Turning that whole thing around, has anyone ever drawn a super-heavy Federation starship equipped with only the more widely used two nacelles, but those two engines being larger?
Not with uber-nacelles (though that was a variant, never pictured but it was discussed). A TMP
-era blend of my Ariel
carrier's saucer with the frigate layout, creating an alternate-architecture dreadnought.
, from my Starship Recognition Chart
. I don't know who did this illustration of the ship, but it is very close to the pencils I used to create the silhouette on that chart. I've altered it a little to make it even closer: