how come nasa dosent launch 2 shuttles on the same day

[Star explorer]

well i kinda just thought of this how come nasa launch on the same day. not at agsactly at the same time but on the same day. wouldent it double the progress of building ISS before 2010

 

[astrosammy]

It would be possible, but I think they don't do it because of safety.

 

[Urwumpe]

The main problem aside of safety concerns is work - it requires a lot of resources to launch one Shuttle.

 

[DaveS]

It would be possible, but I think they don't do it because of safety.

Not possible! There's only one qualified Launch Team and that team is more than busy enough with one stack.

From start tanking to T0 it takes about 9½ hours. But the Launch Team members actually report for duty about 3 hours prior to that, leading to about 12½ hours of actual on-duty time for them.

This is usually why they never go for a "three in a row" launch attempts, management want to give the team some time off to rest.

There are other teams such as vehicle securing and scrub turnaround teams that takes over from the Launch Team in the event of a scrub to give the Launch Team some time off, but these teams are never on duty for longer than 8 hours.

This is just some of the personnel problems, there are other technical problems as well that prevents this.

 

[ryan]

The main problem aside of safety concerns is work - it requires a lot of resources to launch one Shuttle.

NASA had enough trouble launching Gemini 6 and 7 in a 3 day period, who knows what it would take for on the same day.