So I decided that Im gonna re-do the A380, As I have a new way of doing it.
Ill go through it here.
1. Ill get a reference picture that shows a lot of detail etc. Nose to wheel, wheel to wing, wing to rear wheel, real wheel to tail
2. Measure the length of the plane, and adjust the image so the length of the plane ( 66.16m) is the same as the pixels of the image 616 pixels, but multiplying be 10
6. Make the length of the plane the same as the units in the toolbox