FL-C1000 Offset Mass

[klesh]

This appears to still be a problem in 1.4.2.

This appears to still be a problem in 1.4.3.

 

Hi,

The CoM is offset on the FL-C1000 to a degree that I wonder if it is not a mistake/bug.  It essentially prevents the famous Korolev Cross (irl, ksp) from happening, which lead me to look at the part further.

For me, all my separations with this booster are resulting in the part spiraling off rather than backing away and flipping as you would expect.  Mounting the radial decouplers high or low makes no difference.  Here is a test with empty boosters on a lander can cheated into orbit at Kerbin.

Note the force from the uneven decoupling has caused the Lander can with SAS off to rotate?

 

 

The CoT for the built-in sepratron boosters is centered just fine, here we see it from the top view, and an M-Beam angle-snapped to the side to give us a 90 degrees to measure against:

 

Next we see the same view, but with the CoM turned on:

 

Observe that it is offset from center to the viewer's right.

 

This is what is causing the rotation on the decoupling craft, and is what is causing the rotation on the boosters themselves when decoupled.  I suppose the offset mass could be intentional, but since this is a very iconic part with a very iconic separation sequence encouraged by the built-in sepratrons, I'm led to think it is a mistake.  Thoughts?

 

 

 

 

 

Edited April 27, 2018 by klesh

[tater]

Wonder why there are never any replies from devs on these threads. Particularly a great post like this one with pics demonstrating what's obviously wrong.

[qzgy]

For some reason it seems off-center CoMs are common within the making history parts....

[klesh]

On 3/21/2018 at 2:55 PM, tater said:

Wonder why there are never any replies from devs on these threads.

 

I just hope they are seeing them. I know the bug tracker is the preferred place to post bugs, but I’m not being paid so I’ll post them where Its easiest for me.  

[tater]

55 minutes ago, klesh said:

 

I just hope they are seeing them. I know the bug tracker is the preferred place to post bugs, but I’m not being paid so I’ll post them where Its easiest for me.  

They really need to make a thread with nothing but the bug tracker link. Having to dig around to find it is a simple way of telling us they don't care about bug reports. They bothered to make 3 forums for MH, and the first (locked) post should have been nothing but a link to the bug tracker if that's what they want.

[klesh]

fourfa sorted out the issue with the .cfg and posted a fix here: 

 

 

[klesh]

Unfortunately this was not fixed in 1.4.3 

[fourfa]

booo

[klesh]

Here is the link to the issue on the bugtracker. If you guys could upvote it or reply that you too have the problem, perhaps it will get looked at:

 

https://bugs.kerbalspaceprogram.com/issues/18266