I just want to bring another point of view. I do not want to reopen any discussion (I'm afraid that my English is not good enough).

The following image contains several drawings which keep the original proportions of its originals screenshots (Millennium Falcon perched on the bridge tower of the imperial star destroyer II class in The Empire Strike Back, Millennium Falcon cockpit, Nimitz class aircraft carrier) and blueprints schematics. The calculations you can see in the image are based on:
1) The width of the cockpit door of the Millennium Falcon (0,7 m.?) and its hull (0,15 m.?).
2) Perspective drawing technique with one vanishing point (VP) (one-point perspective) => http://en.wikipedia.org/wiki/Perspective_(graphical)#One-point_perspective

The image is too large (1260 x 2800), so to view it without the annoying horizontal scroll bar follow the link below.

Higher resolution => http://hi-comics-en-espanol-online.blogspot.com.es/2012/06/calculo-del-tamano-largo-y-ancho-del.html Scale calculations of the size (length and width) of the Millennium Falcon, imperial star destroyer II class and Nimitz class aircraft carrier blueprints schematics.

PS: Great job savmagoett !