Talk:Submarine 53cm Bow Torpedo Mount (8 tubes)/@comment-24448776-20140610033850/@comment-87.145.126.70-20140612153651

10 tries. According to the formula here

http://wikiwiki.jp/kancolle/?%C0%EF%C6%AE%A4%CB%A4%C4%A4%A4%A4%C6#ma980dcc

the chance for Goya to cut in is 0.85*50+30 = 72.5%

The chance that Goya fails to cutin 10 times in a row, despite being able to, is 0.275^10 = 0.0000024%.