Creative launching can double payload capacity for rockets and space vehicles (such as the space shuttle.)
E = 1/2 m * v^2, works out to prove that a rocket roughly doubles its payload capacity if it is moving five (5) miles per hour at ignition.
Unavoidably, rockets sometimes fail to ignite, and so an entire space ship is too valuable to risk as a projectile.
But there may be a creative or ingenious way to harness the knowledge of an elevator counterweight, to improve the situation, based on a counterweight balanced on a pulley next to the stabilization rigging.
Rockets are more efficient, not less when they have empty space behind them, and a platform that is latticed or falls open after initial motion, would improve the launch. The reason for engineering, is to resolve how to manage arresting the elevator, should ignition fail.
Although I can't do the math, the height of the weight above ground zero would only be enough to accelerate the rocket body through 5 mph. If it were lifted higher, and equipped with Otis style brakes, we can theorize a rocket that is safely recovered, even if ignition fails completely.
Otis didn't invent elevators... he made grain elevators safe for humans. This might be a solution for unmanned payloads only. Doubling a payload is still tantalizing.
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Lead Mechanical AIT Engineer at Astroscale, My current project is ELSA-M
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