Why would you want to keep the shuttles flying? They haven't proven to be a viable alternative to standard rockets of the Apollo era and earlier; they're expensive, problematic, and now every launch has to be followed up with a strict inspection of the leading edge of the wings. When the PR for the shuttle was in full swing, we were told that several shuttle launches each month would be the norm. The Soyuz, as old as it is, has (IMHO) proven to be more durable and useful than the shuttle.Whatever path they choose, the consequences for the near future will be enormous. Things are going to change, but that's necessary.
I was pleasantly surprised by the emphasis the committee places on the importance of international cooperation and how the ISS can help keep it at the current level. Ideally, the future of spaceflight is an international one. I don't see the point in a handful of space agencies all trying to achieve the same things while they could also build on each other's achievements.
My preferences? Keeping the ISS in orbit until at least 2020, keep the shuttles (or a shuttle-derived vehicle) flying - at a rate of one or two flights per year - to make sure the station can be fully utilised and proper crews can be maintained. Developing the Constellation program with a focus on the Moon and Mars (no need for the Orion capsules to also fly to the ISS apart from test flights). What we have now (Shuttles or derivatives, Soyuz, Progress, ATV, HTV) can keep flying to the ISS, while the new hardware (Ares launchers, Orion capsules, Altair landers, fuel depot at Lagrange points) is developed for new goals.
Ah, whatever happens, it could be very exciting.
Why would you want to keep the shuttles flying?
Why would you want to keep the shuttles flying?
Because their cargo capacity is necessary to make full use of the ISS. Progress and Soyuz, while very reliable, are simply not large enough. I specifically refer to cargo such as science racks and other heavy equipment for the ISS laboratories. The other option for NASA is to purchase Russian, European or Japanese ships, or leave it to yet unproven commercial launchers. One or two shuttle flights a year would go a very long way in resolving the issue and, in my opinion, it's the easiest solution.
True, the shuttles were always regarded as a workhorse; however, the cost of upkeep and launches keeps increasing, which necessitates they be phased out. I wouldn't write off "unproven commercial" launchers. Innovation always comes from private interest rather than any Government.
Do launch costs of the shuttle keep increasing or are they at a steady high level? Whatever the cause, it is a serious concern. Add to that the age of the shuttles with the increasing risk of some sort of failure along the line and you have a very good point of wanting to phase them out. I just wonder if it's absolutely necessary to do so by the end of next year. Why not spread the costs of one or two launches over a whole fiscal year, rather than budgeting for five or six launches per year? I'd prefer that over not having any launch capability (I doubt any commercial launchers will be available by 2011).
But we don't need it anymore. It's built.Because their cargo capacity is necessary to make full use of the ISS. .
But we don't need it anymore. It's built.Because their cargo capacity is necessary to make full use of the ISS. .
Erm. The Russians have ships capable for cargo transport, the last of which was the Progress M-67.But we don't need it anymore. It's built.Because their cargo capacity is necessary to make full use of the ISS. .
Not yet. We won't need it for construction (hopefully) after 2010, but for significant cargo and spare part transport we do.
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