What about the movie era ships? The refit and the Reliant had engines with those black sections on the front. What were they? And then there's the Grissom with it's armored cap on the front instead of any kind of orb or collector.
One thing I'll give TNG ship design is that the engines were fairly consistent since they knew the function of their components.
One thing I'll give TNG ship design is that the engines were fairly consistent since they knew the function of their components.