In this chapter, you got a good primer for all that is involved in designing an aircraft and the differences between an aircraft and a rover. I'm sure now you can see why we started with rovers. Compared to the aircraft, they're a piece of cake.
In the next chapter, we'll be showing you how to implement Pixhawk into a multicopter. We won't be focusing on designing a multirotor so much as making it work. So, we'll kitbash a DJI Flamewheel F550 airframe. Enjoy!