| Year they were first laid down | Number of ships in class | Answer | % Correct |
|---|---|---|---|
| 1936 | 1 | Hiryū | 100%
|
| 1934 | 1 | Sōryů | 100%
|
| 1920 | 1 | Akagi | 88%
|
| 1920 | 1 | Kaga | 88%
|
| 1937 | 2 | Shōkaku | 88%
|
| 1920 | 1 | Hōshō | 75%
|
| 1929 | 1 | Ryūjō | 75%
|
| 1941 | 1 | Taihō | 75%
|
| 1942 | 3 | Unryū | 50%
|
| 1934 | 2 | Chitose | 38%
|
| 1939 | 2 | Hiyō | 38%
|
| 1938 | 1 | Kaiyō | 38%
|
| 1933 | 1 | Ryūhō | 38%
|
| 1935 | 2 | Zuihō | 38%
|
| 1935 | 1 | Shinyō | 25%
|
| 1938 | 3 | Taiyō | 25%
|