RD-215
Appearance
Country of origin | USSR |
---|---|
Date | 1958-1960 |
Designer | OKB-456, V.Glushko |
Associated LV | R-14, Kosmos-3 and Kosmos-3M |
Status | Retired |
Liquid-fuel engine | |
Propellant | AK-27I / UDMH |
Mixture ratio | 2.5 |
Configuration | |
Chamber | 2 |
Nozzle ratio | 18.8 |
Performance | |
Thrust, vacuum | 887 kN (199,000 lbf) |
Thrust, sea-level | 740 kN (170,000 lbf) |
Chamber pressure | 7.355 MPa (1,066.8 psi) |
Specific impulse, vacuum | 289 s (2.83 km/s) |
Specific impulse, sea-level | 246 s (2.41 km/s) |
Dimensions | |
Length | 2,205 mm (86.8 in) |
Diameter | 2,260 mm (89 in) |
Dry mass | 575 kg (1,268 lb) |
Used in | |
R-14, Kosmos-3 and Kosmos-3M first stage | |
References | |
References | [1][2][3][4][5][6] |
The RD-215 (GRAU Index 8D513) was a dual nozzle liquid rocket engine, burning AK-27 (a mixture of 73% nitric acid and 27% N2O4 + iodine passivant) and UDMH. It was used in a module of two engines (four nozzles) known as the RD-216 (GRAU Index 8D514).[2] The RD-215 was developed by OKB-456 for Yangel's Yuzhmash R-14 (8K65) ballistic missile. Its variations were also used on the Kosmos-1, Kosmos-3 and Kosmos-3M launch vehicles.[1]
Versions
[edit]The family incorporate many versions:[1][7]
- RD-215: GRAU Index 8D513. Original design for the R-14 (8K65). Used also on the Kosmos-1 and Kosmos-3[2][1]
- RD-215U: GRAU Index 8D513U. Improved engine for the R-14U (8K65U).[1]
- RD-215M: GRAU Index 8D513M. Improved version used on the Kosmos-3M.[1]
- RD-218: GRAU Index 8D515. Modified design for the R-16 (8K64) first stage.
- RD-219: GRAU Index 8D713. Modified design for the R-16 (8K64) second stage.
Modules
[edit]These engines were bundled into modules of pairs of engines. The serial production modules were:[1][3]
- RD-216: GRAU Index 8D514. Bundle of two RD-215, used on the R-14 (8K65), Kosmos-1 and Kosmos-3 first stage.[2][1]
- RD-216U: GRAU Index 8D514U. Bundle of two RD-215U, used on the R-14U (8K65U) first stage.[1]
- RD-216M: GRAU Index 8D514M. Bundle of two RD-215M, used on the Kosmos-3M first stage.[1]
- RD-218: GRAU Index 8D712. Bundle of three RD-217, powers the R-16 (8K64) first stage.
Engine | RD-215 | RD-215U | RD-215M |
---|---|---|---|
GRAU | 8D514 | 8D514U | 8D514M |
Development | 1958-1960 | 1960-1961 | 1966-1968 |
Propellant | AK-27I (73% nitric acid, 27% N2O4, and iodine passivant) / UDMH[2] | ||
Combustion chamber pressure | 7.355 MPa (1,066.8 psi) | ||
Thrust, vacuum | 887 kN (199,000 lbf) | 887 kN (199,000 lbf) | 890 kN (200,000 lbf) |
Thrust, sea level | 740 kN (170,000 lbf) | 740 kN (170,000 lbf) | 742.8 kN (167,000 lbf) |
Isp, vacuum | 289 s (2.83 km/s) | 289 s (2.83 km/s) | 291.3 s (2.857 km/s) |
Isp, sea level | 246 s (2.41 km/s) | 246 s (2.41 km/s) | 248 s (2.43 km/s) |
Burn time | 146s | N/A | N/A |
Length | 2,205 mm (86.8 in) | 2,205 mm (86.8 in) | 2,205 mm (86.8 in) |
Diameter | 2,260 mm (89 in) | 2,260 mm (89 in) | 2,260 mm (89 in) |
Dry weight | 575 kg (1,268 lb) | 575 kg (1,268 lb) | 570 kg (1,260 lb) |
Use | R-14 (8K65), Kosmos-1 and Kosmos-3 | R-14U (8K65U) | Kosmos-3M |
See also
[edit]- R-14 - Ballistic missile for which this engine was originally developed for.
- Kosmos-3 - launch vehicle that is uses an R-14 as first stage.
- Kosmos-3M - launch vehicle that is uses an R-14 as first stage.
- Rocket engine using liquid fuel
References
[edit]- ^ a b c d e f g h i j k "NPO Energomash list of engines". NPO Energomash. Archived from the original on 7 November 2014.
- ^ a b c d e "RD-216". Encyclopedia Astronautica. Archived from the original on June 26, 2002. Retrieved 2015-06-26.
- ^ a b "R-14". Encyclopedia Astronautica. Archived from the original on March 9, 2003. Retrieved 2015-06-26.
- ^ Zak, Anatoly. "Cosmos-1, 3, 3M and 3MU". RussianSpaceWeb.com. Retrieved 2016-07-05.
- ^ Krebs, Gunter Dirk (2016-04-22). "Kosmos-1/-3/-3M". Gunter's Space Page. Retrieved 2016-07-05.
- ^ Article title