Hiryu
Hiryū was a modified Sōryū-class aircraft carrier of the Imperial Japanese Navy. She was one of the carriers that began the Pacific War with the attack on Pearl Harbor. After being heavily damaged by air attacks 4 June 1942 at the Battle of Midway, Hiryu sank on 5 June 1942.
The ship was built within the specifications of the Washington Naval Treaty that was in place at the time, which placed limits on its tonnage and armament. As a result, the Sōryū and Hiryū were relatively small as fleet aircraft carriers compared to their contemporaries during World War II, carrying around 70 aircraft. Compared to her near sister Sōryū, Hiryū was almost four feet greater of beam, 2,000 tons heavier, and had her island superstructure placed on the port side and farther aft on her flight deck.
The port side island was an unusual arrangement; the only other carrier to share this feature was the Japanese aircraft carrier Akagi. The 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. The enlarged bridge design created turbulence, causing far greater deck accidents in the Hiryū than her sister carrier.
Active throughout the first six months of the Pacific War, she took part in the December 1941 Pearl Harbor attack as well as operations in the East Indies and Indian Ocean area. On 4 June 1942, during the Battle of Midway, Hiryu's aircraft inflicted serious bomb and torpedo damage to USS Yorktown (CV-5), causing her abandonment. Later that day, Hiryu was hit by U.S. carrier dive bombers. Though she remained underway for a time, she had been fatally damaged. Abandoned early the following morning, Hiryu sank at about 9:00 on 5 June, the last of four Japanese aircraft carriers to be lost in the battle.
text source: www.history.navy.mil; www.wikipedia.org