The Oberth Effect - Kerbal Science (KSP)

This episode demonstrates and explains 'The Oberth Effect' and the extra efficiencies you can gain from doing some of your burns at the highest possible velocity. It may seem that the rocket is getting energy for free, which would violate conservation of energy laws, but this is incorrect. When travelling at a low speed, an increase in velocity adds a small amount of kinetic energy. Yet if you're travelling at a high speed, the same amount of velocity increase will add many more times the energy. Kinetic energy essentially gives us more power against gravitational drag.

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Видео The Oberth Effect - Kerbal Science (KSP) канала Marcus House