Some Deadlight entries identify boats lost under tow or finished with gunfire, while others give no sinking method. One proposed explanation is that the omissions conceal trials of new weapons. Squid initially seems a candidate, but its use was openly recorded in the final February 1946 sinkings. The unexplained entries are described as relatively rare and concentrated mainly among Type VII boats, with some Type IXs. The connection between missing details and secret trials remains a hypothesis.
Notable Point · 1:43:17-1:47:29
Missing sinking records and the new-weapons hypothesis
Openly recorded Squid attacks complicate the hypothesis that missing sinking details conceal trials of secret weapons.