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Re:SpaceX Grasshopper Flies High by rbanffy on Wednesday April 24, 2013 @07:55AM (#5600963)
The first sage alone won't take your payload to LEO - you'd still need a second stage. However, orbital tugs with electric engines could take your payload from LEO to other orbits with less reaction mass than a chemical rocket could.

You'd still have to refuel their reaction mass, unless we are talking solar or magnetic sails.

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