R
rockett
Guest
Very good summation 'splinters. Also if you look at the figures in constant dollars or percentage of the Federal budget, you actually have a net decrease between now and 2015. By 2015, I suspect the plan is to stall one more year, then bail...rcsplinters":3qnw04d1 said:The Augustine Report, that document that the administration is using for cover to avoid funding manned space flight, has this to say about heavy lift.
From the Executive Summary (page 12): No one knows the mass or dimensions of the largest hardware
that will be required for future exploration missions, but it will likely be significantly larger than 25 metric tons (mt) in launch mass to low-Earth orbit, which is the capability of current launchers. As the size of the launcher increases, the result is fewer launches and less operational complexity in terms of assembly and/or refueling in space."
Basically, without heavy lift, anything beyond LEO is a pipe dream. The question is how heavy is heavy. The Augustine speaks indirectly to this as well in Figure 3.3.2-2 on page 3 mentions 9 ARES V class launchs as being required to test a Mars solution on the moon. Figuring that the ARES V is capable of 140 metric tons to orbit (also from Augustine), by my math that's around 1260 metric tons to LEO to mount missions of the magnitude that the administration wants us to believe that we will be pursuing. Bottom line is that we're going to need a significantly higher lift capability than we have or each mission beyond LEO is going to require a massive assembly project similar to the ISS if we try to ride uphill on bottle rockets.
Further, the Augustine report does not mention any glimmar of hope for "game changing" technologies from ride to LEO perspective. Most of their options were solid/cryo based with some nod to Kerosene or other dino burner for lower stages. In other words, for the ride uphill, if we wait till 2015, we're waiting to buld something we already know how to build today. I am 100% confident that the administration knows this. They also know that no commercial venture has such a booster on the drawing board. Further, they know that no commercial venture has crew capsule/transport designed for months - years in space beyond LEO with all the radiation and redundancy that will require. In other words, no calvary is coming over that hill in 2015.
Back to the point of the thread, kill NASA? Probably not. But it is quite plausible that this entire series of events was designed to avoid funding manned space flight on his watch. Did they up NASA's budget? Yes, primarily as pork to lead us to believe they're committed to commercial options. However, the lift is significantly short of the 3 billion/yr that Augustine suggested would be necessary to pursue goals of this nature. We're out of the business of manned space flight without congressional intervention.