Type 91 History
- Chronological Table
- 1931 Type 91 aerial torpedo is into service, start production.
- 1936 Revision 1. Self-detachable wooden plates are introduced.
- 1937 Launch-tests at 500m and 1,000m with wooden damper.
- 1939 Revision 2 starts production. The sinking level after water entry becomes big problem.
- 1941 Revision 2 cleared the test of shallow water launching by introduction of anti-rolling controller. Battle of Pearl Harbor, Battle of offshore Malay.
- 1941 Revision 3 starts production.
- 1942 Battle of Indian Ocean, Battle of the Coral Sea, Battle of Midway, Battle of the Santa Cruz Islands.
- 1943 Revision 5 starts production.
- 1944 Battle of offshore the Marianas Islands, Aerial Battle of offshore Formosa.
Read more about this topic: Type 91 Torpedo
Famous quotes containing the words type and/or history:
“Music, in performance, is a type of sculpture. The air in the performance is sculpted into something.”
—Frank Zappa (1940–1994)
“I assure you that in our next class we will concern ourselves solely with the history of Egypt, and not with the more lurid and non-curricular subject of living mummies.”
—Griffin Jay, and Reginald LeBorg. Prof. Norman (Frank Reicher)