3 ms·
Other people have mentioned why you wouldn't want to use a railgun to get a payload into orbit in one go. However, the exponential nature of the rocket equatio
by Symmetry 12y ago
Other people have mentioned why you wouldn't want to use a railgun to get a payload into orbit in one go. However, the exponential nature of the rocket equation means that every km/s you can get to start with has a large effect on what fraction of your rocket has to be fuel.