Combine 2 parts together

Hi,

I added 2 assets to my unity program, 1 part was the wings of an airplane and the second part was the airplane itself. Now my question is how i combine those parts together so that when I press the play button to make the plane fly so that the both parts can fly together and not that the plane flies without the wings.

Do I have to merge them together in blender and then later add the file back to Unity map?

Okay one solution is to add the scripts to both parts so that both can fly together