Re: Could DC-X help design of a new EELV 2nd stage?




Chris Hall wrote:

I note that one of the options people have talked about for a new,
higher thrust 2nd stage that might allow the EELVs to launch a CEV is
built around 4 RL-10s. IIRC, this is the configuration that DC-X had.
Could the layout, plumbing and control systems for the the propulsion
side of the DC-X act as a starting point to jump-start such a design? I
understand that the design would have to be optimized for vacuum.

If on the other hand a clean slate would make more sense, at least the
whole design shouldn't cost (much) more than the entire DC-X project, no?

The CEV is vastly over engineered and certainly is not necessary to
transfer crews to and from larger interplanetary spacecraft and their
embarkation points. It needs to be killed. Do you understand the
concept of killing a program at NASA? You should, they've done enough
of it in the past.

http://cosmic.lifeform.org

.



Relevant Pages

  • Could DC-X help design of a new EELV 2nd stage?
    ... I note that one of the options people have talked about for a new, higher thrust 2nd stage that might allow the EELVs to launch a CEV is built around 4 RL-10s. ... plumbing and control systems for the the propulsion side of the DC-X act as a starting point to jump-start such a design? ...
    (sci.space.policy)
  • Re: Could DC-X help design of a new EELV 2nd stage?
    ... IIRC, this is the configuration that DC-X had. ... side of the DC-X act as a starting point to jump-start such a design? ...
    (sci.space.policy)
  • Re: CEV history
    ... can reuse the CEV design itself! ... NASA could still do the right thing here, ... What's the matter with outsourcing decision making of that scope? ...
    (sci.space.policy)
  • Re: LSAM
    ... The CEV may also need lower-thrust ... rocket engines for the final descent to the lunar surface. ... tanks will also make RCS system design trickier, ...
    (sci.space.policy)
  • Re: Lockheed-Martin lifting body CEV proposal?
    ... The Lockheed design was so heavy that it required two launches ... Pat mentions the primary reason for selecting the Apollo Plus / CEV proposal ... participation in the X-33 VentureStar program was a contributing factor ...
    (sci.space.history)