ICBM as well as Rokot and Strela remain operational as of 2015.[5]
See also
[edit]- UR-100N - ICBM for which this engine was originally developed for.
- Rokot - launch vehicle that is a repurposed UR-100N.
- Strela - launch vehicle that is a repurposed UR-100N.
- Rocket engine using liquid fuel
References
[edit]- ^ a b c d e f g "RD-0233, RD-0234, RD-0235, RD-0236, RD-0237. Intercontinental ballistic missiles RS-18". KBKhA. Archived from the original on 5 May 2014.
- ^ a b c d e f g h "RD-0233". Encyclopedia Astronautica. Archived from the original on 2015-08-24. Retrieved 2015-06-19.
- ^ "Rockot Launch Vehicle". Khrunichev State Research and Production Space Center. Archived from the original on 27 May 2011.
- ^ "RD-0234". Encyclopedia Astronautica. Archived from the original on 2015-08-24. Retrieved 2015-06-19.
- ^ a b Zak, Anatoly. "UR-100N Family". RussianSpaceWeb.com. Retrieved 2015-06-19.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction