move / controll projectiles

i want to possess a projectile and be able to move it in a certain direction.
Changing the local or world rotation doesnt work because the mesh rotates but the projectile still flies in the same direction.
How do i change the direction of a projectile ?

thanks in advance!

The root component is what you need to alter. Whatever the mesh is attached to.

the problem is, that the mesh IS the root component. but when i rotate it, it still flies in the same initial direction unfortunately.