Help Mechatronics make a great plane!

Let's help the great How To Mechatronics with his first plane, which he has designed and built here. He's using his CNC foam cutter and DIY Rx/Tx. He's asked for feedback, what else do you think he should know?

His video is here: https://www.youtube.com/watch?v=U2Syz6K7f2U ... https://www.youtube.com/watch?v=OnnL9hGYvC8