The RS-27 was a liquid-propellant rocket engine developed in 1974 by Rocketdyne to replace the aging MB-3 in the Delta. Incorporating components of the venerable MB-3 and the H-1 designs, the RS-27 was a modernized version of the basic design used for two decades. 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.
RS-27
First stage of a Delta II rocket, including an RS-27
The RS-27 was a modified Rocketdyne H-1 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. NASA had a large supply of surplus H-1 engines in the early 1970s, as the Apollo program was ending.[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
^. Astronautix. Archived from the original on August 17, 2013. Retrieved March 5, 2015.
^. Astronautix. Archived from the original on October 11, 2011. Retrieved March 5, 2015.
^Kyle, Ed. "Extended Long Tank Delta". SpaceLaunchReport.com. Retrieved March 5, 2015.
^"Atlas IIA(S) Data Sheet". Space Launch Report. Retrieved 9 January 2016.
^. Astronautix. Archived from the original on 5 August 2014. Retrieved 10 January 2016.
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diesel, locomotive, alco, liquid, propellant, rocket, engine, developed, 1974, rocketdyne, replace, aging, delta, incorporating, components, venerable, designs, modernized, version, basic, design, used, decades, used, power, first, stage, delta, 2000, 3000, 50. For the diesel locomotive see ALCO RS 27 The RS 27 was a liquid propellant rocket engine developed in 1974 by Rocketdyne to replace the aging MB 3 in the Delta Incorporating components of the venerable MB 3 and the H 1 designs the RS 27 was a modernized version of the basic design used for two decades 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 RS 27First stage of a Delta II rocket including an RS 27Country of originUnited StatesDate1974DesignerRocketdyneManufacturerRocketdyneApplicationBoosterPredecessorH 1SuccessorRS 27A RS 56StatusRetiredLiquid fuel enginePropellantLOX RP 1CycleGas GeneratorConfigurationChamber1PerformanceThrust vacuum1 023 kN 230 000 lbf Thrust sea level971 kN 218 000 lbf Chamber pressure4 9 MPa 49 bar Specific impulse vacuum295 seconds 2 89 km s Specific impulse sea level264 seconds 2 59 km s Burn time274 SecDimensionsLength3 63 m 11 9 ft Diameter1 07 m 3 51 ft Dry weight1 027 kg 2 264 lb Used inDelta 2000 3000 5000 6000 first stage 1 The RS 27 was a modified Rocketdyne H 1 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 NASA had a large supply of surplus H 1 engines in the early 1970s as the Apollo program was ending 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 Edit Delta Astronautix Archived from the original on August 17 2013 Retrieved March 5 2015 RS 27 Astronautix Archived from the original on October 11 2011 Retrieved March 5 2015 Kyle Ed 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 This space or spaceflight related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title RS 27 amp oldid 1093275723, wikipedia, wiki, book, books, library,
