You are given four statements about the NACA airfoil with code “XYZZ”:
The X stands for the camber as percentage of the wing chord length. The Y indicates the thickness of the airfoil. When ZZ is 00, then the NACA-code is non-realistic., When XY is 00, then the airfoil is a symmetric airfoil.
1. The NACA airfoil with code "XYZZ" has a camber equal to X% of the wing chord length.
2. The NACA airfoil with code "XYZZ" has a thickness equal to Y% of the airfoil.
3. If ZZ is 00 in the NACA code, then the airfoil is non-realistic.
4. If XY is 00 in the NACA code, then the airfoil is symmetric.