If you need to animate the jet pack, you’ll need that to be skeletalmesh. If staticmesh, it won’t animate. I think James thought it didn’t attach and animate with the character animation.
Adding as component is desired. You can attach actor to actor, but then you need to make sure to attach to “bone” of skeletalmeshcomponent of the character. By default character’s root component is capsule, not mesh.
Thanks,
–Lina,