How is RCS thruster power calculated?

[Guest]

Basically, I want to know how thrusterPower translates to actual RCS thrust of a single port. I though it's power of a single thruster, but this assumption doesn't seem to work. Did anyone figure out just how this thruster power is distributed?

[NathanKell]

For each thruster transform, thrust = thrusterPower * ((VectorYPR dot transform) + (VectorTranslate dot transform))

Where VectorYPR is pitch, yaw, roll control input (-1.0 for full deflection one way on each axis, 1.0 for full deflection the other way) and VectorTranslate is the same but for the three translation axes.

Err, that's how it *should* work. But instead they use the part's origin rather than the transform's position, which is why stack-mounted RCS (like RCS on a pod) is flaky.

[Guest]

So let's say I have 6 thrusters on the rear and 3 on the front, all pointing up. The COM is in the middle. If the rear segment has thruster power=1, the front segment should have thruster power=2, right? Or did I mix something up?

[NathanKell]

Each segment will have the thrusterPower you assign to it. I don't understand the question.

[Guest]

What do you mean by that? Oh, forgot to mention that I want that contraption to be balanced. As such, I want each segment to have the same thrust in a particular direction.

[NathanKell]

What I mean by that is "please rephrase your question, I don't understand it."