Re: Ships In "The Measure of a Man"
FASA assumed that the Grissom model which became the Oberth class was a Gagarin class vessel instead, and by TNG there was an improved model named the Sagan class to which the Tsiolkovsky belonged. Perhaps one could say the Gagarin was the original model, and the Sagan and Oberth were later refits/modernizations. Best way I can see to make them all fit.
"If you think you're brave enough to walk the path of honor, then follow me into the dragon's den."