In career mode you have a cost constraint to optimize for. I have noticed that certain rocket sizes are much cheaper then other ones. Using the Kerbal Optimal Rocket Size calculator,assuming a 10t payload and assuming it's correct, you would get values along these lines:

Total dV

Total Cost

Cost Next dV

9000

248630

/

8000

161570

87060

7000

88400

73170

6000

53160

35240

5000

30800

22360

4500

24470

6330

4000

21080

3390

3000

11200

9880

2000

7575

3625

As you can see from this, not very scientific, table the cost from going from 7000 dV to 8000 dV is much greater then going from, say, 5000 dV to 6000 dV. There is that strange anomaly around 3000 dV. There appear to be a brake-point somewhere when it becomes more cost effective to launch multiple rockets, for example a main one and a refuel one, then to launch just one single rocket. This also appears to get much worse the heavier the payload.

That is why I have been thinking about how a mining base on Minmus is a real gateway to the heavens. Allowing you to launch much smaller rockets because you can split the dV need for the mission and the initial to orbit and out of Kerbin's SOI.

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## Question

## NaniByte

In career mode you have a cost constraint to optimize for. I have noticed that certain rocket sizes are much cheaper then other ones. Using the Kerbal Optimal Rocket Size calculator,assuming a 10t payload and assuming it's correct, you would get values along these lines:

As you can see from this, not very scientific, table the cost from going from 7000 dV to 8000 dV is much greater then going from, say, 5000 dV to 6000 dV. There is that strange anomaly around 3000 dV. There appear to be a brake-point somewhere when it becomes more cost effective to launch multiple rockets, for example a main one and a refuel one, then to launch just one single rocket. This also appears to get much worse the heavier the payload.

That is why I have been thinking about how a mining base on Minmus is a real gateway to the heavens. Allowing you to launch much smaller rockets because you can split the dV need for the mission and the initial to orbit and out of Kerbin's SOI.

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