I was about to say that looks like more than 15 pounds of spare parts... but after checking the official definition and then subtracting the motor weights, that looks like you only have 5 pounds of spares there
This past season was the first time our team used these, and I have to say, they really get the job done - lightweight, simple to make, and versatile!
Plus, they fit in your carry-on.

If they let you through.
_Alex