Type of load on "Kate": ↑ 45 cm Type 91 torpedo ↓ 800 kg bomb
Akagi was laid down on 6 December 1920 at Kure Naval Dockyard as one of four Amagi class battlecruisers. However, the Washington Naval Treaty, signed in 1922, prevented Japan from completing these ships. The incomplete hulls of Akagi and her sistership Amagi were selected for completion as aircraft carriers, but Amagi's hull was damaged beyond repair in an earthquake. Akagi, the only remaining member of her class, was launched on 22 April 1925 and completed on 27 March 1927.
Akagi was active off China during the next few years as the flagship of Carrier Division 1. As the flagship of the First Air Fleet (combined the First, Second and Fifth Carrier Divisions in April 1941) Akagi took part in the attack on Pearl Harbor and Darwin, the invasion of Rabaul and Java, the Indian Ocean raids, and the battle of Midway, were she was hit by two (probably only one) bombs at 1025, 4 June 1942. The hits caused massive fires and secondary explosions among fueled and armed aircrafts on the hangar decks and jammed the rudder. Four and a half hours after the attack the crew was ordered to abandon Akagi. The doomed ship was scuttled by torpedoes from her escort destroyers at 05:20, 5 June 1942.
Ingame, Akagi has the same model as IJN Kaga and IJN Hiryū: there are literally no difference between them, and even more, they appear only one one map - Midway.
The interesting feature of this ship is that you can change type of bomb load on spawning Nakajima B5N2 "Kate" by pressing up and down arrow keys: