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If I was to calculate the escape velocity of a body, e.g. the earth which is approx. 11.2km/s, could this then be used as the delta-v in the ideal rocket equation to calculate the mass ratio needed?

This would be for both a trip to the moon and to Mars so it's not just LEO. That's why I presume the escape velocity is the delta-v in this case?

Also, If this was so and I could use it, for the equivalent nozzle exit velocity, would I have to add up the main engine and any boosters?

Thanks in advance

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# Question on delta-v and escape velocity?

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