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Career | ![]() |
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Name: | Akagi |
Ordered: | 1920 |
Laid down: | 7 December 1920 |
Launched: | 22 April 1925 |
Commissioned: | 27 March 1927 |
Struck: | 25 September 1942 |
Fate: | Destroyed by US air attack at the battle of Midway on 4 June 1942; scuttled after evacuation. |
General characteristics | |
Displacement: | 33,800 tons (original); 42,000 tons (after reconstruction) |
Length: | 260.68 metres (855 ft 3 in) |
Beam: | 31.32 metres (102 ft 9 in) |
Draft: | 8.71 metres (28 ft 7 in) |
Propulsion: | Steam turbines 19 boilers 4 shafts 99.2 MW (133,000 hp) |
Speed: | 31 knots (57 km/h) |
Range: | 8,200 nautical miles (15,200 km) at 12 knots (22 km/h) |
Complement: | 1,630(after reconstruction) |
Armament: | 10 (later 6) × 203 mm (8 in) guns (5×2) 12 × 120 mm (4.7 in) guns (12×1) 28 × 25 mm anti-aircraft guns |
Aircraft carried: | 60 (original) 66(+25) (after reconstruction) 18 Zeros, 18 Vals, 27 Kates (Dec. 1941) |
Service record | |
Part of: | Carrier Striking Task Force |
Commanders: | Chuichi Nagumo |
Operations: | Attack on Pearl Harbor Indian Ocean raid Battle of Midway |
The Akagi (Japanese: 赤城) was an aircraft carrier serving with the Imperial Japanese Navy during World War II.
The only ship in her class, Akagi played a major part in the Attack on Pearl Harbor, but was sunk along with three other large carriers by dive bombers from US carriers Enterprise and Yorktown in the Battle of Midway.[1]
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Akagi was laid down as an Amagi class battlecruiser at Kure, Japan. However, the Washington Naval Treaty, which Japan signed in 1922, prevented Japan from completing Akagi. Because the Treaty authorized conversion of two battleship or battlecruiser hulls into aircraft carriers of up to 33,000 tons displacement, the incomplete hulls of Amagi and Akagi were selected for completion as carriers.
Amagi's hull was damaged beyond economic repair in the Great Kantō earthquake of 1 September 1923. The remaining battlecruisers of the class, Atago and Takao were cancelled and scrapped in 1924, in accordance with the terms of the Washington Naval Treaty.
Akagi, the only remaining member of her class, was launched on 22 April 1925 and completed at Kure Naval Arsenal on 27 March 1927. As completed, the ship had two hangar decks with a capacity of 61 aircraft. The hangars opened onto two superimposed flying off decks at the bow. In theory, this permitted aircraft to take off directly from the hangars, while landing on the main flight deck above. Funnel gasses were discharged through a downturned starboard funnel. To compensate for the weight of the hangar structure, the horizontal armor was reduced from 3.8 to 3.1 inches and moved one deck lower. The belt armor was reduced from 10 to 6 inches and was also lowered by one deck.
In practice, the multiple flight deck arrangement proved unsuccessful. From 1935 to 1938, Akagi received a massive reconstruction at Sasebo Naval Arsenal. It extended the hangars forward, removed the flying off decks, and increased aircraft capacity to 91. The refit added an island superstructure on the port side of the ship, which was an unusual arrangement; the only other carrier to share this feature was a contemporary, the Hiryū. Akagi and the Hiryū were intended to work in a tactical formation with starboard-sided carriers, in order to improve the flight pattern around the formation, but the experiment was not continued beyond those two carriers.[2]
Because Akagi was initially conceived as a battlecruiser, the prevailing ship naming conventions dictated that she (like her sister ships) be named after a mountain. Akagi was named after Mount Akagi, a dormant volcano in the Kantō region (the name literally means "red castle"). After she was redesignated as an aircraft carrier her mountain name remained, in contrast to bespoke aircraft carriers like Sōryū, which were named after flying creatures. The name was previously given to the Maya class gunboat Akagi.
Akagi was active off China during the next few years as the flagship of Carrier Division 1. In April 1941, the Imperial Navy combined the First Carrier Division (Akagi and Kaga), the Second Carrier Division (Hiryū and Sōryū), and Fifth Carrier Division (Shōkaku and Zuikaku) into the First Air Fleet or KIDO BUTAI (Striking Force). Akagi, as flagship, took part in the attack on Pearl Harbor and the Indian Ocean raids.
In World War II, under the command of Captain Kiichi Hasegawa, she was Vice Admiral Chuichi Nagumo's flagship for the Striking Force for the attack on Pearl Harbor in December 1941. She launched two waves of planes at Oahu. In the first wave 27 Kates targeted Maryland, Tennessee and West Virginia, Oklahoma, and California and 9 Zeros attacked the air base at Hickam Field. In the second wave, 18 Vals targeted Neosho, Shaw and Nevada.
In January, 1942 Akagi supported the invasion of Rabaul in the Bismarck Islands. On 19 February 1942 she launched air strikes against Darwin, Australia, sinking nine ships, including USS Peary. In March, 1942 Akagi covered the invasion of Java.
In early April, 1942, under the command of Captain Aoki Taijiro, Akagi took part in the Indian Ocean raid. On 5 April 1942 she launched air strikes against Colombo, Ceylon, helping sink the cruisers Cornwall and Dorsetshire. On 9 April she struck at Trincomalee and sank Hermes and her escorts.
On 19 April 1942 she took part in the unsuccessful pursuit of the American carriers Hornet and Enterprise after they launched the Doolittle Raid.
On 25 May 1942 the Akagi set out with the Striking Force for the attack on Midway Island. Her aircraft complement consisted of 21 Mitsubishi A6M "Zero" fighters, 21 Aichi D3A "Val" dive bombers, and 21 Nakajima B5N "Kate" torpedo bombers.[3] On 4 June she launched an air strike against the island and was attacked by American land- and carrier-based planes. At 10:26 she was attacked by dive-bombers from USS Enterprise and hit by one bomb. This hit set off explosions among the armed and fueled planes within her hangar deck that were being prepared for an air strike against the American carriers. The burning aviation fuel proved impossible to control. The same attack produced two near misses, one of which, by virtue of exploding in the water alongside the stern area, caused the rudder to jam off-center after an evasive maneuver 20 minutes later.
At 10:46 Admiral Nagumo transferred his flag to Nagara. Akagi stopped dead in the water at 13:50 and her crew, except for Captain Aoki and damage-control personnel, was evacuated. She burned through the night but did not sink. The damage-control teams were eventually evacuated as well, as was (under duress) Aoki. On 5 June Yamamoto ordered her scuttled by torpedoes from the destroyers Arashi, Hagikaze, Maikaze, and Nowaki. She sank at 05:20 with the loss of 263 men at coordinates . Compared to the other Japanese fleet carriers lost in the battle, she was the luckiest, suffering the fewest casualties.[4]
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