
Originally Posted by
pghnative
Couldn't you place 1-2 launches worth of payload in an ISS-similar orbit, then launch the shuttle with a third payload. Dock with ISS, then "shuttle" back and forth between the other payloads and ISS. Less risk to astronauts since fewer manned launches in total.
The question would be: where do you put the payloads for their parking orbit. Too close to ISS and they could collide. Too far and the shuttle wouldn't have enough fuel to go back and forth. But without running the numbers**, it's not obvious that you couldn't do this.
**two-fold problem here -- a) I don't have the right numbers (e.g. NASA-approved safe distance between ISS and other unmanned satellites; shuttle fuel reserve, etc). b) even if I had them, I personally wouldn't know how to run the numbers