The Montana class design had never reached its final stage, because of it being canceled. The biggest changes would have been:
1. The secondary armament would have been changed from the twin
5inch/38 guns common durring WW2 to the 5inch/54 semi-automatic that
was fitted to the USS Midway class.
2. At the projected time of completion the Mk38 fire control systems
for the 5inch guns would have the Mk25 radar in place of the older
systems; thhis means that the directors have dish radars on top.
3. There is a posibility that the ships of this class when completed
would not be fitted for sea-planes, but have a helecoptor landing pad
for those funky looking Sikorsky "Dragonfly" helecoptors.