Here's a couple of quick scale comparisons that I find amusing. :)
At 1:64 (28mm) Scale, a standard 6x4 game table is just 1/2 of an inch wider than the flight deck of the USS Enterprise (above). The deck itself would be about 16 feet long. Which is, you know, big. But doable if you wanted to model the ship as a games table.
The 40K-scale wingspan of the F-18 fighter-bombers it carries would be 7.8 inches.
The 40K-scale wingspan of an E-3 Hawkeye is about 15".