I've ranked the D-7 as being somewhat inferior to the Constitution of the time, mostly because Kirk and co. never seemed to have much trouble dealing with these ships when they met them. I've tried to make some sense of the design as compared to Federation ships, but otherwise haven't gone into all that much detail concerning the history of the design, since we know so little about the period immediately prior to TOS.
 
 

Last updated : 15th November 1998.
This page is Copyright Graham Kennedy 1998.
 
Star Trek et al is Copyright Paramount Pictures 1996/97.
No Copyright  infringement is intended and this page is for personal use only.
All  of the above classes of star ships and all of the
named ships are copyright Paramount 1996/97.