How to Get Component Velocity in World space?

Ref_Prop and Ref_Rudder is reference point in my blueprint. Not visible and no collision.

I want get SpeedOfComponetX and SpeedOfComponetY. But non of them work:

And I tried to enable collision in reference point, but I got this:

**I addforce at propeller on Y direction, so that the Pawn is rotating, so that propeller and rudder goes around the Cockpit. The velocity of propeller and rudder should in opposite direction, and definitely can’t be same. **

But as I showed in screenshots, I get same value for different component, I guess the result that I got is the velocity of the root object, not the component. How to get the velocity of component?