Several Type VII entries give no weapon or method of destruction. Secret weapons testing is proposed as an explanation for some of those omissions. British practice is compared with the use of misleading weapon designations or the omission of records altogether. That comparison does not establish which weapon sank an individual boat.
Notable Point · 1:32:36-1:33:52
Could blank disposal records conceal weapons trials?
Missing descriptions of Type VII sinkings prompt an inference about secret weapons testing, without identifying a weapon for any particular boat.