Mod that added red ball showing shift in CG from fuel burnoff in VAB/SPH

[AeroGav]

On some old Kerbal Youtube videos I saw what looked like a really useful mod for the VAB/SPH.    In addition to the standard yellow ball (CoG), blue ball (CoL) and purple indicator (CoT),  it added a red one.    This indicated where CG would end up after the fuel all burns off.    I've started building some more complex designs, manually emptying the tanks is getting very time consuming, and if you forget one (buried inside a custom wing tunnel, no doubt) you can end up building the craft with it's empty CG in the wrong place.  Then having to start over - fun times.

 

Anyone remember what the mod was called, and is it still active?

 

[razark]

RCS Build Aid might be what you're thinking of.

And it's working in 1.2.

[hyf97ca]

You mean RCS Build Aid?
 

 

[Nightmare]

Yeah thats the one