Regarding the latest article that Atlantis and Endeavour can technically fly two flights per year:
Can some one elaborate more on how United Space Alliance can do this? (technically).
1. Even for STS-135, there is a debate that Discovery will be used instead of Atlantis citing Atlantis was due for an OMDP etc. So how can Atlantis can continue flying without a significant gap according to the current situation?
2. Where will the boosters and ETs come from? (and on what time frames?)
3. Atlantis does not have a SSTPS capability as such it cant do a mission of no more than 12 days. This limitation was also seen on STS-135 where only a single day was added. If Atlantis is going to be fitted with SSTPS, how long will it take ?