The Sagan is based on the Space Shuttle, which was only designed to reach Earth orbit. Even allowing for some design changes, at the time it reaches orbit it has jettisoned the external tank. This feeds the 3 main engines, and without this tank, there is no source of fuel for these engines which would allow it to increase its speed from 5 miles per second for Earth orbit to the 7.5 miles per second needed for an Earth escape trajectory.
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05/03/2025 alle ore 07:12
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