TOS Federation class dreadnought

Converted from the sketchup file found here: https://3dwarehouse.sketchup.com/model.html?redirect=1&mid=eab3874ec56c4ae89f166d66ec4056dd&prevstart=36
Completing the Franz Joseph designs, this is the big boy, the Federation class Dreadnaught from the Star Fleet Technical Manual of the late 70's.

**Note:** Since originally posting this years ago, I've created my own, more detailed and accurate, version of the Federation class which includes additional variants like the movie era refit, along