Dry Center of Mass?

[b0ss]

I don't know, to me it seems pretty important to have the Dry CoM show up in the VAB/SPH. Would be great for planning flight during different fuel levels.

[r4pt0r]

While you can manually lower the tanks, that is very inconvenient.

Yeah adding a toggle on the CoM button for wet/dry loads would be nice. Supported.

[mhoram]

For the moment you could use the mod RCS Build Aid, which provides this functionality.

[Wjolcz]

Yes. Dry CoM would be really nice to have.

[Red Iron Crown]

43 minutes ago, r4pt0r said:

Yeah adding a toggle on the CoM button for wet/dry loads would be nice. Supported.

Honestly I'd find it more useful to have both showing all the time, as RCS Build Aid does it. Being able to directly compare them is pretty handy, especially when building planes.

Anyway, +1 to this suggestion, it's really useful functionality. 

[klgraham1013]

Yes to this.

[cubinator]

I'd also like to see dry mass displayed in the stats tab, to make it quicker to calculate dV. I think dry CoM would be a very useful thing to see too.

[Kerbart]

2 hours ago, mhoram said:

For the moment you could use the mod RCS Build Aid, which provides this functionality.

You can't if you're on a console. That's one side effect of the console editions: “there's a mod for that” is becoming less of a catch-all response.

[b0ss]

Another good thing to have would be separate CoM+DCoM's for each stage (each toggleable, ofc).

[pandaman]

Yes to this, and I agree that it would be better to be able to have both visible together.

[b0ss]

A crewless center of mass would be nice as well.

[Red Iron Crown]

4 minutes ago, b0ss said:

A crewless center of mass would be nice as well.

Crew in pods don't have any mass.

[Superfluous J]

26 minutes ago, Red Iron Crown said:

Crew in pods don't have any mass.

That brings up, though, that it'd be nice to be able to toggle chairs as occupied or not in the VAB/SPH.

[klgraham1013]

16 hours ago, 5thHorseman said:

That brings up, though, that it'd be nice to be able to toggle chairs as occupied or not in the VAB/SPH.

No, Jeb, you can not have that seat.  That seat is for Bob.  Bob is stuck in space now.  We have to get him.  That's his seat.

[b0ss]

17 hours ago, Red Iron Crown said:

Crew in pods don't have any mass.

Really? I thought they did... does FAR fix that?

[Red Iron Crown]

11 minutes ago, b0ss said:

Really? I thought they did... does FAR fix that?

I don't think FAR touches it. There's a setting in Physics.cfg that can make kerbals in pods have mass that is off by default, I believe Realism Overhaul turns it on. Possibly other mods too.

[katateochi]

yes, I support this too. But, being the demanding so and so that I am, I want more. 
I'd like a master fuel slider that lets you drain the fuel (either all fuels, or just those selected) gradually, either across all stages or just for a single stage. That would let you see how the COM changes during flight.  For each tank the master slider would take whatever value you've adjusted the fuel to as it's 100% value, so for example if you had two tanks; one completely full and one half full, then when you brought the slider down to half, the full tank would now have 50% and the half full one would be down to 25%. Then when you return the slider to full the fuel levels would be back to what you'd set them to (one full and one half full). 
This is mostly for spaceplane design, I don't see it being as useful for rocket/landers and for spaceplanes if it altered the levels on all stages that would be ok, but stage by stage control would be ideal. Ideally what I want is a mixing board type interface with a slider per stage and one master slider that changes all stages. 

[Superfluous J]

1 hour ago, klgraham1013 said:

No, Jeb, you can not have that seat.  That seat is for Bob.  Bob is stuck in space now.  We have to get him.  That's his seat.

Haha I meant for weight balancing only but that would be nice too

[TheGuyNamedAlan]

Totally agreed. Dry CoM would help ssto calculate if reentery with empty fuel tanks works.

[Rocket In My Pocket]

Just gonna throw this mod suggestion out there for anyone who might benefit from it:

It fixes some errors in the stock COL indicator and also provides a super handy chart for comparing dry vs. wet mass control stability.

Spoiler

 

Edited August 28, 2016 by Rocket In My Pocket

[Firemetal]

And be able to see it in flight. Now THAT would be helpful.

 

[Justicier]

Ever since I saw its implementation in RCS Build aid I thought for sure that it would become stock by now. Obviously not, therefore, I support the motion wholeheartedly. Very useful for aircraft/spaceplanes or designing an asymmetric rocket or Space Shuttle clone.