I would suggest MiniPanamax and MaxiPanamax. 
From the Wiki article on Panamax, they seem to indicate Panamax (original flavor) and Panamax II.
Class Panamax Panamax II
Length 1050 ft (320.04 m) 1400 ft (426.72 m)
Width 110 ft (33.53 m) 180 ft (54.86 m)
Draft 41 ft (12.50 m) 60 ft (18.29 m)
TEU 5000 12000
The mall in front of the Administration Building at Quarry Heights is (supposedly) the same size as a lock. If you want to make sure your ship fits just put it in the middle of the mall, if it doesn’t touch the sidewalks you’re good to go.
Only brought out once a month.
I thought that the Nimitz-class carriers were still built to Panamax standards? Is that still true for the later flight of those ships, or just for the initial four? (And, from what I recall, when they go through, it’s pretty hard to see the canal for the carrier.)
The Nimitz class aircraft carriers have a waterline beam of 134ft (41m). Panamax beam is 106ft (32.3m), with 108ft being the widest ship ever to go through. So, no Nimitzes get through the Canal.
Oops. OKay, thanks for the answer.
Per wiki, the previous class of US aircraft carriers, the Kitty Hawk class, was also bigger than Panamax at 140’ beam at the waterline, much less at the deck flare.
Ditto the Enterprise, a class of one ship on a more-or-less Kitty Hawk hull.
Ditto the preceding class, Forrestal.
Ditto the preceding class, Midway.
The Essex class Essex-class aircraft carrier - Wikipedia, the mainstay of post-WWII naval aviation would have fit. These were all built in the 1940s & mostly taken out of service during the 60s. About half were completed too late to participate in WWII.
Do you know that for a fact? They have a hellava lot of stuff hanging off either side above the waterline.