翅（chi）means ‘wings’ in chinese. How to view it in vivid method?支 （zhi）is ‘supporting’ which 又 looks like ‘a man with strong legs’ and the top '+’ acts as an object that you try to lift.
羽 （yu）means ‘feature’. In my eyes, half of 羽 is 习 which appears like ‘the left wing’.
That is true it is the wings those support the weight of the bird flying high in the sky.
(You may also think in this way：飞 is flying that looks like a bird with wings. 习 is another version of 飞.)
Childish pure mindset can simplify your life which let you live in a light way！ Without man-made troubles you will work in high efficiency!