A few issues, 3D scanners are getting better, but still can't 'create' a cad drawing with all the individual pieces.
Impossible to 3D scan such a large object in any sort of decent detail.
Scaling presents a whole slew of other issues. Some things would be less than paper thin when reduced in size.
: First off... I am not in any way an engineer,
: but I was wondering with modern technology
: like 3D imaging and scanning.... why can't
: they just do this to say the bow of an Iowa
: class. There are four to chose from. Then
: take those images and scale them down to
: what you want. Maybe I am way off base. That
: is my 2 cents worth. Have a great night.