Why do plane wings keep disappearing?

@Imsonicnoob * https://www.youtube.com/watch?v=UP-yMARERW8

@CloakPin explain this: https://www.youtube.com/watch?v=UP-yMARERW8&feature=youtu.be

@Imsonicnoob then it should be easier for you as you won't have to unlock tech

@CloakPin I’m in sandbox mode

Wings are sensitive to high energy now.
Upgrade the tech to make them thicker.
Don't make them too big or they will never stay on.