Amagi Aircraft Carrier Preliminary Designs 1,2

This is something different from all those battleship designs from Vickers to Argentina.
One of the preliminary proposals to convert the Amagi class Battlecruisers IJN Amagi and Akagi to aircraft carriers.
This is most likely an early implementation because the hanger capacity was only for 36 torpedo bomber sized aircraft (Mitsubishi B1M) and there is a large unoccupied space around the funnel uptake. There are 7 hangers distributed among 3 hanger spaces in the hull: One forward for 4 aircrafts (No.1), one aft for 22 aircrafts (No.2-4) and one below the after one (No.5-7) for 10 aircrafts.
The most prominent difference between this design and what actually became the Akagi are the large Funnel reminiscent of the USN's Lexington class, a bridge superstructure separated from the funnel, four single 12cm AA guns on the flight deck rather twins on sponsons on the side, nne deck higher main deck for housing the crew but the flight deck was still lower in height then in the Akagi, and more numerous casemated battery: All 20cm guns in casemates with an extra 7x 12cm on each side.
While the data page shows 36 bomber aircrafts as it's air group I've instead made a mixed group based on the hangers:
4x Mitsubishi C1M Scout planes
10x Nakajima A1N Fighters
22x Mitsubishi B1M Bombers

The design had the following characteristics:
Dimensions: 235 (pp) 249 (wl) 258,2m (oa) x 33,5 (at bulges) x 6,58m
Displacement: 29.600tons (standard), 33.000tons (full load)
Armour: 127mm Belt, 79mm Deck
Engines: 131.200shp, Gihon steam turbines, 4 shafts
Range: 14.800km at 26km/h (8.000nm at 14knots)
Speed: 57km/h (31,75knots)
Armaments:
10x1 20cm/50 Type 3 (3rd Year Type No.1) Casemated Guns
14x1 12cm/45 Type 10 (10th Year Type) Casemated Guns
4x1 12cm/45 Type 10 (10th Year Type) AA Guns
Aircraft capacity: 36 planes

Original drawing:
https://iiif.dl.itc.u-tokyo.ac.jp/repo/s/hiraga/document/bfc455a6-11c9-4410-beb1-894fd0f22b34
Data page:
https://i.imgur.com/ziXEYsk.jpg
https://i.imgur.com/cjdUcXm.jpg

On design 2 the changes are noticeable:
Shorter funnel as well as slightly smaller and moved well forward, the casemated guns moved much closer to the centre of the ship possibly to improve their effectiveness in rough weather though they are still higher then on Akagi as built.
A longer and fuller (forward) flight deck, though it's height further reduced. The AA guns moved slightly forward and while the original drawing does not show a bridge, the angle of fire of the forward AA guns as well as the existence of the funnel meant there should had been one. Though it was possible it was moved under deck on the sides to further reduce topweight.
Stern similar to Akagi as built eg a cruiser type stern rather a straight stern.

The design had the following characteristics:
Dimensions: 235 (pp) 248 (wl) 264,5m (oa) x 33,5 (at bulges) x 6,58m
Displacement: 29.600tons (standard), 33.000tons (full load)
Armour: 127mm Belt, 79mm Deck
Engines: 131.200shp, Gihon steam turbines, 4 shafts
Range: 14.800km at 26km/h (8.000nm at 14knots)
Speed: 57km/h (31,75knots)
Armaments:
10x1 20cm/50 Type 3 (3rd Year Type No.1) Casemated Guns
14x1 12cm/45 Type 10 (10th Year Type) Casemated Guns
4x1 12cm/45 Type 10 (10th Year Type) AA Guns
Aircraft capacity: 36 planes (probably)

Original drawing:
https://i.imgur.com/tjT14T6.jpg
Data page:
https://imgur.com/ziXEYsk
https://i.imgur.com/cjdUcXm.jpg