As much as I'd like to see the manifest extend out to completely cover the gap, it is now certain that there will be a gap, and Ares/Orion is also far behind schedule (longer than is being let on my their managers publicly).
Now, the prospects of extension are getting to the critical point where it will get to be cost-prohibitive to undo what has already begun (Subcontractors contracts have not been renewed, workers have already began to loose their jobs, the final External Tanks and Solid Rocket Boosters under the current manifest are either under construction or are complete, with the tooling to either be destroyed or stored thereafter (most ET tooling will be retained and re-purposed for the Ares rockets which means that extension would further delay Ares/Orion).
Shuttle wise, the orbiters can only make so many flights before they have to have what is equal to a D check for an airplane. The current manifest will exhaust the available flights for all three (Discovery will even need a waiver to make one flight more than what is certified).
Also, the money that is used to fund the Shuttle program will fund Ares/Orion and an extension of the Shuttle program would mean that Ares/Orion would slip almost day for day, thence extending rather than closing the gap unless additional funds were allocated. If the Shuttle program were to be extended, it is almost certain that the return to the Moon would be pushed back to after 2020 instead of 2018-2020 as is currently projected.
As it stands, here is the final Shuttle manifest:
STS-127 - Endeavour - JEM-EF - July 2009
STS-128 - Discovery - MPLM - August 2009
STS-129 - Atlantis - ELC-1&2 - November 2009
STS-130 - Endeavour - Node 3 - February 2010
STS-131 - Discovery - MPLM - March 2010
STS-132 - Atlantis - MRM-1 - May 2010
STS-133 - Endeavour - MPLM & ELC-4 - July 2010
STS-134 - Discovery - AMS & ELC-3 - September 2010
Last edited by
da man /forum/images/avatars/gallery/first/default.png offline on 04 Jul 09, 00:06, edited 1 time in total.