Re: Ares vs DIRECT


"Michael Gallagher" <mikejoe7g@xxxxxxxxx> wrote in message
news:d7vtk39tgkbj22el1m9781o456s4b5pmnp@xxxxxxxxxx
On Mon, 26 Nov 2007 13:44:31 -0500, "Jeff Findley"
<jeff.findley@xxxxxxxxxxxxxx> wrote:


"Michael Gallagher" <mikejoe7g@xxxxxxxxx> wrote in message
news:8rebk35arsg7e912ub67tr7dv190kfl3b1@xxxxxxxxxx
If Bush's successor were to scrap the VSE and Ares V and confine Orion
to LEO, you'll need a booster for that application anyway. Which
brings us back to Ares 1 (or something with Ares 1's capability).

Again, why? ....

Because it will be hard to justify to the people who hold the purse
trings to justify the use of a big rocket when a smaller one will do.
And given that the current proposal for using Orion to resupply ISS is
to use an unmanned capsule, you don't need the full sized booster.

You don't like the stick, it would make more sense to take the second
stage and design a liquid fuled first stage to fill the place of the
SRB.

Actually, I don't want to see NASA develop *any* shuttle derived launch
vehicles since I think they should be buying commercial launches instead.
But if NASA must have its own launch vehicles, I think it ought to get one,
not two, especially when Ares I payload to LEO is very close to the that of
a Delta IV Heavy or Atlas V Heavy.

I really dislike the five segment SRB's. SRB's are bad enough, but adding a
segment makes them an all new stage with a whole new set of problems to
solve.

Jeff
--
A clever person solves a problem.
A wise person avoids it. -- Einstein


.

Relevant Pages

  • Re: Worry over SRBs
    ... but crew should launch on liquids only. ... On Ares I, the primary difference between the shutte and the CEV will ... In the case of Soyuz T-10-1, for instance, the rocket ... lifted it from the doomed booster. ...
    (sci.space.shuttle)
  • Re: Flexible Path? What?
    ... :>: simplifying ground handling and launch preparations. ... Dumping Ares I ... :>and less capability for direct cargo missions. ... ....and there go the cost savings. ...
    (sci.space.policy)
  • Re: Flexible Path? What?
    ... Dumping Ares I ... for lunar missions is difficult to understand. ... If your Orion has a Launch Escape System, ... before getting to the humongous cost and risk... ...
    (sci.space.policy)
  • About Augustine Final Report
    ... In its selection of a crew launch system, ... premium on crew safety, and the Ares I ... But if the SRB of Ares I fails the crew has no "abort capability ... abort a Moon mission with some billion $ still in orbit if there is no proof ...
    (sci.space.policy)
  • Re: Flexible Path? What?
    ... Ares I or not. ... simplifying ground handling and launch preparations. ... and less capability for direct cargo missions. ... substantially increases the minimum cost for a single lunar mission as compared to the ...
    (sci.space.policy)