RD-193: Difference between revisions
m WP:CHECKWIKI error fixes using AWB (11904) |
PSR B1937+21 (talk | contribs) remove manufacturer, as RD-193 is still in development phase |
||
| Line 6: | Line 6: | ||
|country_of_origin={{RUS}} |
|country_of_origin={{RUS}} |
||
|designer=[[NPO Energomash]] |
|designer=[[NPO Energomash]] |
||
|manufacturer= |
|||
|manufacturer=[[NPO Energomash]] / [[Soyuz-2 (rocket)|Soyuz 2.1v]] (in transition) |
|||
|date=2001 |
|date=2001 |
||
|purpose= Main engine |
|purpose= Main engine |
||
Revision as of 07:31, 11 March 2016
| Country of origin |  Russia |
|---|---|
| Date | 2001 |
| Designer | NPO Energomash |
| Application | Main engine |
| Predecessor | RD-191 |
| Liquid-fuel engine | |
| Propellant | LOX / RP-1 |
| Cycle | Oxidizer-rich Staged combustion |
| Configuration | |
| Chamber | 1 |
| Performance | |
| Thrust, vacuum | 212.6 tf (469,000 lbf) |
| Thrust, sea-level | 196 tf (430,000 lbf) |
| Thrust-to-weight ratio | 103 |
| Specific impulse, vacuum | 337.5 s (3.310 km/s) |
| Specific impulse, sea-level | 311.2 s (3.052 km/s) |
| Dimensions | |
| Length | 3020 mm |
| Diameter | 2100 mm |
| Dry mass | 1900 kg [1] |
The RD-193 is a high performance single-combustion chamber rocket engine, developed in Russia. It is derived from the RD-170 originally used in the Energia launcher.
The RD-193 is fueled by a kerosene / LOX mixture and uses an oxygen-rich staged combustion cycle. RD-193 was proposed as a replacement for the NK-33, which is being used in the Soyuz-2-1v vehicle.[2]
In late 2014, the Russian news agency TASS reported that Orbital Sciences has preliminarily selected the RD-193 as the new engine to power the rocket that Orbital intends to use in its contract proposal to NASA for the second phase of the commercial resupply services to the ISS. The current engine used in the initial version of the Antares launch vehicle first stage is an Aerojet AJ-26, which is a refurbished Russian NK-33.
Design
The engine is a simplified version of the RD-191. Characterized by the absence of swing assembly chamber and related to other structural elements, thus reducing the size and weight (300 kg) and lower its cost.[3]
RD-181
The RD-181 is based on the RD-191 and is adapted for integration on the Antares rocket. While the RD-193 was designed as a close replacement for the NK-33, on December 17, 2014, Orbital Sciences confirmed that it had contracted directly with NPO Energomash for up to 60 RD-181 engines (each launch requires two engines. While Russian press had stated that the contract was valued at 1 Billion USD with options, on January 26, 2015, Orbital stated that even when exercising all the options the contract was less than that amount, and that the initial contractual commitment was significantly less than that. Orbital ATK on February 19, 2015, said that its revamped Antares rocket featuring a new main engine would make its first launch in March 2016. On May 29, 2015, Orbital stated that the new engines had successfully conducted seven certification firings and all went as expected. It also stated that the first two flight models were doing its final tests and would be delivered to Orbital in early July.[4][5][6][7][8][9][10][11]
See also
References
- ^ "В России создан новый ракетный двигатель". ВПК. 2013-04-08. Archived from the original on 2013-06-06.
- ^ Zak, Anatoly. "RD-193". russianspaceweb.com. Retrieved 2015-06-04.
- ^ Огнев В. (2013). "Универсальный ракетный двигатель РД-193. Мнение инженера-разработчика". Журнал «Новости космонавтики».
- ^ Zak, Anatoly. "RD-181". russianspaceweb.com. Retrieved 2015-06-04.
- ^ Selding, Peter B. "Orbital Sciences Orders RD-181 Engines for Antares Rocket". SpaceNews. Retrieved 2015-06-04.
- ^ Selding, Peter B. "Orbital Sciences: Russian Press Overstate RD-181 Contract Value". SpaceNews. Retrieved 2015-06-04.
- ^ Selding, Peter B. "Re-engined Antares To Carry Space Station Cargo in 2016 Debut". SpaceNews. Retrieved 2015-06-04.
- ^ Selding, Peter B. "Orbital ATK Sees Commercial Satellites as Top Growth Area". SpaceNews. Retrieved 2015-06-04.
- ^ Афанасьев И. (2012). ""Энергомаш" в новом тысячелетии" (PDF). News of Cosmonautics. 8 (22).
- ^ "СМИ: Orbital Sciences купит у "Энергомаш" двигатели на $1 млрд". RIA Novosti. Retrieved 2014-12-19.
- ^ "Orbital: сумма контракта на поставку двигателей из РФ ниже $1 млрд". РИА Новости. 2014-12-17. Archived from the original on 2014-12-17. Retrieved 2014-12-17.
External links
| Liquid fuel |
|  | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solid fuel |
| |||||||||||||||||
| ||||||||||||||||||
| |||||||||||||||
