What is the max size of a scene in Blender? I created a landscape full size in Autodesk Inventor from shapes I traced using AutoCAD.  I made it from a chart of Charleston Harbor that was created in 1861.  It is about 8 x 10 nautical miles square.  I made extruded shapes and brought the file into 3DS Max so that I could export an FBX file that I brought into Blender.  The shapes seem to have come in fine, but they drift in and out of the visible space as I rotate the view.  It appears that I have exceeded the size of mesh that I can use. 

Can you tell me what the limits are for importing meshes into Blender?

How would you approach this?

I intend to use in my Blender class it to get my students to recreate the "Race to Freedom" of a steamship that was commandeered by Robert Smalls a slave and turned over to the Union Blockade of Ft. Sumter in 1862.

Can you place an image into Blender that is that large?  I mean a full scale chart of Charleston Harbor.  

Is it possible to scale a reference image that big and accurately inside Blender?
You need to set clipping limits for 3D view and for camera: