control surface problems

[lunardog15]

when using a space plane I made the control surfaces are a bit wack as in they are inverted. 

is this a bug? 

How do I fix this? 

[Val]

Moved from Tech Support as I think this is gameplay related.

"Up/down" gets inverted when the axis of rotation of the control surface crosses the center-line of the craft in front of the CoM.

Which is very common when the control surface is on wings that are swept back. Try mounting the control surface more perpendicular to the center-line.

Or it could be that your craft is controlled from a different cockpit or probe core than you're expecting?

[lunardog15]

the CoM is in front of the control 

Edited October 18, 2018 by lunardog15

[AeroGav]

Can also happen if you rotate the control surface 180 degrees when attaching it - for example,  if you attach the elevon to the leading edge of a wing instead of the trailing edge, it will almost certainly move the wrong way.

Easiest fix, if you don't want to change your design, is just set the "control authority" slider to a negative number,  for example if it was 100%, set it to -100%.

Often have to do this with leading edge slats, for example (they don't work like in real life!)

[lunardog15]

the control surface is on the trailing edge

 

I will submit the file some time today or tomorrow 

[lunardog15]

nrm I fixed it?