RS-27
| Country of origin | United States |
|---|---|
| Date | 1974 |
| Designer | Rocketdyne |
| Manufacturer | Rocketdyne |
| Application | Booster |
| Predecessor | H-1 |
| Successor | RS-27A, RS-56 |
| Status | Retired |
| Liquid-fuel engine | |
| Propellant | LOX / RP-1 |
| Cycle | Gas Generator |
| Configuration | |
| Chamber | 1 |
| Performance | |
| Thrust, vacuum | 1,023 kN (230,000 lbf) |
| Thrust, sea-level | 971 kN (218,000 lbf) |
| Chamber pressure | 4.9 MPa (49 bar) |
| Specific impulse, vacuum | 295 seconds (2.89 km/s) |
| Specific impulse, sea-level | 264 seconds (2.59 km/s) |
| Burn time | 274 Sec |
| Dimensions | |
| Length | 3.63 m (11.9 ft) |
| Diameter | 1.07 m (3.51 ft) |
| Dry mass | 1,027 kg (2,264 lb) |
| Used in | |
| Delta 2000, 3000, 5000, 6000, first stage[1] | |
The RS-27 is a liquid-propellant rocket engine developed[when?] by Rocketdyne. It was used to power the first stage of the Delta 2000, 3000, 5000, and the first model of the Delta II, the Delta 6000.
The RS-27 was a modified Rocketdyne H-1 from surplus engines built to power the first stage of the Saturn I and Saturn IB and replaced the MB-3 engine that had been used on previous versions of the Delta launcher.[2][3] In addition to its main engine, the RS-27 included two vernier engines to provide vehicle roll control during flight.[citation needed] RS-27 was later developed into the RS-27A and RS-56.[4][5]
References
- ^ "Delta". Astronautix. Archived from the original on May 22, 2013. Retrieved March 5, 2015.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ "RS-27". Astronautix. Archived from the original on August 13, 2011. Retrieved March 5, 2015.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ "Extended Long Tank Delta". SpaceLaunchReport.com. Retrieved March 5, 2015.
- ^ "Atlas IIA(S) Data Sheet". Space Launch Report. Retrieved 9 January 2016.
- ^ "RS-27A". Astronautix. Archived from the original on 5 August 2014. Retrieved 10 January 2016.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help)
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