/sci/ - Science & Math

Anonymous Sat Jul 30 17:47:36 2022 No.14713979 [View]
File: 461 KB, 1280x1024, Delta_V_Earth_Moon_Mars.png [View same] [iqdb] [saucenao] [google]

>>14709920
Reaching lunar orbit from the surface would take the exact amount of delta-V that it would take to land on the surface from orbit in the first place. They didn't as much force however since they left the descent module on the surface. The ascent module (~4700kg) was like one third of the total mass of the LM (~15000kg)

Your estimate for 100km/h is akshually a bit low for what's needed. That's only about 0.027 km/s. The cost of lunar orbit from the surface (or vice versa) is 1.9km/s (see attached handy diagram for dummies)

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/sci/ - Science & Math

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