On the available ships sub-screen on the left of the shipyard screen:
If the name of the ship is particularly long, then the version of it can get truncated on the screen with the effect of the user not being able to discern its improvement level. E.G. If the ship is a constructor and it's Model (level) is over 9 and the turns to build is 10 (or more) then the Model level info is truncated. A constructor M13 with 12 turns to build gets listed as Constructor M1 12. It would be better to truncated "Constructor" then the level of improvement.