Développement du moteur J-2X

http://ntrs.nasa.gov/search.jsp?R=847889&id=10&qs=No%3D260%26N%3D277

(lien direct vers le pdf : http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070002803_2007001610.pdf )

The United States (U.S.) Vision for Space Exploration directs NASA to develop two new launch vehicles for sending humans to the Moon, Mars, and beyond. In January 2006, NASA streamlined its hardware development approach for replacing the Space Shuttle after it is retired in 2010. Benefits of this approach include reduced programmatic and technical risks and the potential to return to the Moon by 2020, by developing the Ares I Crew Launch Vehicle (CLV) propulsion elements now, with full extensibility to future Ares V Cargo Launch Vehicle (CaLV) lunar systems. This decision was reached after the Exploration Launch Projects Office performed a variety of risk analyses, commonality assessments, and trade studies. The Constellation Program selected the Pratt and amp Whitney Rocketdyne J-2X engine to power the Ares I Upper Stage Element and the Ares V Earth Departure Stage. This paper narrates the evolution of that decision describes the performance capabilities expected of the J-2X design, including potential commonality challenges and opportunities between the Ares I and Ares V launch vehicles and provides a current status of J-2X design, development, and hardware testing activities. This paper also explains how the J-2X engine effort mitigates risk by building on the Apollo Program and other lessons lived to deliver a human-rated engine that is on an aggressive development schedule, with its first demonstration flight in 2012.

Des nouvelles sur ce moteur
http://blogs.nasa.gov/cm/newui/blog/viewpostlist.jsp?blogname=J2X

[Modo sidjay]: Le statut de "nécropost" pour ce fil est devenu caduc, après concertations interne. A la vue du peu de contenu, présent ici, l'équipe du forum a pris la décision de pérenniser celui ci en ne faisant que renommer simplement son titre.

http://blogs.nasa.gov/cm/newui/blog/viewpostlist.jsp?blogname=J2X (en anglais afin de ne pas faire de faux-sens)
en particulier sur la chambre de combustion principale (MCC)

des nouvelles du moteur J2-X


et leurs concepteurs


NB: Mr Diaz a-t-il un lien de parenté avec Chang Diaz?

tatiana13 a écrit:
NB: Mr Diaz a-t-il un lien de parenté avec Chang Diaz?

Sont père est d'origine chinois, ce monsieur ne ressemble pas trop à un chinois