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Second Stage engine is ineffectual?


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So I'm trying to get back into this after 10 months, so I'm not just rusty, but even then I was new. I built a rocket with 5 liquid engines for stage 1 with a bunch of fuel tanks. They run out around the point where I'm supposed to cut engines and coast to the orbital burn point (~70k-100k). All is fine, I'm at 80k, 1500m/s and I drop them and go for a state 2 burn. Except the engine provides zero thrust. My speed just keeps dropping slowly. I thought it was a staging thing, so I tried having the separation in one stage and the engine in another (so stage 1, all 5 ignite, stage 2 drops those 5, stage 3 engages the secondary engine) and both in the same stage (dropping the 5 also ignites the secondary engine). Zippo. If I go to stage 3, the capsule separates from the engine/tanks and it just drops away, with the engine at full power. It just drops off like I let go of a rock.

What in the hell? Does this need to be a bug report, or am I just missing something painfully obvious?

Edited by giddonah
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For efficienty sake, you can probably ditch that reaction wheel below the command pod. At the 2nd stage, the command pod will provide more than enough torque to control the rocket.

If you do need it for the first stage, move it to below the first decoupler, so you have a little less weight to lift with your second stage

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