Aerodynamic Problems

[SamTheShark]

I was building an SSTO and noticed that the vector arrow for the center of lift was missing. I have an elevon and airplane control surface on each wing in addition to 2 space plain tail fins and the blue orb for the CoL is behind the CoM. Is it important that this arrow is missing? Also is there a way to fix it? Thanks!

[bewing]

To fix it, two possibilities that I know of:

Try opening your cargo bay doors. I don't know why, but sometimes that makes the CoL arrow appear.

When you are building this SSTO, you are going to need to put some incidence on the wings. As soon as you do, the arrow will almost certainly appear. Again, I don't know why.

Is it important if the arrow is missing? No.

 

[SamTheShark]

4 minutes ago, bewing said:

To fix it, two possibilities that I know of:

Try opening your cargo bay doors. I don't know why, but sometimes that makes the CoL arrow appear.

When you are building this SSTO, you are going to need to put some incidence on the wings. As soon as you do, the arrow will almost certainly appear. Again, I don't know why.

Is it important if the arrow is missing? No.

 

Much appreciated!