RS-68 (motor de cohete) (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "RS-68 (motor de cohete)" in Spanish language version.

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1web.archive.org

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1webcitation.org

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1prnewswire.com

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prnewswire.com

«United Launch Alliance First RS-68A Hot-Fire Engine Test a Success». PRNewswire. 2008-09-25. Archivado desde el original el 28 de marzo de 2012. Consultado el 30 de septiembre de 2008. «Currently, the RS-68 engine can deliver more than 660,000 pounds of sea level thrust and the upgraded RS-68A will increase this to more than 700,000 pounds. The RS-68A also improves on the specific impulse, or fuel efficiency, of the RS-68.»

ulalaunch.com

«Delta IV User's Guide». ULA. Archivado desde el original el 10 de julio de 2014. Consultado el June 2013.

web.archive.org

«Delta IV User's Guide». ULA. Archivado desde el original el 10 de julio de 2014. Consultado el June 2013.

webcitation.org

«United Launch Alliance First RS-68A Hot-Fire Engine Test a Success». PRNewswire. 2008-09-25. Archivado desde el original el 28 de marzo de 2012. Consultado el 30 de septiembre de 2008. «Currently, the RS-68 engine can deliver more than 660,000 pounds of sea level thrust and the upgraded RS-68A will increase this to more than 700,000 pounds. The RS-68A also improves on the specific impulse, or fuel efficiency, of the RS-68.»