How successful were the human torpedoes, developed by the Japanese during the WW2?

it was a great success and the main threat for US Navy
it was a success, over 50 ships were sunk
it was a disappointment
it was never used
Kaitens had a very limited diving depth, which in turn limited the diving depth of the host sub­ma­rine. This is one of several factors blamed for the very poor survival rate of sub­marines armed with kaitens: eight sub­marines being lost for the sinking of only two enemy ships and damaging several others.

Answers distribution

it was a great success and the main threat for US Navy
it was a success, over 50 ships were sunk
it was a disappointment
it was never used
answers
flagNew Zealand
6%
0%
81%
12%
16
flagSweden
0%
20%
68%
12%
25
flagthe United States
7%
16%
60%
15%
752
flagGermany
12%
13%
60%
13%
205
flagCanada
15%
6%
60%
15%
45
flagthe United Kingdom
12%
12%
58%
14%
503
flagAustralia
9%
18%
57%
12%
54
flagthe Netherlands
14%
12%
55%
16%
54
flagPoland
11%
17%
54%
16%
18691
flagFrance
8%
18%
54%
13%
37
flagRepublic of Ireland
28%
6%
50%
14%
50
flagBelgium
22%
4%
50%
22%
22
flagSwitzerland
15%
20%
50%
15%
20
flagItaly
10%
21%
47%
21%
19
flagNorway
20%
16%
46%
16%
49
flagSpain
21%
10%
46%
17%
28
flagUnknown
13%
21%
42%
21%
1359
flagIndia
22%
26%
39%
11%
63
flagJapan
5%
35%
35%
23%
17
flagthe Philippines
38%
23%
30%
7%
13

Gender

men48%
women43%
it was a great success and the main threat for US Navy
11%
13%
it was a success, over 50 ships were sunk
19%
18%
it was a disappointment
48%
43%
it was never used
20%
24%

Language versions

question
answers
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How successful were the human torpedoes, developed by the Japanese during the WW2?
1261
55%

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