One of the things I did was to look up some of the schematics online and just label and print them and add them as an appendix on the end.
Places like the Daystrom Institute;
http://www.ditl.org/ (pleased to see that old link is still going strong).
or Starship Schematics
http://www.shipschematics.net/ (woohoo 2 for 2, who needs an old defunct favourites list).
These are OK for the canon vessels, and as has been pointed out, not nuch help with the concept and brand new designs...
So while I agree, I think that as an additional document to the SRM, possibly with a page showing the vessels in scale to each other sounds like a really good idea.
DanG/Darth Gurden
The Voice of Reason and Sith Lord
“Putting the FUNK! back into Dysfunctional!”
Coming soon. The USS Ganymede NCC-80107
"Ad astrae per scientia" (To the stars through knowledge)